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Location: London, United Kingdom Workplace: fully About InvestEngine We’re a London-based fintech on a mission to make ETF investing simple and accessible. Over 150,000 clients have trusted us with over £3.5 billion in assets — and we’re just getting started. We’ve been featured by MoneyWeek , Finder and Forbes , and we’re growing fast with big ambitions. About the Role We’re looking for a Senior Backend Engineer to join our Payments Team and help us strengthen and scale a business-critical part of our platform. You’ll work on complex backend challenges across payment flows, integrations and system reliability. You’ll contribute to architecture, improve system stability and scalability, and help evolve the technical foundations of our Payments domain. You’ll collaborate closely with Engineering, Product, Compliance, Operations and other business teams to build reliable solutions and improve critical operational processes. What You’ll Do Design, develop and maintain backend services in Python 3.11 using Django / DRF Contribute to the architecture and long-term technical development of our Payments systems Build and improve RESTful APIs and integrations Work with complex backend and legacy systems and identify root causes of technical problems Continuously improve system performance, reliability and scalability Investigate and resolve production issues and recurring problems Work with MySQL and Redis Participate in architectural discussions and contribute to technical decisions Identify and reduce technical debt Improve development processes, code quality and engineering practices Collaborate with Product, Compliance, Operations and Business teams Contribute to the evolution of our architecture and internal engineering tools What We’re Looking For 4+ years of experience in backend development Strong Python skills and deep knowledge of Django or similar frameworks Solid understanding of relational databases, caching and high-performance backend systems Experience with REST APIs, service design and distributed systems Experience working with complex or legacy systems Ability to independently investigate complex technical problems and identify root causes Experience working with production systems and improving their stability Strong ownership and ability to make sound technical decisions Familiarity with Git, CI/CD practices and modern engineering workflows Strong communication and problem-solving skills English B2+ and fluent Russian Nice to Have Experience working in fintech, payments or another regulated industry Familiarity with AWS and Docker Experience with RabbitMQ, Kafka or other message brokers Experience with payment providers or financial integrations Contributions to open source or personal side projects How We Work We’re a lean, collaborative team where engineers have a real influence on architecture, technical decisions and engineering culture. We value ownership, curiosity and continuous improvement . You’ll have the autonomy to make technical decisions and work on meaningful, business-critical systems without micromanagement or unnecessary bureaucracy. Within the Payments team, you’ll help build systems that remain stable, reliable and scalable as the business grows . What We Offer Impact from day one — work on business-critical Payments systems Technical growth — influence architecture and technical decisions Hands-on engineering — solve complex backend challenges across production systems Modern tech stack — Python 3.11, Django, MySQL, Redis, AWS, GitHub, TeamCity Remote-first and flexible — work from anywhere, at your own pace Unlimited vacation — take time off when you need it, no fixed limits Supportive team — thoughtful, skilled colleagues who care about quality and results Hiring Process Intro call with our Talent team Technical interview with the Backend team Gamified cognitive assessment to understand how you think and problem-solve Final conversation with our CTO

Location: US (EST) Workplace: Remote ABOUT MORPHO Morpho is a leading Decentralized Finance (DeFi) lending protocol backed by a16z crypto, Paradigm, Ribbit Capital, Apollo, Vaneck, Coinbase Ventures, Variant and 50 others to build an open credit network giving anyone, anywhere, access to the best possible terms. Morpho is experiencing exponential adoption, with over billion in deposits on the network and used by institutional clients including Bitwise, Galaxy, and Anchorage Digital and the largest crypto exchanges, such as Coinbase, Binance, and Kraken. Now, Morpho is scaling its team of contributors to establish itself as the open credit network, not just of DeFi, but of the world.   WHY MORPHO EXISTS Everyone has the potential to build something great for the world. But fulfilling that ambition almost always requires more: people willing to trust you with their capital. Yet access to capital still depends on where you live, who you know, and which institutions are willing to trust you. Even when capital is available, it sits fragmented across disconnected networks and hidden behind intermediaries. The result is a system that fails most of the people it should serve. Borrowers overpay. Lenders earn less than they should. Many are shut out entirely, not because they are unworthy of credit, but because today's infrastructure was never built to connect them. Morpho exists to solve this. Full article here https://morpho.org/blog/why-morpho-exists/. LOCATION Remote ROLE Payments is one of the largest industries in finance, and a major opportunity for onchain credit. Across card networks, bank transfers and other payment systems, money is confirmed well before it settles, and credit can play an important role in increasing utility for both sides of the network. Midnight, Morpho's fixed-rate, fixed-term lending protocol, makes this practical, with short loans on predictable terms. Morpho provides open credit infrastructure that payments companies can build on. This role leads that work: you will partner with acquirers, card issuers, payment networks and lenders to understand what they need, and shape Morpho's infrastructure so their products can put credit to use. RESPONSIBILITIES - Own the vision, strategy and roadmap for credit in payments on Morpho. - Act as Morpho's domain expert on the payments industry. Go deep with payments companies and lenders on how money moves and settles, represent Morpho with them, and turn conflicting input into precise problem statements and requirements. - Prioritize market opportunities across networks, partner types, and regions, and make the trade-offs explicit. - Drive each initiative from problem definition through launch and adoption, across teams you do not manage. Define success before launch, measured in active loans and how often they repeat. - Create scalable products and integrations that any acquirer, issuer or lender can adopt, and make the build or partner call for each piece. - Work as a peer to the protocol team on design trade-offs, such as how settlement data is verified and how lenders are repaid, bringing legal in early on requirements by jurisdiction. WHAT SUCCESS LOOKS LIKE First 30 days You understand Morpho's lending stack, Midnight and the current receivables build in detail: who the partners are, how money and data move, and where it breaks. You have met protocol, solutions, partnerships and legal, and spoken with the current partners yourself. First 3 months Version one is written down: standard terms, the integration path and what lenders require. You have tested it with several acquirers or issuers and more than one lender, and the first partner is onboarding on those terms. You have a ranked map of the wider payments opportunity. First 6 months Loans repeat every week, with more than one borrower and more than one lender on standard terms. A second use case, on the issuer side or a second network, is in proof of concept. Morpho has the evidence to decide how much further to invest in payments. MUST HAVE EXPERIENCE & SKILLS - Shipped products in payments: acquiring, processing, card issuing, network settlement, or lending against payment flows such as receivables financing, merchant cash advance or buy now, pay later. - Detailed knowledge of how money and data move between issuers, networks, acquirers and merchants, including settlement timing, prefunding and where the risk sits. - A track record of taking a product from zero to one, where you found the opportunity and carried it through launch. - Comfortable in commercial and legal detail with banks, processors and credit funds, and experienced in shipping regulated financial products. - You act first: you find the right person at a partner and get the meeting without waiting to be introduced. - Able to deliver through influence across teams, without a dedicated engineering team. - Clear writing and speaking for technical and non-technical audiences. - Team-first mindset, low ego. NICE TO HAVE - Credit experience: underwriting, asset-backed lending, or working with credit funds. - Experience with stablecoins, stablecoin settlement or onchain lending. - Has been a founder, or the first product manager on a new business line. PERKS & BENEFITS We design benefits around deep work and growth, so you can do the best work of your career. Expect fair, top-tier compensation, real flexibility, time together in Paris, great health coverage, and support to keep learning.   EQUAL OPPORTUNITY We welcome applicants from all backgrounds and hire based on talent, potential, and values alignment.

Location: Europe Workplace: Remote About Eneba At Eneba, we’re building an open, safe and sustainable marketplace for the gamers of today and tomorrow. Our marketplace supports close to 20m+ active users (and growing fast!), provides a level of trust, safety and market accessibility unparalleled to none. We’re proud of what we’ve accomplished in such a short time and look forward to sharing this journey with you. Join us as we continue to scale, diversify our portfolio, and grow with the evolving community of gamers. Role Overview We are looking for a hands-on, empathetic Customer Support Team Lead to guide our Payments Support team. In this role, you will mentor frontline agents, manage complex payment escalations, and collaborate with Risk, Compliance, and Product teams to deliver fast, secure, and frictionless financial support experiences. Responsibilities - Team Leadership & Coaching: Guide, mentor, and supervise payment support specialists to achieve operational KPIs, ensuring top-tier communication, accuracy, and customer care across all interactions. - Escalation & Risk Management: Act as the primary point of escalation for complex, high-stakes, or sensitive payment inquiries (e.g., failed transactions, chargebacks, account holds, and suspected fraud), ensuring swift and compliant resolution. - Cross-Functional Collaboration: Partner closely with Risk, Compliance, Finance, Engineering, and Product teams to troubleshoot payment incidents, refine workflows, and advocate for customer needs. - Performance & Workforce Management: Conduct regular 1:1s, performance reviews, and quality assurance audits; collaborate with Workforce Management on capacity planning, shift scheduling, and hiring. - Metrics & Analytics: Monitor key support and payment-specific metrics (CSAT, First Contact Resolution, SLA adherence, and escalation rates) to measure team effectiveness and identify operational bottlenecks. - Continuous Improvement: Analyze customer journeys and payment touchpoints to reduce friction, update knowledge bases, and foster a culture of feedback and adaptability as our financial products evolve. Requirements - Payments & Fintech Experience: Proven experience in customer support within payments, fintech, banking, or e-commerce, with a solid understanding of payment processing, chargebacks, refunds, and KYC/AML basics. - Leadership Track Record: Experience setting clear deliverables and coaching support teams (leading teams of 10+ is a strong plus) to hit KPIs, ideally in hybrid or fully remote environments. - Composure Under Pressure: High sense of urgency with the ability to navigate sensitive financial issues, ambiguity, and rapid product changes with calm, decisive communication. - Process & Project Mindset: Strong organizational, time-management, and project management skills, with a history of optimizing support workflows and standard operating procedures (SOPs). - Communication Mastery: Deep understanding of tone-of-voice principles, de-escalation techniques, and clear cross-functional communication with both technical and non-technical stakeholders. - Adaptability: Self-starter capable of operating autonomously; experience supporting evolving, early-stage, or high-growth products is highly desirable. What it’s like to work at Eneba *Opportunity to join our Employee Stock Options program. *Opportunity to help scale a unique product. *Various bonus systems: performance-based, referral, additional paid leave, personal learning budget. *Paid volunteering opportunities. *Work location of your choice: office, remote, opportunity to work and travel. *Personal and professional growth at an exponential rate supported by well-defined feedback and promotion processes. *Please attach CV's in English. *To find out about how we handle your personal data, make sure to check out our Candidate Privacy Notice https://www.eneba.com/candidate-privacy-notice https://www.eneba.com/candidate-privacy-notice

Location: San Jose, California, United States Who We Are At OKX, we believe that the future will be reshaped by crypto, and ultimately contribute to every individual's freedom. OKX is a leading crypto exchange, and the developer of OKX Wallet, giving millions access to crypto trading and decentralized crypto applications (dApps). OKX is also a trusted brand by hundreds of large institutions seeking access to crypto markets. We are safe and reliable, backed by our Proof of Reserves. Across our multiple offices globally, we are united by our core principles: We Before Me , Do the Right Thing , and Get Things Done . These shared values drive our culture, shape our processes, and foster a friendly, rewarding, and diverse environment for every OK-er. OKX is part of OKG, a group that brings the value of Blockchain to users around the world, through our leading products OKX, OKX Wallet, OKLink and more. About the Opportunity We're looking for a Senior Software Engineer to join our Payments Team, based in the US. Payments is where OKX meets the real financial world. Our team has built and operates the infrastructure connecting OKX to dozens of payment channels across global markets, giving users deposit and withdrawal options that are fast, convenient, and — most importantly — trustworthy. That platform moves and safeguards user assets at institutional scale, continuously, across time zones and regulatory environments. This is not a greenfield team looking for its footing. The team is established, the platform is in production at scale, and we are actively expanding — both in scope and in headcount. That combination is rare: you get the leverage of joining a growing team where your work visibly shifts the roadmap, along with the discipline that comes from a system already trusted with real money. It's also an unusually good place to learn. Payments is a domain that's hard to pick up from the outside — every market has its own rails, its own settlement behavior, its own failure modes, its own compliance expectations. Here you'll work across a wide range of payment methods and channels, and you'll build the judgment that comes from operating financial systems where the stakes are real: how to design for correctness when money is on the line, how to reconcile, how to recover, how to keep a platform observable enough that you find problems before your users do. You'll work closely with product managers, designers, and partner-facing teams, and you'll set the technical bar for the engineers around you — through design docs, code reviews, and the everyday habit of doing things properly when nobody's watching. If you like the sound of a team where the problems are genuinely hard, the standard is high, and your opinion changes the outcome, we'd like to talk. What You’ll Be Doing Design and build the core. Develop high-scale, 24/7 APIs and distributed payment services across multiple cloud providers, using Java and Spring Boot as the primary stack. Own systems end to end — from design doc through production ownership. Expand our global reach. Help integrate and scale new payment channels and methods across markets, each with its own technical, operational, and reliability characteristics. Protect user assets. Build for correctness first: consistency, idempotency, reconciliation, failure recovery, and the operational tooling that lets us stand behind every transaction. Set the technical bar. Participate actively in design and code reviews, giving and receiving direct, constructive feedback. Help evolve the standards a growing team builds on. Solve the hard problems. Investigate complex distributed-systems challenges and drive them to resolution rather than handing them off. Partner across functions. Work with product, design, and partner teams across regions to turn ambiguous requirements into shipped systems, and to unblock dependencies before they become delays. Grow the team's capability. Mentor engineers and share what you learn. Seniority here is measured in leverage, not just output. Stay curious. Keep pace with a fast-moving industry and bring the good ideas back. What you'll take away from this role Deep, practical fluency across a wide range of global payment methods and channels — knowledge that is genuinely hard to acquire anywhere else Experience designing and operating systems entrusted with substantial user assets, where correctness and recoverability are non-negotiable A track record of shipping in a regulated, high-stakes domain at real scale What We Look For In You 5+ years of backend software development experience, with a proven track record of building and operating high-availability, large-scale applications. Strong engineering fundamentals — data structures, algorithms, concurrency, and software design patterns — and the judgment to know when to reach for which. Ownership instinct. You take responsibility for outcomes, not just tickets. When something's broken or unclear, you move toward it. Ability to drive cross-team collaboration, managing complex dependencies and competing requirements without losing momentum. Excellent problem-solving skills, and comfort operating with autonomy in a fast-paced environment. Strong written and verbal communication. You can explain a complex technical trade-off to an engineer and to a non-technical stakeholder, and land it with both. Genuine interest in crypto or fintech, and in building things that make money move better. Perks & Benefits Competitive total compensation package L&D programs and Education subsidy for employees' growth and development Various team building programs and company events Wellness and meal allowances Comprehensive healthcare schemes for employees and dependants More that we love to tell you along the process! The base salary range for this position is $178,888 to $268,333. The salary offered depends on a variety of factors, including job-related knowledge, skills, experience, and market location. In addition to the salary, a performance bonus and long-term incentives may be provided as part of the compensation package, as well as a full range of medical, financial, and/or other benefits, dependent on the position offered. Applicants should apply via OKX internal or external careers site. OKX is committed to equal employment opportunities regardless of race, color, genetic information, creed, religion, sex, sexual orientation, gender identity, lawful alien status, national origin, age, marital status, and non-job related physical or mental disability, or protected veteran status. Pursuant to the San Francisco Fair Chance Ordinance, we will consider employment-qualified applicants with arrest and conviction records. Notice: All official OKX vacancies are published on this website. While roles may appear on selected third-party platforms from time to time, information on other sites may be inaccurate or outdated. If in doubt, please apply directly through our official careers website. Information collected and processed as part of the recruitment process of any job application you choose to submit is subject to OKX 's Candidate Privacy Notice .

Location: Limassol, Cyprus Workplace: remote Our team is developing a payment gateway for accepting funds from users on behalf of merchants, as well as sending funds from merchants to users. The system involves storing user payment data and is subject to PCI DSS compliance. It contains multiple integrations with payment systems, providers, and other gateways and processors, including 3DS. We're looking for a Payments Data Analyst to join our Product team and transform payment and product data into actionable insights that improve merchant success, platform performance, and business decisions. As a Payments Data Analyst, you will be a strategic partner to the Product, Merchant Solutions, Processor Integrations, and ML teams, helping drive data-informed decisions across our payment platform. You will analyze payment performance, identify trends and optimization opportunities, evaluate the impact of product initiatives, and provide recommendations that improve approval rates, payment efficiency, and merchant experience. Job Responsibilities: Monitor, analyze, and optimize payment performance across merchants, processors, payment methods, and markets. Analyze approval rates, decline patterns, payment routing performance, retry and cascading effectiveness, 3DS performance, and transaction success. Perform deep-dive analyses to identify trends, anomalies, and optimization opportunities across processors, card schemes, BINs, countries, merchants, and payment methods. Measure the impact of new product features, processor integrations, routing changes, payment optimization initiatives, and A/B experiments. Build and maintain dashboards and reports that provide actionable insights for Product, Merchant Solutions, Executive, and other business teams. Define, monitor, and improve key product and payment KPIs. Investigate merchant and processor performance to identify root causes and recommend improvements. Collaborate with Product Managers to support product discovery, feature prioritization, and success measurement. Work closely with Solution Engineers, Integration Analysts, and the ML Specialist to improve payment performance and operational efficiency. Support continuous monitoring of payment performance by identifying anomalies, emerging trends, and opportunities for optimization. Present analytical findings and recommendations in a clear, business-oriented manner to technical and non-technical stakeholders. You’ll thrive here if you have 4+ years of experience as a Data Analyst, Product Analyst, Payments Analyst, or in a similar analytical role. Advanced SQL skills, including complex queries and window functions. Experience with BI tools such as Metabase, Tableau, Power BI, Looker, or similar. Experience with Python (Pandas, Jupyter Notebook) for data analysis. Strong analytical thinking and problem-solving skills. Experience working with large datasets. Ability to translate complex data into clear business recommendations. Nice to Have Experience in FinTech, Payments, SaaS, or E-commerce. Understanding of payment processing, payment orchestration, or PSP integrations. Knowledge of payment routing, retries, cascading, and 3DS authentication. Familiarity with payment KPIs such as approval rate, conversion rate, authorization rate, and decline analysis. Understanding of fraud-related metrics, chargebacks, RDR, and risk signals. Experience working with product analytics, experimentation, and feature adoption metrics. Basic understanding of Machine Learning concepts. Conditions We know that great talent deserves great conditions, so here’s what you can expect when joining us: Full remote work. Competitive compensation with a service contract. Transparent performance reviews twice a year, with bonus opportunities and salary adjustments. An annual allowance that you can use for home office improvements, sports activities, equipment upgrades, and more—tailor it to what benefits you most. Investment in your development: paid language courses, access to various learning platforms, and a mindfulness benefit, including psychological support with 50% coverage. Career growth in a fast-scaling project with opportunities to influence technical decisions. A culture of recognition: our peer reward program celebrates contributions from across the team. This opportunity is also available for those who already live in Limassol, Cyprus. EU-based employment contract and a 3-year Cyprus work visa. Private medical insurance for you and your family, a corporate mobile plan (unlimited in Cyprus with roaming included), and interest-free support for car purchases. 50% coverage of school and kindergarten fees for your children. Fully covered sports benefits, and also access to in-house electric scooters and bike rentals. A fully equipped office in Limassol’s city center, with everything you need for deep work and collaboration. Free catering in the office and an in-house coffee bar with high-quality drinks and a health bar stocked with nutritious snacks. Benefits are provided in accordance with the company’s policies and eligibility criteria. Recruitment process HR interview (40 min); Technical interview (1 hour); Final interview (1 hour); Recommendations check; Job Offer.

Location: Belgrade; Lisbon Workplace: OnSite Aghanim is an integrated commerce, liveops automation, community engagement, and payments platform for video games.   Mobile games have traditionally depended on app stores for distribution, payments, and player relationships. We believe there is a better way. Aghanim helps game studios build direct relationships with players, sell directly, and build their future on their own terms. Today, more than 100 games worldwide are already building this future with Aghanim.   Our team brings together people across Los Angeles, New York, Seoul, Beijing, London, Lisbon, Belgrade and other locations around the globe, with deep expertise in gaming, fintech and technology. We move quickly, keep communication direct, and focus on getting things done. We believe the best people thrive when they have autonomy, ownership, and a stake in the company's success. [https://app.ashbyhq.com/api/images/user-content/4f457f07-466b-477b-b552-fbbabd850111/2de3a7cd-8843-41a9-8bbe-ceb897a42c4a/Logo%20(horizontal).svg] We are looking for a Senior Payments Manager to expand and optimize Aghanim's global payment capabilities. You will own the complete lifecycle of payment system provider relationships – from researching markets and identifying the right payment methods and partners to negotiating commercial terms, coordinating integrations and launches and managing provider performance after go-live. Key Responsibilities - Conduct market analysis to identify the most relevant payment methods, consumer preferences, regulatory considerations and market practices across different countries and regions - Develop country-level payment strategies based on customer demand, conversion potential, cost, risk and operational complexity - Research, evaluate, and select payment service providers, acquirers, alternative payment method providers, banks and other payment partners - Lead commercial negotiations covering pricing, processing fees, settlement terms, foreign exchange and service levels - Own payment-provider relationships from the initial conversation through due diligence, contracting, integration and production launch - Coordinate closely with Product, Engineering, Finance, Legal, Compliance and Operations teams to deliver successful integrations - Manage payment partners after launch, including regular business reviews, issue escalation, roadmap coordination and commercial optimization - Monitor and improve authorization rates, payment conversion, processing costs, fraud, chargebacks and overall provider performance - Stay current on developments across the global payments ecosystem, including new payment methods, regulations, provider capabilities and market trends - Maintain accurate documentation of provider coverage, commercial terms, integration status, dependencies and performance - Configure and maintain pricing, payment fees, currencies and market-specific commercial rules in internal billing system Required Qualifications - 5+ years of experience in payments - Proven experience working directly with payment service providers, acquirers, payment gateways, banks or alternative payment method providers - Experience sourcing, evaluating, negotiating with and onboarding payment partners - Strong understanding of the payment ecosystem, including acquiring, processing, card networks, payment gateways, alternative payment methods, settlement, foreign exchange, fraud and chargebacks - Strong commercial and negotiation skills, with the ability to evaluate both financial and operational tradeoffs - Analytical mindset and experience using data to assess markets, prioritize opportunities and improve payment performance - Excellent written and spoken English - High level of ownership and the ability to drive payment initiatives from start to finish Preferred Qualifications - Understanding of local payment regulations, compliance requirements and tax considerations across different markets - Experience using AI and automation tools to accelerate research, partner evaluation, documentation and analysis - Experience in the video game industry WHY JOIN US - World-class team – work alongside experienced professionals from around the globe who have built products used by millions of players - High growth, high impact – be part of a fast-growing company where ideas turn into products and reach customers in days, not months - Autonomy and ownership – we trust people to make decisions, take initiative, and drive results - Modern tools and technology – use AI, automation, and modern tools as part of your everyday work - Equity – participate in the company's growth and long-term success

Location: San Jose, California, United States Who We Are At OKX, we believe that the future will be reshaped by crypto, and ultimately contribute to every individual's freedom. OKX is a leading crypto exchange, and the developer of OKX Wallet, giving millions access to crypto trading and decentralized crypto applications (dApps). OKX is also a trusted brand by hundreds of large institutions seeking access to crypto markets. We are safe and reliable, backed by our Proof of Reserves. Across our multiple offices globally, we are united by our core principles: We Before Me , Do the Right Thing , and Get Things Done . These shared values drive our culture, shape our processes, and foster a friendly, rewarding, and diverse environment for every OK-er. OKX is part of OKG, a group that brings the value of Blockchain to users around the world, through our leading products OKX, OKX Wallet, OKLink and more. About the Opportunity Our Card and Payment engineering team builds reliable, intuitive experiences at the intersection of cards, payments, crypto, and global financial infrastructure. We partner closely with product, design, backend, risk, compliance, and business teams to make card and payment products accessible to users around the world. As a Senior Mobile Engineer on the Card and Payment team, your primary responsibility will be to own and improve the global card issuance process. You will work mainly with product and engineering partners in the US, while meeting regularly with teams in Asia to understand requirements and align delivery. We are looking for someone who is highly self-driven, takes real ownership, collaborates well, and is eager to learn the card issuing and payment businesses in depth. What You’ll Be Doing Own the end-to-end global card issuance process—from eligibility and application through card creation, activation, provisioning, and lifecycle servicing—and improve the experience as OKX expands into new markets. Learn the card issuing and payment domains deeply, and translate business, user, payment, and regulatory requirements into sound architecture, clear trade-offs, and executable delivery plans. Own features from discovery through production, with a strong focus on security, reliability, observability, maintainability, documentation, and test coverage. Drive ambiguous, cross-functional initiatives to completion with a high degree of ownership, self-direction, and sound judgment. Collaborate primarily with product and engineering teams in the US, while joining regular discussions with Asia teams to discover, clarify, and align requirements. Build with Swift, Kotlin, or Rust depending on the problem, and actively learn and adopt new languages, platforms, and tools rather than being limited to a single technology stack. Use AI coding tools throughout the development lifecycle—from exploration and implementation to testing, review, and documentation—while maintaining strong engineering judgment and accountability. Build and maintain reusable AI workflows, engineering harnesses, and technical knowledge bases that improve the entire team’s speed and quality. Review code, share context openly, mentor teammates, and make decisions that improve both engineering quality and overall team outcomes. Contribute to hiring, onboarding, and the continuous improvement of team practices. What We Look For In You B.S. or M.S. in Computer Science, or equivalent practical experience. Proven experience shipping and operating production-quality mobile applications, with deep expertise in iOS or Android. Strong proficiency in at least one of Swift, Kotlin, or Rust, with a demonstrated willingness to learn and contribute in unfamiliar languages and technology stacks. Exceptional ownership and self-direction, with the judgment to make pragmatic decisions and drive ambiguous work to completion. Demonstrated, regular use of AI coding tools with measurable impact on delivery speed, code quality, or engineering effectiveness. A team-first mindset: you communicate openly, share knowledge, support peers, and align technical decisions around the best outcome for the team and product. Genuine curiosity about card issuing and payment businesses, plus the ability to communicate technical decisions clearly with partners across the US and Asia. Professional proficiency in English and Mandarin Chinese is required. Nice to Haves Hands-on experience with global card issuance flows, card processing, payments, fintech, crypto, or other high-trust financial products. Experience launching products across multiple countries or regulatory environments. Knowledge of mobile security, payment authentication, risk controls, or transaction lifecycle design. Experience improving mobile architecture, shared components, developer tooling, or engineering productivity at team scale. Experience mentoring engineers or leading cross-functional technical initiatives. Perks & Benefits Competitive total compensation package L&D programs and Education subsidy for employees' growth and development Various team building programs and company events Wellness and meal allowances Comprehensive healthcare schemes for employees and dependants More that we love to tell you along the process! OKX Statement OKX is committed to equal employment opportunities regardless of race, color, genetic information, creed, religion, sex, sexual orientation, gender identity, lawful alien status, national origin, age, marital status, and non-job related physical or mental disability, or protected veteran status. Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records. The salary range for this position is $178,888 to $268,333. The salary offered depends on a variety of factors, including job-related knowledge, skills, experience, and market location. In addition to the salary, a performance bonus and long-term incentives may be provided as part of the compensation package, as well as a full range of medical, financial, and/or other benefits, dependent on the position offered. Applicants should apply via OKX internal or external careers site. Notice: All official OKX vacancies are published on this website. While roles may appear on selected third-party platforms from time to time, information on other sites may be inaccurate or outdated. If in doubt, please apply directly through our official careers website. Information collected and processed as part of the recruitment process of any job application you choose to submit is subject to OKX 's Candidate Privacy Notice .

Обзор продукта: Мы развиваем международную платёжную платформу, объединяющую Payment Gateway, мгновенный Open Banking, карточный эквайринг и альтернативные способы оплаты. Наш продукт позволяет подключать мерчантов по всему миру через собственное API и интеграции с ведущими платёжными платформами. Задачи: • Формировать и развивать продуктовую стратегию платёжной платформы; • Управлять полным жизненным циклом продукта: от исследования рынка до масштабирования; • Развивать направления Payment Gateway, Open Banking, карточного процессинга и API-продуктов; • Формировать и приоритизировать roadmap; • Работать с командами разработки, бизнеса, продаж, аккаунтинга, операций и интеграций; • Искать новые продуктовые возможности и направления развития; • Формировать требования и user stories, контролировать качество реализации; • Анализировать продуктовые метрики и эффективность продукта; • Развивать партнёрскую экосистему (PSP, банки, Open Banking, APM, эквайеры); • Улучшать клиентский опыт и оптимизировать платёжные процессы. Требования: • Опыт в Product Management от 4–5 лет; • Обязательный опыт работы в Payment Gateway, PSP, Acquiring, Open Banking, Wallets, APM; • Понимание жизненного цикла платёжной транзакции; • Опыт работы с API и понимание технической архитектуры современных финтех-продуктов; • Английский язык для общения с международными партнёрами. Будет плюсом: • Опыт работы с международными платежами и High-Risk-индустриями; • Опыт запуска новых платёжных методов или выхода на новые рынки; • Понимание PCI DSS, KYC/KYB, AML, PSD2/Open Banking; • Опыт взаимодействия с международными PSP, банками и эквайерами. Условия: • Возможность определять стратегию международного платёжного продукта; • Высокая степень самостоятельности и быстрый цикл принятия решений; • Полностью удалённый формат работы; • Работа в международной команде с современным технологичным продуктом.

Location: Remote Poland At Affirm, we exist for the moments that matter—giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most. We are reinventing credit cards in the most transparent way possible. We are working directly with card issuers to change how credit is used throughout the world, creating new types of cards that work for both their everyday lives and large purchases with extremely straightforward, flexible terms. You'll work across stacks and across the company, working both in just-in-time transaction processing that has to take place in milliseconds, along with our ledgering and reconciliation systems in post-transaction processing. This is some of the more difficult, exciting, experimental engineering work in Affirm. Join us and our team in Spain and Poland to help us revolutionize payments! What You'll Do · You will be responsible for owning and delivering quarterly goals for your team, leading engineers on your team through ambiguity to solve open-ended problems, and ensuring that everyone is supported throughout delivery. · You will support your peers and stakeholders in the product development lifecycle by collaborating with product management, design & analytics by participating in ideation, articulating technical constraints, and partnering on decisions that properly consider risks and trade-offs. · You will proactively identify project, process, technology or business issues, advocate for them, and lead in solving them. · You will support the operations and availability of your team’s artifacts by creating and monitoring metrics, escalating when needed, and supporting “keep the lights on” & on-call efforts. · You will foster a culture of quality and ownership on your team by setting or improving code review and design standards for your team, and advocating for them beyond your team through your writing and tech talks. · You will help develop talent on your team by providing feedback and guidance, and leading by example. What We Look For · You have a total of 4+ years of experience as a software engineer. · You are experienced in designing, developing and launching backend systems at scale technologies like Python, Kotlin, AWS, MySQL, and Kubernetes. · You have experience shipping front end applications · You have experience defining a technical plan for the delivery of a significant feature or system component with an elegant, simple and extensible design. You write high quality code that is easily understood and used by others. · You are proficient at making significant changes in a large code base, and have developed a suite of tools and practices that enable you and your team to do so safely. · Your experience demonstrates that you take ownership of your growth, proactively seeking feedback from your team, your manager, and your stakeholders. · You have strong verbal and written communication skills that support effective collaboration with our global engineering team. Total rewards We believe the people building honest financial products at Affirm should share in its success. That's why our total rewards are designed to support your health, growth, financial well-being, and future. In service of our mission, we reward employees through a combination of base pay, equity (from parent company), and comprehensive benefits. Base Pay Grade - N 308,000 zł  -  428,000 zł Employees new to Affirm typically come in at the start of the pay range. Affirm focuses on providing a simple and transparent pay structure which is based on a variety of factors, including location, experience and job-related skills. Base pay is part of a total compensation package that may include monthly stipends for health, wellness and tech spending, and benefits (including 100% subsidized medical coverage, dental and vision for you and your dependents). In addition, the employees may be eligible for equity rewards offered by Affirm Holdings, Inc. (parent company). Base pay ranges and placement within those ranges are determined based on several factors, including role, experience, and job-related skills. In addition to base pay, all employees in this role are eligible to receive equity from the parent company each year. This means as Affirm’s parent company grows, employees have the opportunity to share in that growth financially. Equity Grade - 4 (awarded in US Dollars) Affirm Holdings, Inc. Equity Grade example Equity grade: 4 New hire equity: $32,000-$48,000 Annual Refresh: $10,000 Reward equity: $0-$150,000 Affirm also provides flexible spending wallets to all employees for technology and wellbeing related needs, which are reimbursable up to 1390 zł per month. In addition to your compensation, our comprehensive benefits are designed to support you and the people who matter most. Benefits include: Competitive paid time off, paid public holidays, and additional paid Away Days to rest and recharge. Comprehensive private healthcare through Lux Med's Platinum package. A MultiSport card to support your health and well-being. Learning and development programs to help you grow professionally. Family healthcare support through Maven and parental leave support through Parentaly. Mental well-being support through Lyra, including up to 12 confidential counseling or coaching sessions each year for you and your household members. Financial well-being support through Northstar, with unlimited access to Certified. Financial Advisors and planning tools at no cost to you. Employee Resource Groups (ERGs) that foster connection and inclusion. Eligibility for creative tax benefits, subject to applicable law, role, and company policy. Location - Remote Poland The majority of our roles can be located anywhere in Poland. **This job description is not a contractual document, and is not intended to have binding force.** #LI-Remote Remote-first with flexibility built in Affirm is proud to be a remote-first company. Most roles can be done from almost anywhere within the country of employment. Some positions may occasionally require in-person work at an Affirm office, and a few are office-based due to the nature of the work. All new hires will be invited to attend an in-person onboarding experience. Benefits designed for you Our benefits reflect our commitment to care, transparency, and flexibility. Here are a few highlights: Health coverage at no cost: We cover 100% of premiums for employees and their dependents. Spending stipends: Monthly stipends support your tech setup, and the ability to choose health and wellness options that are right for you. Time off to recharge: Flexible time off and generous holiday calendars help you rest when you need to. Own a piece of what you build: Our employee stock purchase plan (ESPP) lets you buy Affirm stock at a discount. We’re committed to providing an inclusive interview process, including accommodations for candidates with disabilities. If you need support, we’re happy to help. For positions based in San Francisco or Los Angeles: Affirm considers qualified applicants with arrest and conviction records, as required by law. By clicking "Submit Application," you acknowledge that you have read Affirm's Global Candidate Privacy Notice and consent to the use of your personal information as described.

Location: Remote Spain At Affirm, we exist for the moments that matter—giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most. We are reinventing credit cards in the most transparent way possible. We are working directly with card issuers to change how credit is used throughout the world, creating new types of cards that work for both their everyday lives and large purchases with extremely straightforward, flexible terms. You'll work across stacks and across the company, working both in just-in-time transaction processing that has to take place in milliseconds, along with our ledgering and reconciliation systems in post-transaction processing. This is some of the more difficult, exciting, experimental engineering work in Affirm. Join us and our team in Spain and Poland to help us revolutionize payments! What You'll Do · You will be responsible for owning and delivering quarterly goals for your team, leading engineers on your team through ambiguity to solve open-ended problems, and ensuring that everyone is supported throughout delivery. · You will support your peers and stakeholders in the product development lifecycle by collaborating with product management, design & analytics by participating in ideation, articulating technical constraints, and partnering on decisions that properly consider risks and trade-offs. · You will proactively identify project, process, technology or business issues, advocate for them, and lead in solving them. · You will support the operations and availability of your team’s artifacts by creating and monitoring metrics, escalating when needed, and supporting “keep the lights on” & on-call efforts. · You will foster a culture of quality and ownership on your team by setting or improving code review and design standards for your team, and advocating for them beyond your team through your writing and tech talks. · You will help develop talent on your team by providing feedback and guidance, and leading by example. · On-Call Rotation - There would be an on-call rotation for this role as a requirement. What We Look For · You have a total of 4+ years of experience as a software engineer. · You are experienced in designing, developing and launching backend systems at scale technologies like Python, Kotlin, AWS, MySQL, and Kubernetes. · You have experience shipping front end applications · You have experience defining a technical plan for the delivery of a significant feature or system component with an elegant, simple and extensible design. You write high quality code that is easily understood and used by others. · You are proficient at making significant changes in a large code base, and have developed a suite of tools and practices that enable you and your team to do so safely. · Your experience demonstrates that you take ownership of your growth, proactively seeking feedback from your team, your manager, and your stakeholders. · You have strong verbal and written communication skills that support effective collaboration with our global engineering team. Compensation & Benefits Pay Grade - N Equity Grade - 4 Employees new to Affirm typically come in at the start of the pay range. Affirm focuses on providing a simple and transparent pay structure which is based on a variety of factors, including location, experience and job-related skills. Base pay is part of a total compensation package that may include monthly stipends for health, wellness and tech spending, and benefits (including 100% subsidized medical coverage, dental and vision for you and your dependents). In addition, the employees may be eligible for equity rewards offered by Affirm Holdings, Inc. (parent company). ESP base pay range per year: €86,000 - €122,000 Additional benefits include: • Flexible Spending Wallets for tech, food and lifestyle • Away Days - wellness days to take off work and recharge • Learning & Development programs • Parental benefits • Employee Resource & Community Groups Location - Remote Spain We are able to offer visa sponsorship for this role, but do require that someone is based in Spain for the role. #LI-Remote Remote-first with flexibility built in Affirm is proud to be a remote-first company. Most roles can be done from almost anywhere within the country of employment. Some positions may occasionally require in-person work at an Affirm office, and a few are office-based due to the nature of the work. All new hires will be invited to attend an in-person onboarding experience. Benefits designed for you Our benefits reflect our commitment to care, transparency, and flexibility. Here are a few highlights: Health coverage at no cost: We cover 100% of premiums for employees and their dependents. Spending stipends: Monthly stipends support your tech setup, and the ability to choose health and wellness options that are right for you. Time off to recharge: Flexible time off and generous holiday calendars help you rest when you need to. Own a piece of what you build: Our employee stock purchase plan (ESPP) lets you buy Affirm stock at a discount. We’re committed to providing an inclusive interview process, including accommodations for candidates with disabilities. If you need support, we’re happy to help. For positions based in San Francisco or Los Angeles: Affirm considers qualified applicants with arrest and conviction records, as required by law. By clicking "Submit Application," you acknowledge that you have read Affirm's Global Candidate Privacy Notice and consent to the use of your personal information as described.

Location: Brazil - Remote About Us Established in 2018, Bybit is one of the world’s leading cryptocurrency exchanges and digital financial platforms, serving over 80 million users across more than 200 countries and regions. Powered by world-class technology and a user-first mindset, Bybit delivers a seamless ecosystem across trading, payments, wealth management, custody, institutional services, and Web3 — connecting users to the future of digital finance. Our core values define how we build. We listen, care and improve to create products and experiences that put users first. Backed by a global team of ambitious builders, problem-solvers, and innovators, we foster a high-performance and fast-moving environment where talent is empowered to drive real impact at the global scale. Supported by 24/7 multilingual customer service and a strong commitment to innovation, we are shaping the future of finance through technology, collaboration, and bold execution. Today, Bybit is recognized as one of the most trusted and transparent platforms in the digital asset industry, continuing to expand its global presence while building the infrastructure for the next generation of financial services. Role Mission As a Fiat Operations Specialist, you will be responsible for driving the integration of local payment methods that allow users to deposit and withdraw BRL. You will collaborate closely with product, compliance, and tech teams to improve the fiat on&off-ramp experience for users. A key aspect of this role is working with the product team to identify opportunities to build the smooth user experience, ensuring that payment flows are intuitive, seamless, and aligned with customer and regulatory needs. Key Responsibilities Own and manage BRL on/off-ramp channels end-to-end, ensuring availability, performance, and reliability. Serve as the primary point of contact for brazilian banks and payment vendors, payment service providers (PSPs), card processors, and other fiat partners, managing relationships, negotiations, and day-to-day communication to ensure reliable and efficient payment channels. Lead and coordinate technical integrations with local banks and payment gateways, working alongside engineering and product teams to ensure seamless implementation and ongoing maintenance of payment infrastructure; Ensure seamless user access to fiat products, minimizing friction in deposits and withdrawals. Monitor and manage the end-to-end operational process for fiat on&off-ramps, ensuring smooth transactions and rapid issue resolution for users. Identify emerging trends in user preferences, and regulatory changes in Brazil to adapt our platform accordingly. Work closely with Customer Support to resolve user issues related to deposits, withdrawals, and transaction status, including handling workflows and tickets raised by the CS team that are related to fiat operations. Maintain strong relationships with banking partners, payment service providers (PSPs), card processors, and other fiat partners. Ensure liquidity and operational stability of BRL fiat flows and payment channels. Use data and metrics to optimize payment integrations, minimize friction for users, and enhance the overall user experience; Work closely with the product team to improve the overall user experience of fiat on&off-ramp processes. Provide insights and feedback based on user behavior, transaction data, and customer feedback to inform product enhancements that improve payment flow, reduce friction, and increase user satisfaction. Support fiat on/off-ramp operations for additional currencies (e.g., ARS and others), as applicable. Monitor daily fiat operations, ensuring accurate processing, timely settlements, and proper reconciliation between internal systems and external partners. Coordinate card and payment infrastructure partners for Brazilian users, ensuring smooth operation of payment flows, supporting issue resolution and complaints handling, and actively participating in the design and improvement of these processes. Maintain and improve operational controls (limits, reconciliation routines, cut-off times, monitoring alerts). Identify, investigate, and resolve operational incidents, ensuring proper escalation and root cause analysis. Keep SOPs, runbooks, and operational documentation up to date and aligned with actual processes. Collaborate cross-functionally with Product, Technology, Risk, and Compliance teams to improve fiat infrastructure and processes. Act as a key advocate for the user experience, ensuring that payment-related touchpoints are designed to be intuitive, frictionless, and aligned with user needs and expectations. Requirements Experience: 3+ years of experience in payment operations, banking, fintech in Brazil. Payments&Banking Background: Demonstrated experience in the payments or banking industry, with a strong understanding of the brazilian financial ecosystem, local payment rails, and banking operations; Technical Integration Experience: Hands-on experience coordinating technical integrations with banks, payment providers; ability to bridge communication between technical and business teams. Regulatory Awareness: Familiarity with brazilian financial regulations, anti-money laundering practices, KYCcompliance, and payment industry standards. Project Management: Strong project management skills, with the ability to lead multiple initiatives and meet deadlines in a fast-paced environment. Problem Solving: Analytical thinker with a proactive approach to identifying issues and implementing effective solutions. Communication Skills: Excellent verbal and written communication skills, with the ability to work cross-functionally and liaise with internal and external stakeholders including banks and vendors. Languages: Fluency in both English and Portuguese is required (written and verbal). Additional languages are a plus. Why Join Us At Bybit, we are committed to fostering a supportive and enriching work environment. Our benefits include: - Study Growth Fund: We support your professional development and continuous learning. - Internal Events: Participate in regular team-building activities, workshops, and events designed to promote collaboration and innovation. - Global Collaboration: Be part of a diverse, international team, working alongside colleagues from around the world. - Career Advancement: Access opportunities for growth and advancement within a rapidly expanding global company. - Internal Mobility: Grow with us- Your long-term development is important to us. We offer internal job opportunities to help build your career path.

Location: Palo Alto, California Aptos is a people-first blockchain on a mission to help billions of people achieve universal and fair access to decentralized assets in a safe and scalable way. Founded by some of the original creators and maintainers that researched, designed, and built the Diem blockchain to serve this purpose, we have dedicated several years toward this mission. We believe the open-source Diem technology we have developed is an important foundation of a safe and scalable web3 world where everyone has more equitable opportunities to grow and access financial assets with lower fees and fewer intermediaries. Aptos (Ohlone for "The People") encompasses our mission and ethos for why we build. About this role Aptos is a high-performance Layer 1 designed for financial services: sub-second settlement at sub-cent cost, production reliability institutions build on, and native stablecoins including assets exclusive to the network. We are consolidating our commercial efforts into one financial services company — payments, tokenization, and trading — and payments is the first chartered business: a ring-fenced unit with its own P&L, an exclusive global settlement partnership already signed, first-party products already shipped (keyless onboarding, multisig treasury, confidential payments), and clear evidence gates at 90 days, 6 months, and 24 months. This role is the founding technical leader of that unit. You are hire number one of the engineering team, and the build you lead defines the business. What you'll own The Aptos Payment API. Spec, ship, and run the single API businesses integrate against — wrapping partner infrastructure today, with an orchestration engine routing across a licensed partner network as the business earns it. You write the spec bottoms-up from partner and client requirements. Partner-facing engineering. You are the technical face of the unit: requirements intake, integration leadership, and technical diligence with banks, EMIs, PSPs, stablecoin issuers, and e-wallet platforms. You can run those calls alone and write the requirements doc after. The trust infrastructure. Revenue attribution and reconciliation (the system that proves which volume is ours), a single-window KYC/KYB integration, a testnet sandbox that lets any prospect try the stack before compliance onboarding, and a native-asset-only settlement policy — no bridges. Integration with the trading stack. Our trading team builds the RFQ liquidity and tokenized-FX systems; you own the payments side of that seam — routing corridor FX through their venue, defining the API contract between the two systems, and making the handoff invisible to clients. The team and the calls. Hire and lead the first two engineers; grow the team only as revenue triggers fire. Make the build-vs-buy decisions (orchestration components, KYC tooling) with written memos at each gate. Your first 90 days Publish the Payment API v1 spec and ship the testnet sandbox. Stand up revenue attribution v1 and harden USDT/USDC settlement rails to production grade. Ship the first client integration hands-on, end to end. Draft the orchestration build-vs-buy memo that frames the unit's biggest technical decision. These are not aspirations — they are the unit's first gate, and the role's report card is the engineering column of the business's scorecard. What we're looking for 8+ years building payment infrastructure at production scale — PSP or orchestrator-class systems: cross-border rails, on/off-ramps, virtual accounts, reconciliation. Hands-on chain-native settlement experience: stablecoin rails, ramp integrations, wallet infrastructure. Move or Rust a plus; strong engineering judgment on any stack a must. Front-facing gravitas: banks, issuers, and regulated partners treat you as a peer. You've led external technical relationships, not just internal roadmaps. A product engineer's instincts: you build bottoms-up from what clients and partners actually need, and you treat existing internal products as assets to resell — not constraints to build around. Player-coach by default: you ship code, then hire people better than you at parts of it. Nice to have APAC corridor experience — e-wallet ecosystems, QR rails, regional licensing landscapes. Enough FX and market-structure fluency to be a strong counterpart to the trading team on the RFQ integration. Working familiarity with payments regulation (money transmission, MiCA, Singapore PS Act) — enough to design with counsel, not practice law. A prior 0→1: founding engineer, first technical hire, or owner of a product line from blank page to revenue. Why this role is unusual Distribution is solved before you start. An exclusive settlement partnership routes committed volume to the network — you build against real flow, not hoped-for flow. The business is chartered. Written gates, a stop condition, and growth triggers tied to revenue — you'll always know exactly where the business stands and what your work must prove next. The scope compounds. What starts as one API becomes an orchestration network and a tokenized-currency framework, integrated with a trading venue's liquidity — the technical agenda grows with every gate the business clears. You define the org. Every engineering hire after you is your call, made against revenue evidence. The base salary range for this full-time position is $160k - $260k. The range displayed on each job posting reflects the minimum and typical maximum target for new hire salaries for the position of a candidate based in the Bay Area at any level. We do hire exceptionally talented professionals with decades of experience in their field. As such, our range may be higher than what is displayed. Our base salary ranges are determined by experience and location, and we hire at all levels for multiple roles. Within the range, individual pay is determined by work location, job-related skills demonstrated during the interviews, working experience, and relevant education or training. Please note that the compensation details listed in role postings reflect the base salary only and do not include equity, tokens, or benefits. #LI-PG1 Our Benefits 100% insurance premium coverage for medical, dental, and vision for you and your dependents (US Employees) Equipment of your choice Flexible vacation time, 11 holidays, and floating company days off Competitive Salary Protocol Token Grants 401k matching (US Employees) Fun and inclusive in-person and digital events Aptos is committed to diversity in the workplace, and we’re proud to be an Equal Opportunity Employer. We do not hire on the basis of race, color, religion, creed, gender, national origin, citizenship, age, disability, veteran status, marital status, pregnancy, parental status, sex, gender expression or identity, sexual orientation, or any other basis protected by local, state or federal law. All employment is decided based on qualifications, merit, and business need. We are committed to providing a safe and secure hiring process for all applicants. Unfortunately, there are individuals who may attempt to impersonate Aptos or our employees for fraudulent purposes. To protect yourself, please be aware of the following: We will never ask you for payment of any kind during the application or onboarding process, including fees for background checks, training, or equipment. We will always communicate with you using our official company email domain. We will never request your personal financial information, such as your social security number or bank account details, during the initial application stages or via email or a video/voice call when onboarding.

Location: Hong Kong, Hong Kong SAR About the OKX Card Team The OKX Card Team builds the payment infrastructure connecting digital assets to global commerce. Partnering with major card networks like Visa and Mastercard, we power the OKX crypto card platform. Our team handles the full card lifecycle and payment stack—from instant issuance and real-time transaction authorization (Auth) to settlement, ledger management, and card growth engines. We also actively embrace AI-assisted development to build fast, scale cleanly, and maximize engineering velocity. Key Responsibilities - Core Card Services: Develop and maintain reliable backend microservices in Java for card issuing, authorization pipelines, and settlement clearing. - Workflow Orchestration: Utilize Temporal to manage complex, multi-step transaction lifecycles and resilient distributed state machines. - Data & Ledgers: Design and optimize SQL schemas and queries to ensure exactness and speed across high-concurrency transaction ledgers. - AI-Enhanced Velocity: Integrate modern AI development tools into your daily workflow to speed up coding, unit testing, and problem-solving. - Growth & Features: Deliver features for promotional campaigns, rewards, and card lifecycle management to support user growth. Qualifications - Technical Core: 1–3 years of backend engineering experience proficient in Java (Spring Boot) and relational databases via SQL. - Workflow Management: Direct experience or solid understanding of distributed workflow tools like Temporal (or Cadence). - Card & Fintech Domain: Strong background in Fintech with a solid grasp of card transaction mechanics (Visa/Mastercard networks, Auth, clearing, and issuing workflows). - AI Tooling Mindset: Proactive in using AI development tools (e.g., Copilot, AI assistants) to boost output and maintain high code quality. - Soft Skills: Highly self-driven, quick learner, and excited to build secure financial products. Nice to Have - Experience working directly with Card Issuing processors or Payment Service Providers (PSPs). - Broad understanding of Web3 concepts or crypto-to-fiat conversion flows. - Exposure to cloud-native stacks (Docker, Kubernetes, AWS/GCP). Notice: All official OKX vacancies are published on this website. While roles may appear on selected third-party platforms from time to time, information on other sites may be inaccurate or outdated. If in doubt, please apply directly through our official careers website. Information collected and processed as part of the recruitment process of any job application you choose to submit is subject to OKX 's Candidate Privacy Notice .

Location: London Workplace: OnSite Company Description We’re http://checkout.comCheckout.com http://Checkout.com. You might not know our name, but companies like eBay, Spotify, Klarna, Uber, and Sony do, because we’re behind many of the digital experiences you use every day. We are where the world checks out, enabling over 10 billion transactions yearly for more than one billion global shoppers. Whether you want to book a holiday, order food, renew a subscription, or check out online, there’s a good chance our tech powers the payments behind the scenes. Our platform helps the most ambitious businesses deliver effortless digital experiences, at scale. If you want to do career-defining work, you’ve come to the right place. We move fast, think globally, and believe great teams are built by hiring exceptional people with conviction, curiosity, and the desire to make an impact. With 20 offices across six continents and London as our HQ, we’re shaping the future of fintech – and we’re just getting started. How you’ll make an impact - Deliver expertise and guidance to our key merchants by crafting optimal payments strategy. - Conduct deep-dive exploratory data analysis to uncover insights and anomalies - Conduct experiments and A/B tests to improve performance, including ML based solutions. - Develop cutting-edge automation tools aimed at monitoring and optimising merchants’ performance. - Implement robust measurements to assess how proposed solutions impact merchants' performance and revenue, providing valuable insights for both internal and external ROI. - Collaborate with various teams across the company to ensure an outstanding merchant experience and feed requirements for product development - Elevate internal awareness, particularly within the executive team, regarding the full spectrum of merchant services and benefits provided - Drive a culture of cross-team learning and knowledge sharing   What we’re looking for - 3+ years in an analytical role either at a Fintech or Consultancy, using analysis to make business recommendations - A huge advantage if you have previous experience working as Payment Analyst/Expert - Data driven approach, by clearly defining success metrics and measuring progress against them - SQL / Python knowledge to extract & analyse large data from our Data Warehouse - Good knowledge of today’s major e-commerce and payments technologies and trends - Customer driven and able to establish robust relationship with assigned customer base Additional Information Bring all of you to work We create the conditions for high performers to thrive, through real ownership, fewer blockers, and work that makes a difference from day one. Here, you’ll move fast, take on meaningful challenges, and be recognized for the impact you deliver. It’s a place where ambition gets met with opportunity, and where your growth is in your hands. We work as one team, and we back each other to succeed. So whatever your background or identity, if you’re ready to grow and make a difference, you’ll be right at home here. It’s important we set you up for success and make our process as accessible as possible. So let us know in your application, or tell your recruiter directly, if you need anything to make your experience or working environment more comfortable. Life at Checkout.com http://Checkout.com We understand that work is just one part of your life. Our hybrid working model offers flexibility, with three days per week in the office to support collaboration and connection. Curious about what it’s like to be part of our team? Visit our Careers Page https://www.checkout.com/careers to learn more about our culture, open roles, and what drives us. For a closer look at daily life at Checkout.com http://Checkout.com, follow us on LinkedIn https://www.linkedin.com/company/checkout/life/ and Instagram https://www.instagram.com/checkout_com/

Location: San Jose, California, United States Who We Are At OKX, we believe that the future will be reshaped by crypto, and ultimately contribute to every individual's freedom. OKX is a leading crypto exchange, and the developer of OKX Wallet, giving millions access to crypto trading and decentralized crypto applications (dApps). OKX is also a trusted brand by hundreds of large institutions seeking access to crypto markets. We are safe and reliable, backed by our Proof of Reserves. Across our multiple offices globally, we are united by our core principles: We Before Me , Do the Right Thing , and Get Things Done . These shared values drive our culture, shape our processes, and foster a friendly, rewarding, and diverse environment for every OK-er. OKX is part of OKG, a group that brings the value of Blockchain to users around the world, through our leading products OKX, OKX Wallet, OKLink and more. About the Opportunity As the Product Manager, you will be responsible to discover new markets and revenue opportunities and innovate new products to address the market needs. Act as an internal champion to build consensus and influence senior management for new product ideas. Identify, define, implement and instrument market research, product design, product implementation and product release processes. Define, build and scale OKX's payment systems that powers money movement globally to help our customers gain access to a wide array of crypto assets. The scope of this role includes defining & managing product roadmaps, features including user experience and end to end integration with local & international payment providers while proactively managing the risk associated with your product. Tracking KPIs and driving growth of your product features is at the core of PM’s at OKX, while collaborating with multiple key stakeholders like designers, engineering, legal, risk, compliance, marketing, customer support & finance across the organization and get them aligned on your product roadmap and deliverables. You’ll be joining our growing product team to help define the future of our company and product. If you are an entrepreneurial product leader, who doesn’t hesitate to propose bold ideas and roll up your sleeves to put them into action, this role will be a great fit for you. What You’ll Be Doing Be the owner of your payment products (ACH, Cards, Wire, SEPA, FAST, PIX, etc), you truly own it! Define & drive every aspect of your product from developing the roadmap/backlogs/iterations in order to hit your goals & KPIs Outline features, technical integration requirements, work with your squad of product designers, content writers, data analysts and engineers to bring your product to life You verify your squad deliverables, align your customer support teams including all key stakeholders for any feature release/announcements to your retail users Manage your product dashboard by tracking all your product data metrics Drive adoption, usage of your products working closely with marketing, risk teams, keep close eye on customer frictions and voice of customer to optimize your product experience Ensure that there are effective internal tools in place for any new product launch What We Look For In You Product management experience in the payments space with past experience in payments clearing, settlement and fiat custody Visionary for trending and future crypto market needs and payments industry changes Product innovator that can achieve business goals with unique product offering and business models Previous experience designing and building payments systems and understanding of risk management associated with these payment options Entrepreneurial mindset: Experience working in a fast-paced environment with competing resources and priorities. Opinionated and willing to make calls with limited information. Ability to navigate through ambiguity to advocate for resources Excellent written and verbal communications skills; ability to translate strategy into clear and actionable plans for product development, engineering, design and marketing Technical, comfortable with delving into the product, the platform and the implementation details. Able to engage with engineering beyond just product and user experience needs; willing to roll up sleeves and design scalable and extensible solutions Metrics driven with proficiency in identifying, defining, tracking and acting upon metrics Experience identifying KPIs and working with engineering and analytics on instrumentation and monitoring Familiarity with cryptocurrency exchanges and passion for crypto and blockchain innovations Bachelor's degree in Computer Science, Engineering, or a related technical discipline Nice to Haves Past experience working with payments systems or crypto platforms is strongly preferred Perks & Benefits Competitive total compensation package L&D programs and Education subsidy for employees' growth and development Various team building programs and company events Wellness and meal allowances Comprehensive healthcare schemes for employees and dependants OKX Statement OKX is committed to equal employment opportunities regardless of race, color, genetic information, creed, religion, sex, sexual orientation, gender identity, lawful alien status, national origin, age, marital status, and non-job related physical or mental disability, or protected veteran status. Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records. The salary range for this position is $214,666 to $321,999 The salary offered depends on a variety of factors, including job-related knowledge, skills, experience, and market location. In addition to the salary, a performance bonus and long-term incentives may be provided as part of the compensation package, as well as a full range of medical, financial, and/or other benefits, dependent on the position offered. Applicants should apply via OKX internal or external careers site. Notice: All official OKX vacancies are published on this website. While roles may appear on selected third-party platforms from time to time, information on other sites may be inaccurate or outdated. If in doubt, please apply directly through our official careers website. Information collected and processed as part of the recruitment process of any job application you choose to submit is subject to OKX 's Candidate Privacy Notice .

Location: San Francisco, CA | New York City, NY | Seattle, WA About Anthropic Anthropic’s mission is to create reliable, interpretable, and steerable AI systems. We want AI to be safe and beneficial for our users and for society as a whole. Our team is a quickly growing group of committed researchers, engineers, policy experts, and business leaders working together to build beneficial AI systems. About the role The Fraud Prevention team protects Anthropic's payment and monetization surfaces from financial abuse — keeping fraud losses, dispute rates, and network monitoring exposure in check while preserving a smooth experience for legitimate customers. As a software engineer on this team, you will build the systems that make risk decisions in real time, manage the dispute and chargeback lifecycle, and detect monetization abuse across subscriptions, in-app purchases, and promotions. The ideal candidate can see things from attackers' perspectives, anticipate their responses to countermeasures, and never loses sight of the fact that a false positive here is a paying customer. Payments fraud is more externally coupled than most trust and safety work — you'll collaborate closely with finance, support, and legal teams internally, and with payment processors and platform partners externally. Responsibilities: Design and build real-time risk decisioning that scores transactions at authorization time, balancing fraud loss, approval rates, and latency constraints Build tooling and automation for the dispute and chargeback lifecycle, from review queues to evidence collection and loss reporting Engineer fraud signals at scale — device fingerprinting, BIN and issuer signals, velocity features, and cross-account linkage — and detect monetization abuse across subscriptions, trials, promotions, and in-app purchases Own a portfolio of metrics — loss rate, dispute rate, authorization approval impact, and false-positive rate — rather than optimizing any single number Lead investigations into emerging fraud patterns, building multi-layered defenses designed for attacker adaptation rather than point-in-time rules Work cross-functionally with finance, support, legal, and data science, and with external payment processors and platform partners Minimum Qualifications: Proficiency in Python, SQL, and data analysis tools Experience building or operating fraud, risk, or abuse detection systems in production Strong communication skills and ability to explain complex technical tradeoffs to non-technical stakeholders Preferred Qualifications: 8+ years of industry software engineering experience, with a focus on payments fraud or risk Fluency with payments rails: card networks, payment service providers (e.g., Stripe, Adyen), in-app purchase platforms (Apple, Google), refund flows, and the chargeback and dispute lifecycle Direct experience combating fraud typologies such as card testing, stolen-card monetization, refund and chargeback abuse, subscription and trial abuse, promotional abuse, and friendly fraud Understanding of fraud loss accounting — fraud loss vs. dispute fees vs. card network monitoring programs (e.g., VDMP, i VFMP, Mastercard ECP) — and why chargeback rate thresholds carry existential stakes Experience building hybrid rules-and-ML risk systems: real-time scoring at authorization plus post-authorization review workflows Experience at a marketplace or subscription business, or on a processor-side or issuer-side risk team The annual compensation range for this role is listed below. For sales roles, the range provided is the role’s On Target Earnings ("OTE") range, meaning that the range includes both the sales commissions/sales bonuses target and annual base salary for the role. Annual Salary: $320,000 — $485,000 USD Logistics Minimum education: Bachelor’s degree or an equivalent combination of education, training, and/or experience Required field of study: A field relevant to the role as demonstrated through coursework, training, or professional experience Minimum years of experience: Years of experience required will correlate with the internal job level requirements for the position Location-based hybrid policy: Currently, we expect all staff to be in one of our offices at least 25% of the time. However, some roles may require more time in our offices. Visa sponsorship: We do sponsor visas! However, we aren't able to successfully sponsor visas for every role and every candidate. But if we make you an offer, we will make every reasonable effort to get you a visa, and we retain an immigration lawyer to help with this. For roles performing work in California: We will consider for employment all qualified applicants, including those with arrest or conviction records or criminal histories, in a manner consistent with the requirements of applicable state and local laws, including the San Francisco Fair Chance Ordinance, the City of Los Angeles’ Fair Chance Initiative for Hiring Ordinance, the Los Angeles County Fair Chance Ordinance for Employers, and the California Fair Chance Act. We encourage you to apply even if you do not believe you meet every single qualification. Not all strong candidates will meet every single qualification as listed.  Research shows that people who identify as being from underrepresented groups are more prone to experiencing imposter syndrome and doubting the strength of their candidacy, so we urge you not to exclude yourself prematurely and to submit an application if you're interested in this work. We think AI systems like the ones we're building have enormous social and ethical implications. We think this makes representation even more important, and we strive to include a range of diverse perspectives on our team. Your safety matters to us. To protect yourself from potential scams, remember that Anthropic recruiters only contact you from @anthropic.com email addresses. In some cases, we may partner with vetted recruiting agencies who will identify themselves as working on behalf of Anthropic. Be cautious of emails from other domains. Legitimate Anthropic recruiters will never ask for money, fees, or banking information before your first day. If you're ever unsure about a communication, don't click any links—visit anthropic.com/careers directly for confirmed position openings. How we're different We believe that the highest-impact AI research will be big science. At Anthropic we work as a single cohesive team on just a few large-scale research efforts. And we value impact — advancing our long-term goals of steerable, trustworthy AI — rather than work on smaller and more specific puzzles. We view AI research as an empirical science, which has as much in common with physics and biology as with traditional efforts in computer science. We're an extremely collaborative group, and we host frequent research discussions to ensure that we are pursuing the highest-impact work at any given time. As such, we greatly value communication skills. The easiest way to understand our research directions is to read our recent research. This research continues many of the directions our team worked on prior to Anthropic, including: GPT-3, Circuit-Based Interpretability, Multimodal Neurons, Scaling Laws, AI & Compute, Concrete Problems in AI Safety, and Learning from Human Preferences. Come work with us! Anthropic is a public benefit corporation headquartered in San Francisco. We offer competitive compensation and benefits, optional equity donation matching, generous vacation and parental leave, flexible working hours, and a lovely office space in which to collaborate with colleagues. Guidance on Candidates' AI Usage: Learn about our policy for using AI in our application process.

Location: Ukraine; Moldova; Latvia; Slovakia; Czech Republic; Slovenia; Romania; Kazakhstan; Poland; Hungary; Montenegro; Estonia; European Union; Cyprus; Lithuania; Greece Workplace: Remote ABOUT US Ruby Labs is a leading tech company that creates and operates innovative consumer products. We offer a diverse range of opportunities across the health, education, and entertainment industries. Our innovative teams are driving the future of consumer-led products, and we're always looking for passionate individuals to join us. Learn more about our story at: https://rubylabs.com/about-us/ ABOUT THE ROLE We’re looking for a Lead Billing Data Analyst (Billing, Payments & Subscription Analytics) to own the data strategy behind our subscription billing operations. This is a hands-on leadership role: you’ll build analyses and pipelines that improve billing performance, while also managing and mentoring a team of analysts. KEY RESPONSIBILITIES ANALYTICS & TECHNICAL WORK - Monitor, analyze, and report on billing and support performance metrics (payments, renewals, refunds, disputes/chargebacks), and surface emerging trends. - Build and maintain data pipelines that deliver accurate, timely, and reliable billing data. - Apply statistical methods to model scenarios, run “what-if” analyses, and anticipate financial risk. - Design and run A/B tests and experiments to evaluate billing and support initiatives. - Analyze the impact of product, marketing, and pricing changes on billing outcomes, risk behavior, and customer support metrics. - Build and maintain dashboards and visual reporting that provide clear, real-time visibility into billing health and support performance. - Turn insights into recommendations that reduce disputes, churn, and operational inefficiencies. - Document analyses, workflows, definitions, and data logic to ensure clarity, reproducibility, and consistency. LEADERSHIP & COLLABORATION - Lead, mentor, and grow a team of data analysts: set expectations, coach on methodology, and ensure high-quality output. - Own the team’s intake and prioritization process; manage task flow and delivery timelines against business needs. - Uplevel the team’s billing domain knowledge and analytical/technical skills. - Partner cross-functionally with Billing, Support, Finance, Product, and Marketing to align metrics, definitions, and processes with risk-mitigation goals. QUALIFICATIONS - Deep subscription billing expertise: substantial experience with payments, renewals, refunds, disputes/chargebacks/TC40 in a recurring-revenue business (non-negotiable). - Advanced SQL: complex joins, window functions, incremental logic, and performance-aware query writing. - Data visualization: proficiency with Omni, Tableau, Power BI, or similar tools to build dashboards and communicate insights clearly. - People leadership: experience setting priorities, distributing work, reviewing output, and being accountable for a team’s results. - Statistical & analytical rigor: forecasting, experiment design, and translating ambiguous business questions into structured analysis. - Billing platforms / processors: familiarity with tools such as Stripe, Braintree, Nuvei, or similar. - Strong communication: ability to explain complex findings to both technical and non-technical stakeholders. - Cross-functional collaboration: track record of influencing decisions with data across multiple departments. NICE TO HAVE - Python and/or modern analytics tooling (dbt, Airflow, or similar). - Experience building and maintaining ETL/ELT pipelines for billing or financial data. - Risk analysis or fraud-adjacent experience in billing contexts. - Advanced visualization techniques (cohorts, funnels, anomaly detection dashboards). LOCATION Ruby Labs operates within the CET (Central European Time) zone. Applicants from any country are welcome to apply for the position as long as they are located within approximately ± 4 hours of CET. This ensures optimal collaboration and communication during working hours. BENEFITS Discover the perks of being part of our vibrant team! We offer: - Remote Work Environment: Embrace the freedom to work from anywhere, anytime, promoting a healthy work-life balance. - Unlimited PTO: Enjoy unlimited paid time off to recharge and prioritize your well-being, without counting days. - Paid National Holidays: Celebrate and relax on national holidays with paid time off to unwind and recharge. - Company-provided MacBook: Experience seamless productivity with top-notch Apple MacBooks provided to all employees who need them. - Flexible Independent Contractor Agreement: Unlock the benefits of flexibility, autonomy, and entrepreneurial opportunities. Benefit from tax advantages, networking opportunities, reduced employment obligations, and the freedom to work from anywhere. Read more about it here: https://docs.google.com/document/d/1tzxGX4Uu7Ts_HCLFXESKLnKaaBfVCPf1f9AYZPrkjJM/preview?tab=t.0 https://docs.google.com/document/d/1nkrN76JlZkbKj9WSOhlT1_mni_CZeDkHdwfIjPXVwvk/preview?tab=t.0 Be part of our fast-growing team and seize this excellent opportunity for personal and professional growth! INTERVIEW PROCESS After submitting your application, we conduct a thorough review which typically takes 3 to 5 days, but may occasionally take longer due to the volume of applications received. If we see a potential fit, we proceed with the following steps: - Recruiter Screening (40 minutes) - Technical Interview (90 minutes) - Final Interview (60 minutes) LIFE AT RUBY LABS At Ruby Labs, we move fast, aim high, and expect the same from our team. We’re not here to play small—we’re here to build, grow, and win. That means we look for people who are ambitious, driven, and ready to give their best every single day. This is a place for individuals who thrive under pressure, embrace challenges, and see opportunity in every obstacle. If you’re hungry to achieve, motivated by impact, and want to grow at the speed of your own ambition, Ruby Labs offers the platform to make it happen. Here, effort is matched with reward. We recognize those who go all in and deliver results, and we create space for people who want more—more responsibility, more growth, and more success. #LI-Remote