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Location: Singapore, Singapore 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 Java Engineer to join our Fraud Risk team! This role will provide an early and significant impact on the engineering team. You will be expected to be responsible for such areas as implementation and support of backend microservices, working closely with the frontend and cross-functional teams to coordinate complex deliverables, do research and provide meaningful feedback about any decision being made within the team. Following are some domains you will have opportunities to work with: Real-time fraudulent monitoring with highly configurable rules Event data stream ingestion which supports near real-time fraud rules setup Advanced A/B testing capabilities for our customers so they can leverage greedy algorithms and fight fraud Powerful tools and innovative data science driven solutions for business user Full feature risk ecosystem What You’ll Be Doing Proficiency with Java stack and JVM (memory/performance tuning, GC) Proficiency with developing Web Services, SOA, REST APIs, Message Queue, Distributed/Scalable Architecture Proficiency in Spring Framework (Spring Boot), Hibernate (or similar ORM), Maven, Git Design and develop 24/7 high scale APIs and distributed system, the tech stack will be on Alicloud/AWS Strong CS fundamentals, solid knowledge of OOP/OOD, GoF design patterns Write unit tests, integration tests and CI/CD scripts Own, monitor and improve our services in production Development and testing of high quality product features spanning multiple product domains Work with engineering managers, architects, engineers & QA to develop innovative solutions that meet market needs w.r.t functionality, performance, reliability, realistic implementation schedules and adherence to development goals and principles Be a technical leader; research and promote new technologies and tools Face technical challenges - performance, fault-tolerance, security and live production issues Be involved throughout our service life cycle, influence every step of the way What We Look For In You Min. 5+ years of experience in Software Development Possess a solid foundation in Java, with a deep understanding of JVM configuration optimisation strategies and tuning, IO, multi-threading, concurrency frameworks, common data structures, algorithms, and design patterns Good programming specifications and rich work experience Familiar with mainstream open-source application frameworks, such as SpringBoot, SpringMVC, Mybatis, SpringCloud, etc. Experience with MySQL, Oracle, and other databases, with an in-depth understanding of things, locks, indexes, database and SQL optimisation, design methods such as sub-database sub-table, leader/follower synchronization Familiar with common middleware, such as Kakfa, ELK, Hologres, etc. Possess a deep understanding of the design principles of common caching systems, such as Memcached, Redis, etc. and be able to accurately choose caching solutions Have a good understanding of distributed system principles, including CAP, consistency, idempotent operation, etc. Work well in a team environment and be able to effectively drive cross-team solutions that have complex dependencies and requirements Results-oriented, self-learner, problem solver with 'can do' attitude Clear logic, quick thinking and good communication skills Bilingual is highly preferred (Mandarin and English) as the team will be working with stakeholders in different regions Nice-To-Have Already or are eager to become an expert in the blockchain and cryptocurrency landscape and will understand how speculators, traders, digital asset exchanges, blockchain money services businesses and financial institutions operate Experience working in a disruptive technology, successfully launching products, ideally, within FinTech, eCommerce, SaaS, AdTech, or Digital Wallet business experience A history (and preference) of being both strategic, analytical and execution-oriented Familiarity with product management processes and tools Experience working with teams across different time zones Perks & Benefits Competitive total compensation package 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! 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: Jakarta Who are we? Tripledot Studios is one of the largest independent mobile games companies in the world. We are a multi-award-winning organisation, with a global 2,500+ strong team across 12 studios. Our expanded portfolio includes some of the biggest titles in mobile gaming, collectively reaching top chart positions around the world and engaging over 25 million daily active users. Tripledot’s guiding principle is that when people love what they do, what they do will be loved by others. We’re building a company we’re proud of. One filled with driven, incredibly smart and detail-orientated people, who LOVE making games. Our ambition is to be the most successful games company in the world, and we’re just getting started. The role is working within our studio: Ludios About Ludios Ludios takes its name from the Latin, it means "The Game People". Led by Eyal, one of the co-founders of Tripledot Studios, and some of the most experienced people in mobile games, we are a studio that makes and publishes our own casual, free-to-play mobile games. Our team is based across APAC, with the majority of our development happening in Jakarta and Melbourne. We are data-driven, creative, and genuinely passionate about the industry we work in. Right now, we are working on a number of exciting projects, including one built around a globally recognised IP, alongside several original titles we are equally excited about. If crafting games and reaching millions of players is what gets you out of bed, we would love to hear from you. Role Overview We are looking for a Senior Unity Software Engineer to join our team! At Tripledot we work collaboratively in a productive, Agile team environment. You will be working primarily in Unity, collaborating with our product and design team to add new and exciting game features, build tools and help to maintain good health of the game on both IOS and Android. Implement gameplay features in Unity. Develop new titles, features and support live operations. Optimize code & memory for high performance on iOS and Android. Design and plan architecture, implement maintainable code. Review code and write unit tests.. Required Skills, Knowledge and Expertise At least 5+ years of experience working with Unity and C# as a programmer A “Can Do” mentality that drives improvement and meeting deadlines. A good mentor to less experienced developers and a good communicator. Strong architectural, design pattern and OOP experience. Strong mobile gaming and liveops system background is a plus. Experience with prototyping but also extending a large legacy project. Experience with Deep Profiler, Frame Debugger, Memory Profiler. Experience with Unity UI and gameplay programming. Experience with Git or other source control systems. Experience in working with existing code bases. Experience with GLSL/HLSL and ShaderGraph is a plus. Excellent English skills, both written and verbal Working at Tripledot Hybrid Working: We work in the office 3 days a week, Tuesdays and Wednesdays, and Thursday 20 days fully remote working: Work from anywhere in the world, 20 days of the year. Regular company events and rewards: Join in regular events and rewards that celebrate cultural events, our achievements and our  team spirit. Breakfast & Lunch: Relish daily provided breakfast and lunch to keep you fueled and focused. BPJS HEALTH: Elevate your well-being and peace of mind, ensuring robust health security with seamless enrolment in BPJS Health! BPJS SOCIAL: Secure your employment rights with BPJS Social. Festivity Allowance: Celebrate festive occasions with an additional festive allowance. Health Insurance: Stay covered with comprehensive health insurance for you and your loved ones. Employee Assistance Program: Anytime you need it, tap into confidential, caring support with our Employee Assistance Program, always here to lend an ear and a helping hand.

Location: Cyprus Workplace: remote About Finom   Finom is a European tech startup headquartered in Amsterdam, and we’re on a journey towards revolutionizing the financial landscape for entrepreneurs worldwide. Our mission is to develop an all-in-one financial B2B solution that integrates banking functions, accounting, financial management, and invoicing into a seamless, mobile-first platform.   We recently closed a €115 million Series C equity round (around $133 million), bringing our total funding to approximately $346 million. This significant investment follows a $105 million growth funding round from General Catalyst, a long-term backer since 2021 known for supporting companies like Airbnb, HubSpot, KAYAK, and Stripe.   Finom's platform goes beyond traditional banking, offering invoicing and a growing suite of features, including AI-enabled accounting, aiming to simplify financial management for entrepreneurs. We're actively expanding our reach across key EU markets like Germany, France, the Netherlands, Italy, and Spain.   At Finom, we’re not just redefining the entrepreneurial experience — we’re empowering our employees to make a real difference. Your work matters, and your impact extends far beyond product metrics. We nurture innovation and an inspiring work environment where bold ideas thrive, prioritizing thorough research, swift implementation of solutions, and ensuring that every effort we make benefits our users, employees, partners, and our business as a whole.   Maintaining our start-up spirit, we prioritize thorough research, swift implementation of solutions, and ensuring that every effort we make benefits our users, employees, partners, and, of course, our business. We're looking for a Senior Backend Engineer who thinks like a product builder, thrives in a collaborative, cross-functional environment, and is passionate about creating robust, scalable financial infrastructure. You'll be part of a domain team where various engineering crafts (Backend, Frontend, Mobile, ML/AI engineers, and QA) work together to own and evolve a shared product area that delivers real value to hundreds of thousands of businesses across Europe.   About You and What You'll Do:   You're pragmatic, learn quickly, and have a proven track record of shipping products that matter. You communicate clearly across disciplines and genuinely enjoy the dynamics of a cross-functional team where everyone contributes to solving the same customer problems. Above all, you're curious – about the product, the users, the business, and how your technical decisions impact all three.   As a product-minded backend engineer, you don't just implement tickets. You understand the "why" behind what you're building, challenge assumptions when needed, and proactively identify opportunities to create better outcomes. You're comfortable discussing trade-offs with product managers, explaining technical constraints to business stakeholders, and collaborating with frontend and mobile engineers to design elegant end-to-end solutions.   You have deep expertise in .NET and C# with a strong appreciation for maintainable, scalable code, and distributed architectures. But more importantly, you know when to apply that expertise and when simpler solutions serve the product better. You've built data-intensive applications before and understand the concepts of working in a regulated environment.   You take ownership not just of your code, but of the outcomes. You move without being prompted, whether that's jumping into a customer issue, improving team processes, or mentoring colleagues. You're curious about adjacent domains – you might peek at the frontend code, ask questions about the ML models, or dive into analytics to understand how features perform.   Quality is non-negotiable for you. Automated testing, thorough code reviews, and security best practices are fundamental to how you work. You balance technical excellence with pragmatism, always keeping the end user and business goals in mind. Your experience includes: At least 5 years of professional backend development with a product engineering mindset Excellent knowledge of .NET platform and C# Hands-on experience architecting and evolving distributed systems in production Proven ability to collaborate effectively with product managers, designers, and engineers from other disciplines Strong business acumen – you understand how your work connects to company objectives Clear, concise communication in English across technical and non-technical audiences A builder's mentality: you care deeply about shipping great products, not just writing great code Our tech stack Backend: .NET/C#, PostgreSQL, Redis, RabbitMQ, Kafka, Kubernetes, GCP. You'll work alongside teams using React (Web), Swift (iOS) / Kotlin (Android), Python/ML frameworks, and modern test automation tools (Playwright, Appium). Recruitment flow: Recruiter Interview First Technical Interview System Design Interview Team Fit Interview (peer interview) Offer What You Will Get In Return   Make a genuine impact on the product   Join our upward trajectory, and grow with us. We provide the resources and opportunities for continuous personal and professional development, empowering you to make a genuine impact on our evolving product.   Work in the EU   Embark on this exciting journey with us and enjoy the flexibility of traveling and working remotely or in a hybrid model across Europe.   Become a stock options holder   Unlock your inner entrepreneur and align your aspirations with ours through our Stock Options Program. This exciting opportunity is available to every team member, from junior team members to our founders.   Receive unwavering support and care   Finom stands by you at every step, embodying our commitment to your well-being and success reflected in our modern, friendly, and eco-conscious corporate culture. We offer constant support and care to ensure your Finom experience is successful and fulfilling.   Work & Swim program   Immerse yourself in our exclusive Work & Swim Program. Spend one month in a comfortable corporate apartment in enchanting Cyprus. It's the ideal opportunity to strike the perfect work-life balance while enjoying breathtaking Mediterranean views.   Equal Opportunity Statement    At Finom, we're an equal opportunity employer and value diversity at our company. We embrace diversity and invite applications from all walks of life. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, disability status, or other applicable legally protected characteristics.

Location: Romania Workplace: remote About Finom   Finom is a European tech startup headquartered in Amsterdam, and we’re on a journey towards revolutionizing the financial landscape for entrepreneurs worldwide. Our mission is to develop an all-in-one financial B2B solution that integrates banking functions, accounting, financial management, and invoicing into a seamless, mobile-first platform.   We recently closed a €115 million Series C equity round (around $133 million), bringing our total funding to approximately $346 million. This significant investment follows a $105 million growth funding round from General Catalyst, a long-term backer since 2021 known for supporting companies like Airbnb, HubSpot, KAYAK, and Stripe.   Finom's platform goes beyond traditional banking, offering invoicing and a growing suite of features, including AI-enabled accounting, aiming to simplify financial management for entrepreneurs. We're actively expanding our reach across key EU markets like Germany, France, the Netherlands, Italy, and Spain.   At Finom, we’re not just redefining the entrepreneurial experience — we’re empowering our employees to make a real difference. Your work matters, and your impact extends far beyond product metrics. We nurture innovation and an inspiring work environment where bold ideas thrive, prioritizing thorough research, swift implementation of solutions, and ensuring that every effort we make benefits our users, employees, partners, and our business as a whole.   Maintaining our start-up spirit, we prioritize thorough research, swift implementation of solutions, and ensuring that every effort we make benefits our users, employees, partners, and, of course, our business. We're looking for a Senior Backend Engineer who thinks like a product builder, thrives in a collaborative, cross-functional environment, and is passionate about creating robust, scalable financial infrastructure. You'll be part of a domain team where various engineering crafts (Backend, Frontend, Mobile, ML/AI engineers, and QA) work together to own and evolve a shared product area that delivers real value to hundreds of thousands of businesses across Europe.   About You and What You'll Do:   You're pragmatic, learn quickly, and have a proven track record of shipping products that matter. You communicate clearly across disciplines and genuinely enjoy the dynamics of a cross-functional team where everyone contributes to solving the same customer problems. Above all, you're curious – about the product, the users, the business, and how your technical decisions impact all three.   As a product-minded backend engineer, you don't just implement tickets. You understand the "why" behind what you're building, challenge assumptions when needed, and proactively identify opportunities to create better outcomes. You're comfortable discussing trade-offs with product managers, explaining technical constraints to business stakeholders, and collaborating with frontend and mobile engineers to design elegant end-to-end solutions.   You have deep expertise in .NET and C# with a strong appreciation for maintainable, scalable code, and distributed architectures. But more importantly, you know when to apply that expertise and when simpler solutions serve the product better. You've built data-intensive applications before and understand the concepts of working in a regulated environment.   You take ownership not just of your code, but of the outcomes. You move without being prompted, whether that's jumping into a customer issue, improving team processes, or mentoring colleagues. You're curious about adjacent domains – you might peek at the frontend code, ask questions about the ML models, or dive into analytics to understand how features perform.   Quality is non-negotiable for you. Automated testing, thorough code reviews, and security best practices are fundamental to how you work. You balance technical excellence with pragmatism, always keeping the end user and business goals in mind. Your experience includes: At least 5 years of professional backend development with a product engineering mindset Excellent knowledge of .NET platform and C# Hands-on experience architecting and evolving distributed systems in production Proven ability to collaborate effectively with product managers, designers, and engineers from other disciplines Strong business acumen – you understand how your work connects to company objectives Clear, concise communication in English across technical and non-technical audiences A builder's mentality: you care deeply about shipping great products, not just writing great code Our tech stack Backend: .NET/C#, PostgreSQL, Redis, RabbitMQ, Kafka, Kubernetes, GCP. You'll work alongside teams using React (Web), Swift (iOS) / Kotlin (Android), Python/ML frameworks, and modern test automation tools (Playwright, Appium). Recruitment flow: Recruiter Interview First Technical Interview System Design Interview Team Fit Interview (peer interview) Offer What You Will Get In Return   Make a genuine impact on the product   Join our upward trajectory, and grow with us. We provide the resources and opportunities for continuous personal and professional development, empowering you to make a genuine impact on our evolving product.   Work in the EU   Embark on this exciting journey with us and enjoy the flexibility of traveling and working remotely or in a hybrid model across Europe.   Become a stock options holder   Unlock your inner entrepreneur and align your aspirations with ours through our Stock Options Program. This exciting opportunity is available to every team member, from junior team members to our founders.   Receive unwavering support and care   Finom stands by you at every step, embodying our commitment to your well-being and success reflected in our modern, friendly, and eco-conscious corporate culture. We offer constant support and care to ensure your Finom experience is successful and fulfilling.   Work & Swim program   Immerse yourself in our exclusive Work & Swim Program. Spend one month in a comfortable corporate apartment in enchanting Cyprus. It's the ideal opportunity to strike the perfect work-life balance while enjoying breathtaking Mediterranean views.   Equal Opportunity Statement    At Finom, we're an equal opportunity employer and value diversity at our company. We embrace diversity and invite applications from all walks of life. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, disability status, or other applicable legally protected characteristics.

Location: Vilnius Workplace: remote About Finom   Finom is a European tech startup headquartered in Amsterdam, and we’re on a journey towards revolutionizing the financial landscape for entrepreneurs worldwide. Our mission is to develop an all-in-one financial B2B solution that integrates banking functions, accounting, financial management, and invoicing into a seamless, mobile-first platform.   We recently closed a €115 million Series C equity round (around $133 million), bringing our total funding to approximately $346 million. This significant investment follows a $105 million growth funding round from General Catalyst, a long-term backer since 2021 known for supporting companies like Airbnb, HubSpot, KAYAK, and Stripe.   Finom's platform goes beyond traditional banking, offering invoicing and a growing suite of features, including AI-enabled accounting, aiming to simplify financial management for entrepreneurs. We're actively expanding our reach across key EU markets like Germany, France, the Netherlands, Italy, and Spain.   At Finom, we’re not just redefining the entrepreneurial experience — we’re empowering our employees to make a real difference. Your work matters, and your impact extends far beyond product metrics. We nurture innovation and an inspiring work environment where bold ideas thrive, prioritizing thorough research, swift implementation of solutions, and ensuring that every effort we make benefits our users, employees, partners, and our business as a whole.   Maintaining our start-up spirit, we prioritize thorough research, swift implementation of solutions, and ensuring that every effort we make benefits our users, employees, partners, and, of course, our business. We're looking for a Senior Backend Engineer who thinks like a product builder, thrives in a collaborative, cross-functional environment, and is passionate about creating robust, scalable financial infrastructure. You'll be part of a domain team where various engineering crafts (Backend, Frontend, Mobile, ML/AI engineers, and QA) work together to own and evolve a shared product area that delivers real value to hundreds of thousands of businesses across Europe.   About You and What You'll Do:   You're pragmatic, learn quickly, and have a proven track record of shipping products that matter. You communicate clearly across disciplines and genuinely enjoy the dynamics of a cross-functional team where everyone contributes to solving the same customer problems. Above all, you're curious – about the product, the users, the business, and how your technical decisions impact all three.   As a product-minded backend engineer, you don't just implement tickets. You understand the "why" behind what you're building, challenge assumptions when needed, and proactively identify opportunities to create better outcomes. You're comfortable discussing trade-offs with product managers, explaining technical constraints to business stakeholders, and collaborating with frontend and mobile engineers to design elegant end-to-end solutions.   You have deep expertise in .NET and C# with a strong appreciation for maintainable, scalable code, and distributed architectures. But more importantly, you know when to apply that expertise and when simpler solutions serve the product better. You've built data-intensive applications before and understand the concepts of working in a regulated environment.   You take ownership not just of your code, but of the outcomes. You move without being prompted, whether that's jumping into a customer issue, improving team processes, or mentoring colleagues. You're curious about adjacent domains – you might peek at the frontend code, ask questions about the ML models, or dive into analytics to understand how features perform.   Quality is non-negotiable for you. Automated testing, thorough code reviews, and security best practices are fundamental to how you work. You balance technical excellence with pragmatism, always keeping the end user and business goals in mind. Your experience includes: At least 5 years of professional backend development with a product engineering mindset Excellent knowledge of .NET platform and C# Hands-on experience architecting and evolving distributed systems in production Proven ability to collaborate effectively with product managers, designers, and engineers from other disciplines Strong business acumen – you understand how your work connects to company objectives Clear, concise communication in English across technical and non-technical audiences A builder's mentality: you care deeply about shipping great products, not just writing great code Our tech stack Backend: .NET/C#, PostgreSQL, Redis, RabbitMQ, Kafka, Kubernetes, GCP. You'll work alongside teams using React (Web), Swift (iOS) / Kotlin (Android), Python/ML frameworks, and modern test automation tools (Playwright, Appium). Recruitment flow: Recruiter Interview First Technical Interview System Design Interview Team Fit Interview (peer interview) Offer What You Will Get In Return   Make a genuine impact on the product   Join our upward trajectory, and grow with us. We provide the resources and opportunities for continuous personal and professional development, empowering you to make a genuine impact on our evolving product.   Work in the EU   Embark on this exciting journey with us and enjoy the flexibility of traveling and working remotely or in a hybrid model across Europe.   Become a stock options holder   Unlock your inner entrepreneur and align your aspirations with ours through our Stock Options Program. This exciting opportunity is available to every team member, from junior team members to our founders.   Receive unwavering support and care   Finom stands by you at every step, embodying our commitment to your well-being and success reflected in our modern, friendly, and eco-conscious corporate culture. We offer constant support and care to ensure your Finom experience is successful and fulfilling.   Work & Swim program   Immerse yourself in our exclusive Work & Swim Program. Spend one month in a comfortable corporate apartment in enchanting Cyprus. It's the ideal opportunity to strike the perfect work-life balance while enjoying breathtaking Mediterranean views.   Equal Opportunity Statement    At Finom, we're an equal opportunity employer and value diversity at our company. We embrace diversity and invite applications from all walks of life. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, disability status, or other applicable legally protected characteristics.

Location: Serbia Workplace: remote ABOUT YOU   We are looking for a Senior Software Engineer (React Native) who is architecturally strong, quality-driven, and highly collaborative to join our Mobile Engineering team. The best candidate will be someone who thrives in a fast-paced, highly collaborative, and exceptionally dynamic setting and is excited to lead mobile architecture decisions, build scalable cross-platform applications, and drive shared code strategies across web and mobile ecosystems.   Strong expertise in React Native and JavaScript/TypeScript, along with deep knowledge of mobile architecture patterns and state management, is essential, along with experience in building and delivering commercial mobile applications from concept to launch. The ability to design scalable architectures, implement robust testing strategies (including E2E), optimize performance, and mentor other developers while collaborating across cross-functional teams will be key to your success in this role.   If you're passionate about building high-quality mobile experiences that scale and love creating seamless app ecosystems that power gaming, virtual currency, and digital commerce experiences, we would love to hear from you! ABOUT US   Xsolla is a global commerce company with robust tools and services to help developers solve the inherent challenges of the video game industry. From indie to AAA, companies partner with Xsolla to help them fund, distribute, market, and monetize their games. Grounded in the belief in the future of video games, Xsolla is resolute in the mission to bring opportunities together, and continually make new resources available to creators. Headquartered and incorporated in Los Angeles, California, Xsolla operates as the merchant of record and has helped over 1,500+ game developers to reach more players and grow their businesses around the world. With more paths to profits and ways to win, developers have all the things needed to enjoy the game.   For more information, visitxsolla.com. Responsibilities Develop and maintain mobile applications using React Native for iOS and Android platforms. Implement best practices for mobile development, including code review, testing strategies, and CI/CD processes. Deliver high-quality features on time throughout the development lifecycle. Build scalable and maintainable features within the existing application architecture. Collaborate with product and design teams to implement technical solutions that meet business goals. Integrate mini-apps and virtual currency systems with the Xsolla App ecosystem. Work with cross-functional teams, including developers, QA engineers, and project managers. Participate in technical discussions to align development work with business objectives. Communicate effectively across distributed teams. Architecture & Design Design and implement scalable application architecture for React Native mobile apps with a focus on maintainability, performance, and developer experience. Lead architectural decisions around shared code strategies between React web and React Native mobile platforms. Establish and enforce coding standards, design patterns, and best practices across the mobile development team. Create technical specifications and architecture documentation for complex features and systems. Build and maintain a robust monorepo infrastructure using tools like Nx, Turborepo, or similar. Configure and optimize build pipelines, dependency management, and workspace configurations. Implement efficient caching strategies and incremental builds to optimize CI/CD performance. Manage versioning, publishing, and dependency relationships between packages. Design and develop a comprehensive shared component library that works seamlessly across React and React Native. Create platform-agnostic business logic, utilities, and services that can be consumed by both web and mobile. Build tooling and documentation to enable other developers to easily leverage shared code. Implement adaptive components with platform-specific implementations where necessary while maintaining a unified API. Establish patterns for sharing type definitions, hooks, contexts, and state management across platforms. Qualifications & Skills: 5+ years of experience in mobile application development with a strong focus on React Native. Bachelor's degree in Computer Science, Engineering, or a related field (or equivalent experience). Proven track record of delivering commercial mobile applications from concept to launch. Proficiency in React Native and JavaScript/TypeScript, with knowledge of native modules (Swift/Kotlin) as a plus. Strong understanding of mobile architecture patterns and state management. Experience with third-party integrations and APIs. Strong problem-solving abilities and a results-driven approach. Effective communication skills, both written and verbal. Familiarity with gaming ecosystems and virtual currency platforms is a plus. Benefits   We are passionate about fostering a supportive environment for our team, so we prioritize the physical, mental, and emotional well-being of our employees through a comprehensive Benefits Program. This includes unlimited Flexible Time Off and a personalized career roadmap for each employee. By investing in professional development through training and educational opportunities, we ensure that our team thrives both personally and professionally. Together, we’re not just building a business; we’re cultivating a community that values creativity, collaboration, and the transformative power of play.   The duties and responsibilities of this position may evolve over time to support the organization’s goals and individual growth. This job description is intended to outline the general nature and level of work being performed and is not intended to be an exhaustive list of all duties, responsibilities, and qualifications required.   By submitting your application, you consent to Xsolla conducting background checks, where permitted by law, after the final interview stage. All checks will comply with local regulations, and your information will be handled confidentially.   Xsolla takes your privacy seriously and will not sell or externally distribute any personal data received during the hiring process. In accordance with applicable data protection laws, Xsolla is committed to protecting your personal information and respecting your privacy.   For any inquiries related to data privacy, please contact: careers@xsolla.com    Explore more opportunities at: https://xsolla.com/careers

О КОМАНДЕ И ЗАДАЧАХ Мы ищем дизайнера-продуктолога, который готов закрывать задачи целиком. У нас стабильный поток разноплановых проектов: от классических мобильных приложений и админок до лендингов и трендовых Web3/TON продуктов (NFT, dApps). Нам важна логика и проектирование пользовательского опыта, а не просто отрисовка кнопок по ТЗ. ЧТО ПРЕДСТОИТ ДЕЛАТЬ — Interface Design: Проектирование логики и отрисовка UI для мобильных платформ и Web. — Telegram Ecosystem: Разработка интерфейсов для Telegram Mini Apps. — Web3/Crypto: Дизайн dApps и NFT-сервисов в экосистеме TON. — Technical Logic: Работа с сетками, типографикой и композицией с учетом технических ограничений верстки. ЧТО МЫ ЖДЕМ ОТ ВАС — Tools: Уверенная работа в Figma (компоненты, автолейауты, прототипирование). — Guidelines: Глубокое понимание HIG (iOS) и Material Design (Android). — Mindset: Умение проектировать сложные интерфейсы, понимая, как это будет реализовано в коде. — Portfolio: Обязательно наличие реальных кейсов (Behance / Dprofile / PDF). БУДЕТ ПЛЮСОМ — Опыт работы в Web3 / TON проектах. — Навыки анимации в After Effects или Lottie. — Понимание основ HTML/CSS и опыт работы с дизайн-системами. Важно: Без портфолио переписку не начинаем. Откликайтесь с примерами работ.

Location: USA Workplace: Remote Moonshot is the “Robinhood for DeFi”—an iOS and Android app that lets anyone trade cryptocurrencies on-chain through a user-friendly interface. Since our launch in July 2024, we’ve attracted 2M+ users. Our mission: Make moonshots possible for everyone. Our vision: Make a world where life-changing financial outcomes are within everyone's reach. Everyone on our team is both a decision-maker and an implementer—united by a sense of urgency and driven by the conviction that our work can transform global finance. If you thrive on curiosity, welcome tough challenges, and aspire to leave a meaningful mark on the world, Moonshot is the place for you. You’ll run toward the hardest problems alongside high-caliber teammates who consistently push each other to excel and who share your dedication to shaping the future of decentralized finance. This role is full-time, preferably located in NYC. Open to remote for the right candidate. THE OPPORTUNITY As a Staff Backend & Platform Engineer at Moonshot, you’ll own some of the most critical systems in our stack: identity and access, funds movement and ledgering, and the blockchain infrastructure that powers our on-chain trading. This role is similar to staff engineers at leading crypto wallets and exchanges who own authentication stacks, key management, and high-scale financial backends. You’ll design, build, and operate systems that must be both highly reliable and extremely secure, enabling product teams to move quickly on a solid foundation. WHAT YOU’LL DO - Design, build, and operate Identity & Access Management services: - Authentication flows, sessions, device trust. - Authorization and entitlements (roles, permissions, policies). - Security controls such as MFA and key management (working with security teams). - Own financial operations systems: - Transfers and payments orchestration. - Ledgering and reconciliation flows. - Limits, risk controls, and transactional correctness. - Build and maintain blockchain infrastructure: - Node and RPC management. - Transaction submission, monitoring, and retry logic. - Indexing and streaming of on-chain data into internal services and data stores. - Define and uphold reliability and observability standards: - SLOs and error budgets for core services. - Dashboards, alerts, runbooks, and incident management practices. - Lead large, cross-functional technical projects from design through rollout, collaborating with Product, Security, and Ops. - Mentor and guide other engineers, contributing to engineering standards, design reviews, and documentation. - Stay close to industry best practices in auth, key management, and secure infrastructure for crypto and trading. WHAT WE LOOK FOR IN YOU - 5–12+ years of backend or product or platform engineering, including experience with high-scale, high-availability systems in fintech, crypto, or similar domains. - Deep expertise in at least one of: - Identity & access / security engineering - Financial systems / ledgering / payments - Blockchain infrastructure / on-chain data - Strong experience designing and operating distributed systems (datastores, queues, streaming, background workers). - Track record driving architecture decisions and seeing them through implementation and adoption. - Strong operational mindset: monitoring, on-call, incident response, and postmortems. - Excellent collaboration skills, especially with Product, Security, and Ops. NICE TO HAVES - Experience with Flutter, React Native, React, Headless CRMs - Experience with Go, Rust, Solana - Experience with Google Cloud or Amazon Web Services - Experience with crypto wallets, exchanges, or onchain protocols including DeFi, L2s, ZK - Exposure to data warehousing and analytics for financial reporting. - Contributions to open-source projects. LOCATION - NYC preferred (with periodic in-person sprints). - Remote-friendly within the United States and Canada; travel ~1wk/quarter COMPENSATION & PACKAGE - Competitive salary and meaningful equity. - 5% 401(k) match. - Health benefits with employer-covered premiums, plus life insurance coverage. - One-time office setup stipend. - Flexible PTO.

Location: USA Workplace: Remote Moonshot is the “Robinhood for DeFi”—an iOS and Android app that lets anyone trade cryptocurrencies on-chain through a user-friendly interface. Since our launch in July 2024, we’ve attracted 2M+ users. Our mission: Make moonshots possible for everyone. Our vision: Make a world where life-changing financial outcomes are within everyone's reach. Everyone on our team is both a decision-maker and an implementer—united by a sense of urgency and driven by the conviction that our work can transform global finance. If you thrive on curiosity, welcome tough challenges, and aspire to leave a meaningful mark on the world, Moonshot is the place for you. You’ll run toward the hardest problems alongside high-caliber teammates who consistently push each other to excel and who share your dedication to shaping the future of decentralized finance. This role is full-time, preferably located in NYC. Open to remote for the right candidate. THE OPPORTUNITY As a Senior Backend & Platform Engineer at Moonshot, you’ll own some of the most critical systems in our stack: identity and access, funds movement and ledgering, and the blockchain infrastructure that powers our on-chain trading. This role is similar to staff engineers at leading crypto wallets and exchanges who own authentication stacks, key management, and high-scale financial backends. You’ll design, build, and operate systems that must be both highly reliable and extremely secure, enabling product teams to move quickly on a solid foundation. WHAT YOU’LL DO - Design, build, and operate Identity & Access Management services: - Authentication flows, sessions, device trust. - Authorization and entitlements (roles, permissions, policies). - Security controls such as MFA and key management (working with security teams). - Own financial operations systems: - Transfers and payments orchestration. - Ledgering and reconciliation flows. - Limits, risk controls, and transactional correctness. - Build and maintain blockchain infrastructure: - Node and RPC management. - Transaction submission, monitoring, and retry logic. - Indexing and streaming of on-chain data into internal services and data stores. - Define and uphold reliability and observability standards: - SLOs and error budgets for core services. - Dashboards, alerts, runbooks, and incident management practices. - Lead large, cross-functional technical projects from design through rollout, collaborating with Product, Security, and Ops. - Mentor and guide other engineers, contributing to engineering standards, design reviews, and documentation. - Stay close to industry best practices in auth, key management, and secure infrastructure for crypto and trading. WHAT WE LOOK FOR IN YOU - 5–12+ years of backend or product or platform engineering, including experience with high-scale, high-availability systems in fintech, crypto, or similar domains. - Deep expertise in at least one of: - Identity & access / security engineering - Financial systems / ledgering / payments - Blockchain infrastructure / on-chain data - Strong experience designing and operating distributed systems (datastores, queues, streaming, background workers). - Track record driving architecture decisions and seeing them through implementation and adoption. - Strong operational mindset: monitoring, on-call, incident response, and postmortems. - Excellent collaboration skills, especially with Product, Security, and Ops. NICE TO HAVES - Experience with Flutter, React Native, React, Headless CRMs - Experience with Go, Rust, Solana - Experience with Google Cloud or Amazon Web Services - Experience with crypto wallets, exchanges, or onchain protocols including DeFi, L2s, ZK - Exposure to data warehousing and analytics for financial reporting. - Contributions to open-source projects. LOCATION - NYC preferred (with periodic in-person sprints). - Remote-friendly within the United States and Canada; travel ~1wk/quarter COMPENSATION & PACKAGE - Competitive salary and meaningful equity. - 5% 401(k) match. - Health benefits with employer-covered premiums, plus life insurance coverage. - One-time office setup stipend. - Flexible PTO.

Location: China Workplace: Remote Mapbox is the leading real-time location platform for a new generation of location-aware businesses. Mapbox is the only platform that equips organizations with the full set of tools to power the navigation of people, packages, and vehicles everywhere. More than 4 million registered developers have chosen Mapbox because of the platform’s flexibility, security and privacy compliance. Organizations use Mapbox applications, data, SDKs and APIs to create customized and immersive experiences that delight their customers.  WHAT YOU'LL DO Solutions Architects are trusted technical and business advisors who partner with customers to design, prototype, and deliver solutions on the Mapbox platform. You will work directly with customers and account teams to discover needs, design architectures, and deliver solutions that turn data, mobility, and mapping into effective digital experiences and measurable business outcomes. This role is ideal for someone who combines technical depth with commercial acumen and thrives at the intersection of strategy, architecture, and delivery. Successful candidates typically have a mix of software engineering, product management, solutions engineering, and technical consulting experience prior to this role. Core responsibilities - Partner with Sales to position Mapbox’s technical value and shape opportunities. - Lead technical discovery to understand customer goals, requirements, and success criteria, and ensure solution designs meet business objectives. - Design and present scalable architectures using Mapbox SDKs, APIs, and platform services. - Respond to technical customer requests (RFI/RFQ) with clear technical documentation and solution proposals. - Provide technical guidance during the pre-sales cycle and deliver rapid technical enablement via workshops, demos, and PoC/PoV in a fast-paced digital customer environment. - Drive customer success by accelerating time-to-value and supporting adoption and expansion in a dynamic, complex ecosystem. - Advocate for customer needs and provide structured feedback to influence product and engineering direction. - Stay current on mapping, mobility, and AI technologies and share best practices internally and with customers. WHAT WE BELIEVE ARE IMPORTANT TRAITS FOR THIS ROLE -  5+ years in solutions architecture, customer-facing engineering (pre-sales, post-sales), or consulting. - Native-level Mandarin and English fluency: Exemplary written and verbal communication skills in both languages. - Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field (preferred). - Knowledge of web and mobile technologies (JavaScript, Android, iOS). - Experience building applications that integrate back-end APIs and front-end SDKs. - Experience of GIS, location intelligence, geospatial data, and mapping is a plus. - Experience with major cloud platforms (AWS, Azure, or GCP) is a plus. - Experience with AI technologies is a plus. - Experience leading technical responses for RFI/RFQ, crafting comprehensive technical proposals. - Strong business acumen and comfort working autonomously across distributed teams. - Demonstrated ability to translate complex requirements into scalable, robust architectures aligned with customer objectives. - Excellent communication skills with both technical and executive audiences, combined with a proven ability to influence executive, product, engineering, and developer stakeholders. - Experience supporting high volumes of customer opportunities and context-switching efficiently across stakeholders. - Experience in various industries (e.g. logistics, telecom, weather) is a plus. - Willingness to travel up to 25% for customer meetings, workshops, and industry events. WHAT WE VALUE In addition to our core values https://www.mapbox.com/about/values/, which are not unique to this position and are necessary for Mapbox leaders: - We value high-performing creative individuals who dig into problems and opportunities. - We believe in individuals being their whole selves at work. We commit to this through supportive health care, parental leave, flexibility for the things that come up in life, and innovating on how we think about supporting our people. - We emphasize an environment of teaching and learning to equip employees with the tools needed to be successful in their function and the company. - We strongly believe in the value of growing a diverse team and encourage people of all backgrounds, genders, ethnicities, abilities, and sexual orientations to apply. By applying for this position, you acknowledge that you have received the Mapbox Non-US Privacy Notice https://www.mapbox.com/legal/applicant-privacy-notice/ for applicants, which is linked here.  Completing this application requires you to provide personal data, such as your name and contact information, which is mandatory for Mapbox to process your application.  We are committed to a fair and equitable hiring process. We do not discriminate against any protected class. #LI-Remote

Задачи: — Разработка и интеграция нативных модулей для iOS и Android. — Работа над высоконагруженным проектом по созданию системы управления ресурсами аэропортов. — Решение нетривиальных задач с картами, прогнозированием, планированием и моделированием. — Оптимизация производительности приложений и работа с интеграциями. Требования к кандидату: — Коммерческий опыт мобильной разработки от 4 лет (преимущественно React Native). — Опыт разработки/интеграции нативных модулей для iOS и Android. — Наличие опубликованных приложений в App Store / Google Play (готовность предоставить ссылки). — Основной стек: React Native, TypeScript/JS (ES6+), Redux Toolkit, MobX, REST API, WebSocket, GraphQL. Условия работы: — ИТ-аккредитация. — Бенефиты. — Расширенная ДМС. — Возможность работы над стратегическим проектом «с нуля» со сложной бизнес-логикой и множеством интеграций.

Location: Limassol, Cyprus; Paphos, Cyprus FlySto is a startup project with a small, distributed team. We have a server, web client, and Android and iOS apps – all written in Kotlin and supported by JetBrains. Modern aircraft, even small ones, are equipped with sophisticated avionics systems that measure various flight and engine parameters and record them to internal storage or memory cards. The resulting log files contain enough data to literally “replay” an entire flight, displaying the aircraft’s precise position and orientation, along with all instrument readings available to the pilots. Our product allows pilots to store and analyze their flights from different perspectives on the web and mobile devices. We are currently looking for a Lead Product Designer to join our team! In this role, you will: Guide a small team of product designers, ensuring team productivity and high-quality results. Own the design direction and lead large-scale initiatives from vision and strategy through execution. Take ownership of the design process hands-on – from research and problem framing to creating wireframes, mockups, and prototypes, as well as delivering a polished UI. Collaborate with product managers, developers, researchers, and stakeholders to define problems, align on goals, and ensure design solutions meet user and business needs. Effectively communicate design concepts and decisions to stakeholders and the team to promote alignment and understanding. Conduct and analyze usability testing and user research to create design solutions based on real user needs and behavioral data. We will be happy to have you on our team if you: Are proficient in Figma. Can apply an existing brand’s visual language consistently within product interfaces. Are able to clearly articulate design decisions, explain thought processes, identify issues, and justify proposed solutions. Have a realistic understanding of your strengths and areas for growth. Can participate actively in product discussions and cross-functional collaboration. Are able to guide tasks end to end, from design solution through implementation and user feedback. Feel comfortable working in a highly iterative environment and adapting solutions as the product evolves. We would be especially thrilled if you: Have experience designing mobile applications. Are interested in aviation, or even a pilot! #LI-REDER We are an equal opportunity employer We know great ideas can come from anyone, anywhere. That’s why we do our best to create an open and inclusive workplace – one that welcomes everyone regardless of their background, identity, religion, age, accessibility needs, or orientation. We process the data provided in your job application in accordance with the Recruitment Privacy Policy.

Location: CH - Shanghai, China Location: Tokyo, Japan(On-board in China) Scopely's Security team is looking for a Sr Client Security Engineer to build a new client security function in China. You will design and ship client/server-side protections for large-scale mobile games, combat sophisticated cheating ecosystems, and help ensure fair play for tens of millions of players. What You Will Do Build, and grow the Client Security team in China, setting China specific technical direction, and operational best practices. Design, implement, and maintain client-side detections against third‑party cheating tools, modified clients, hooking frameworks, and emulators on Android and iOS . Own the client security integration into Scopely's internal anti-cheat platforms working closely with teams to ensure detections are actionable and scalable. Define and evolve the obfuscation and hardening strategy for China mobile builds (e.g., binary protection, anti-debugging, anti-tamper, integrity checks), including evaluating and integrating third‑party hardening vendors where appropriate. Build and maintain strong coverage for the China mobile ecosystem , including: distribution through multiple Android app stores and OEM devices, diverse OS/ROM variants and rooted/jailbroken environments, and local PC/emulator-based cheating patterns. Contribute hands-on code (C++ plus Java/Kotlin and/or Objective‑C/Swift) in security‑sensitive paths, including detection logic, integrity checks, and secure client–server protocols. What You Will Need Experience in mobile security, game anti-cheat, or client-side security engineering, including time working directly on Android or iOS native code. Direct experience with reverse engineering. Deep hands-on experience with: Android and IOS internals hooking and instrumentation frameworks, and common mobile client security attack vectors. Strong proficiency in C/C++ and at least one mobile native language (Java/Kotlin for Android or Objective‑C/Swift for iOS), including experience shipping production code in large apps. Demonstrated experience designing and shipping client-side anti-cheat or integrity systems that integrate with server-side enforcement or analytics pipelines. Prior experience ing or technically directing a small engineering team Experience working with large-scale telemetry or anti-abuse pipelines and using data to tune detections and reduce false positives. Professional proficiency in both Mandarin and English, written and spoken Requires five days per week in the office Requires relocation to Tokyo Bonus Points BS / MS in Computer Science or Software Engineering or equivalent Experience shipping and securing mobile games or other large-scale consumer apps specific to the China market, specific exposure to: multiple Android app-store ecosystems and OEM variations, desktop/mobile emulator usage patterns, and tooling development experience specific for china mobile games Previous CTF experience, and CVE contributing experience Prior work on client obfuscation / hardening pipelines, including vendor evaluation and integration, and handling performance and stability tradeoffs. Familiarity with large-scale cloud environments, streaming data processing, and monitoring/alerting About Scopely Scopely is a leading video game and global interactive entertainment company, home to many of the world’s most beloved and enduring experiences, including two of the most successful mobile games of all-time “MONOPOLY GO!” and “Pokémon GO,” along with “Stumble Guys,” “Star Trek™ Fleet Command,” “MARVEL Strike Force,” “WWE Champions,” the Scrabble® franchise, “Yahtzee® With Buddies,” and many others. Across mobile, web, PC, and console, Scopely creates, develops, publishes, and live-operates one of the most diversified and award-winning portfolios in the games industry — bringing hundreds of millions of players together through a shared love of play. Founded in 2011, Scopely is powered by its exceptional team — including thousands of world-class gamemakers around the globe, a distinctive tenet-driven culture, and its proprietary technology platform, Playgami. Together, these strengths have fueled Scopely’s position as the #1 mobile games company in the U.S. and #2 globally, generating more than $10 billion in lifetime revenue. Whether building global sensations like “MONOPOLY GO!” from the ground up, or expanding through strategic acquisitions, including the FoxNext, GSN, and Scopely Explore games businesses — Scopely consistently delivers experiences players love today and return to for years to come. Recognized multiple times as one of the "100 Most Influential Companies in the World" by TIME magazine and one of Fast Company's "World's Most Innovative Companies" and “Best Workplaces for Innovators,” Scopely believes that video games can be a force for good — creating meaningful connections, vibrant communities, and making life better through play. Scopely has global operations and partners across four continents in more than a dozen countries worldwide. For more information, visit: https://www.scopely.com/ . Notice to Candidates: Scopely will never request payment or financial information during the application or hiring process. Please apply only through our official website and verify that all Talent Partner communications come from an email address ending in @ scopely.com . Should you have any questions or encounter any fraudulent requests/emails/websites, please immediately contact recruiting@scopely.com. Our job applicant privacy policies are available here: California Privacy Notice and EEA/UK Privacy Notice . Employment at Scopely is based solely on a person's merit and qualifications. Scopely does not discriminate against any employee or applicant because of race, creed, color, religion, gender, sexual orientation, gender identity/expression, national origin, disability, age, genetic information, veteran status, marital status, pregnancy or related condition (including breastfeeding), or any other basis protected by law. We also consider qualified applicants with arrest or conviction records, consistent with applicable federal, state and local law.

Задачи: — Разработка и поддержка высококачественных мобильных приложений на Flutter/Dart. — Интеграция с API и работа с сетевыми протоколами. — Построение сложных адаптивных интерфейсов и работа с анимациями. — Участие в проектировании архитектуры приложений. — Применение AI-инструментов в повседневной разработке (Cursor, Claude Code и др.). Требования: — Коммерческий опыт разработки на Flutter/Dart не менее 4 лет. — Уверенное владение Dart: ООП, типизация, обработка ошибок, дженерики, коллекции, асинхронность, изоляты. — Понимание внутреннего устройства Flutter и жизненного цикла виджетов. — Умение строить сложные адаптивные интерфейсы и работать с анимациями. — Понимание архитектурных подходов и принципов проектирования. — Знание сетевых протоколов и опыт интеграции с API. — Понимание платформ Android и iOS: возможности, ограничения, процесс публикации приложений. — Уверенное владение Git, Figma. — Портфолио с завершёнными Flutter-приложениями (желательно опубликованными в сторах). — Активное использование AI-инструментов в повседневной разработке (Cursor, Claude Code и др.) - обязательно. Будет плюсом: — Знание Kotlin или Swift на уровне, достаточном для понимания и доработки нативного кода. — Опыт написания unit/widget/golden тестов. — Базовое понимание CI/CD. — Опыт работы с библиотеками кодогенерации. Условия: — Оформление по ТК РФ или ИП. — Удаленная работа. — Работа в динамично развивающейся IT-компании.

Location: Amsterdam, Netherlands; Berlin, Germany; London, United Kingdom; Tel Aviv, Israel About Nebius: Nebius is leading a new era in cloud infrastructure for the global AI economy. We are building a full-stack AI cloud platform that supports developers and enterprises from data and model training through to production deployment, without the cost and complexity of building large in-house AI/ML infrastructure. Built by engineers, for engineers. From large-scale GPU orchestration to inference optimization, we own the hard problems across compute, storage, networking and applied AI. Listed on Nasdaq (NBIS) and headquartered in Amsterdam, we have a global footprint with R&D hubs across Europe, the UK, North America and Israel. Our team of 1,500+ includes hundreds of engineers with deep expertise across hardware, software and AI R&D. The role The YDB Development Team at Nebius is hiring mid- and senior-level software developers with C++ expertise. YDB is an open-source platform with two roles within Nebius: Providing the binary object storage foundation for S3 Object Storage, Shared Filesystems and Network Block Storage Serving as a distributed relational database and message broker for services such as IAM, billing, audit trails and logging We operate YDB clusters in more than 10 regions using HDD and NVMe storage. Individual clusters span tens of thousands of nodes, manage hundreds of petabytes of data and deliver terabytes per second of throughput. Our infrastructure includes x86 and Arm-based systems, including NVIDIA GB300 nodes. What you’ll work on Evolve YDB’s architecture for new hardware, redesigning core components when incremental optimization is insufficient: QLC NVMe drives: increase storage density while controlling RAM/CPU consumption and write amplification Dual 800 Gb/s network adapters: reduce CPU overhead and memory bandwidth consumption to utilize the available NIC bandwidth NVIDIA GB300-based systems: ensure efficient operation on Arm-based hosts and offload storage and networking processing to BlueField DPUs Support high-capacity SMR HDDs by designing data placement, sequential writes, garbage collection and recovery around zoned-write constraints Develop wide erasure-coding schemes to reduce space aplimfication while maintaining durability and availability Reduce recovery and rebalancing times after device outages while limiting the impact on foreground workloads Prevent, detect and recover from silent data corruption across memory, networking and storage Provide the system capabilities and interfaces required by fleet-wide automation so that hundreds of production clusters can be deployed, configured, upgraded, diagnosed and operated consistently We move quickly and focus on delivering practical value. Features and optimizations merged into the production branch are typically deployed within weeks. You’ll see your work solving real problems in live clusters—not waiting years to make an impact. Requirements: 5+ years of professional experience developing high-load systems in C or C++. Candidates with 3+ years will also be considered if their experience includes relevant work on distributed storage systems Experience developing high-performance, low-latency software components Understanding of core dumps, flame graphs and sanitizer-enabled builds Understanding of CPU caches, atomic operations and NUMA architectures Nice to have: Experience designing and developing production-grade distributed storage systems and/or databases Experience with on-disk data structures such as LSM trees and B+ trees, and storage algorithms such as erasure coding and checksumming Understanding of NVMe, conventional HDD and SMR HDD internals Experience with debugging and profiling tools such as perf, VTune, bpftrace and gdb Familiarity with the Linux kernel, SPDK/DPDK, libaio and io_uring Knowledge of IP, TCP, UDP and DNS, and ideally InfiniBand or RoCE/RDMA Experience with Kubernetes and Grafana Experience responding to production incidents Knowledge of availability and durability calculations For Senior candidates , we offer hybrid working or the flexibility to work remotely within EU. Benefits & Perks: Competitive compensation Career growth and learning opportunities Flexibility and ownership Collaborative and innovative culture Opportunity to work on impactful AI projects International environment and talented teams What's it like to work at Nebius: Fast moving - Bold thinking - Constant growth - Meaningful impact - Trust and real ownership - Opportunity to shape the future of AI Equal Opportunity Statement: Nebius is an equal opportunity employer. We are committed to fostering an inclusive and diverse workplace and to providing equal employment opportunities in all aspects of employment. We do not discriminate on the basis of race, color, religion, sex (including pregnancy), national origin, ancestry, age, disability, genetic information, marital status, veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by applicable law. Applicants must be authorized to work in the country in which they apply and will be required to provide proof of employment eligibility as a condition of hire. If you need accommodations during the application process, please let us know.

Задачи: — Разработка и развитие backend-сервисов на Node.js / TypeScript (NestJS). — Проектирование и реализация API и межсервисных взаимодействий. — Работа с асинхронными сценариями (RabbitMQ). — Использование Redis для кэширования и pub/sub. — Работа с базами данных MySQL, MongoDB, DynamoDB. — Работа с облачной инфраструктурой AWS (эксплуатация и развитие backend-сервисов). — Деплой и эксплуатация сервисов в Kubernetes. — Участие в code review и технических обсуждениях. — Взаимодействие с QA, iOS, Android и Design командами. Требования: — Опыт Backend-разработки от 6 лет (не фриланс). — Опыт Backend-разработки highload сервисов от 2 лет. — Опыт работы с Node.js от 5 лет в продуктовых компаниях. — Опыт работы с TypeScript и NestJS от 4 лет. — Опыт работы от 1 года с гибридным хранилищем: MySQL, Redis, MongoDB, DynamoDB – каждая БД под свою задачу. — Опыт работы с контейнеризацией и оркестрацией: Kubernetes. — Опыт работы с AWS: EKS, RDS, DynamoDB, S3. — Опыт с распределёнными системами: очереди, консистентность, отказоустойчивость. — Опыт использования LLM для работы обязательно. Условия: — Полностью удаленный формат работы (fully remote). — Гибкий график работы. — Оплачиваемый отпуск 28 календарных дней. — 100% оплата больничного. — Работа в продуктовой IT-компании.

Location: Montreal Workplace: remote ABOUT YOU   We are looking for a Senior Software Engineer (React Native) who is architecturally strong, quality-driven, and highly collaborative to join our Mobile Engineering team. The best candidate will be someone who thrives in a fast-paced, highly collaborative, and exceptionally dynamic setting and is excited to lead mobile architecture decisions, build scalable cross-platform applications, and drive shared code strategies across web and mobile ecosystems.   Strong expertise in React Native and JavaScript/TypeScript, along with deep knowledge of mobile architecture patterns and state management, is essential, along with experience in building and delivering commercial mobile applications from concept to launch. The ability to design scalable architectures, implement robust testing strategies (including E2E), optimize performance, and mentor other developers while collaborating across cross-functional teams will be key to your success in this role.   If you're passionate about building high-quality mobile experiences that scale and love creating seamless app ecosystems that power gaming, virtual currency, and digital commerce experiences, we would love to hear from you!   ABOUT US   Xsolla is a global commerce company with robust tools and services to help developers solve the inherent challenges of the video game industry. From indie to AAA, companies partner with Xsolla to help them fund, distribute, market, and monetize their games. Grounded in the belief in the future of video games, Xsolla is resolute in the mission to bring opportunities together, and continually make new resources available to creators. Headquartered and incorporated in Los Angeles, California, Xsolla operates as the merchant of record and has helped over 1,500+ game developers to reach more players and grow their businesses around the world. With more paths to profits and ways to win, developers have all the things needed to enjoy the game. For more information, visit xsolla.com. Responsibilities: Develop and maintain mobile applications using React Native for iOS and Android platforms Implement best practices for mobile development, including code review, testing strategies, and CI/CD processes Build scalable and maintainable features within the existing application architecture Collaborate with product and design teams to implement technical solutions that meet business goals Integrate mini-apps and virtual currency systems with the Xsolla App ecosystem Work with cross-functional teams, including developers, QA engineers, and project managers Participate in technical discussions to align development work with business objectives Communicate effectively across distributed teams Deliver high-quality features on time throughout the development lifecycle Architecture & Design Design and implement scalable application architecture for React Native mobile apps with a focus on maintainability, performance, and developer experience Lead architectural decisions around shared code strategies between React web and React Native mobile platforms Establish and enforce coding standards, design patterns, and best practices across the mobile development team Create technical specifications and architecture documentation for complex features and systems Monorepo Management Build and maintain a robust monorepo infrastructure using tools like Nx, Turborepo, or similar Configure and optimize build pipelines, dependency management, and workspace configurations Implement efficient caching strategies and incremental builds to optimize CI/CD performance Manage versioning, publishing, and dependency relationships between packages Component Ecosystem & Code Sharing Design and develop a comprehensive shared component library that works seamlessly across React and React Native Create platform-agnostic business logic, utilities, and services that can be consumed by both web and mobile Implement adaptive components with platform-specific implementations where necessary while maintaining a unified API Establish patterns for sharing type definitions, hooks, contexts, and state management across platforms Build tooling and documentation to enable other developers to easily leverage shared code Development & Delivery Build high-quality, production-ready mobile applications using React Native for iOS and Android Implement pixel-perfect, responsive UIs that align with design specifications Optimize app performance, bundle size, and startup time Integrate native modules when React Native APIs are insufficient End-to-End Testing & Quality Assurance Design and implement comprehensive E2E testing strategies for React Native applications using tools like Detox, Maestro, or Appium Create reliable, maintainable test suites that run consistently across iOS and Android platforms Establish testing patterns and utilities that can be shared across multiple apps in the monorepo Configure E2E tests to run in CI/CD pipelines with proper device/simulator management Build test infrastructure for critical user flows, edge cases, and platform-specific behaviors Implement visual regression testing and snapshot testing where appropriate Define testing standards and best practices for the team, including when to use unit, integration, and E2E tests Collaboration & Mentorship Collaborate with web developers to identify opportunities for code sharing and architectural alignment Mentor junior and mid-level developers on React Native best practices and monorepo patterns Conduct thorough code reviews with focus on architecture, patterns, and maintainability Work closely with product, design, and backend teams to deliver cohesive user experiences Qualifications & Skills: 5+ years of experience in mobile application development with a strong focus on React Native Proven track record of delivering commercial mobile applications from concept to launch Proficiency in React Native and JavaScript/TypeScript, with knowledge of native modules (Swift/Kotlin) as a plus Strong understanding of mobile architecture patterns and state management Experience with third-party integrations and APIs Strong problem-solving abilities and a results-driven approach Effective communication skills, both written and verbal Familiarity with gaming ecosystems and virtual currency platforms is a plus Bachelor's degree in Computer Science, Engineering, or a related field (or equivalent experience) Benefits:We are passionate about fostering a supportive environment for our team, so we prioritize the physical, mental, and emotional well-being of our employees and their families through a comprehensive Benefits Program. This includes medical, dental, and vision, PTO, and a personalized career roadmap for each employee. By investing in professional development through training and educational opportunities, we ensure that our team thrives both personally and professionally. Together, we’re not just building a business; we’re cultivating a community that values creativity, collaboration, and the transformative power of play.    Equal Employment Opportunity Statement: Xsolla is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We do not discriminate based on race, color, religion, sex, national origin, age, disability, sexual orientation, gender identity, or any other characteristic protected by law. We consider qualified applicants with criminal histories in accordance with the Fair Chance Act.   Criminal History Consideration: For the Senior Software Engineer(React Native), we will conduct a background check that may include the following. Criminal history check. Employment verification. Education verification.   Relevance to job Responsibilities: The background check is relevant to this position because of the following role responsibilities: Accessing confidential company data Ensuring compliance with regulatory requirements Handling sensitive financial information/ managing budgets /accessing funds

Location: Europe Workplace: fully About The Role: At Paysend , our products handle millions of money movements across markets , where reliability and accuracy are critical. Behind every transaction is a complex set of systems and processes that need to work exactly as expected. We are looking for a QA Engineer to join our team and help ensure the quality and reliability of our web and mobile products. You will test real-world customer scenarios across multiple platforms and services, investigating issues across APIs, microservices, databases, and asynchronous processes to understand what happens at every step. We are looking for someone who combines strong testing fundamentals with technical curiosity and a practical understanding of how complex products work. What You'll Do (Responsibilities): Functional, regression and acceptance testing of user scenarios across web, iOS and Android. Testing money flows: transfers, card top-up/withdraw, FX and rates, tariffs, limits, fees, bonuses and referrals. Testing onboarding and KYC, including the integration with our verification provider (Sumsub). Testing payment and authentication integrations: 3DS/SCA, Google Pay, Apple Pay, OTP and passcode. API testing (REST/gRPC): inspecting requests, responses and traces, validating contracts and error handling. Testing interaction between microservices: asynchronous scenarios, events in queues, idempotency, retries and degradation paths. Verifying state in the database: transaction and process statuses, balances, profile data. Requirements analysis and participation in grooming: reviewing user stories, raising questions about design and logic early, assessing risk. Designing and maintaining test cases and test plans, tracking defects in Jira, taking part in release checks. Preparing test data and working with test environments. Mentoring junior colleagues and helping evolve QA practices and processes in the team. What You’ll Need To Be Successful In This Role: 6+ years in manual testing, a meaningful part of it in fintech, banking, payments or another product that moves money. Experience testing a single product across web and mobile (iOS/Android), with a good grasp of cross-device and responsive specifics. Experience with and understanding of testing microservice-based applications: how to test a service in isolation and in combination, where to look for the root cause of a failure, what an asynchronous scenario is and why it breaks. Hands-on experience with message brokers (Kafka, RabbitMQ or similar): reading and publishing messages, verifying events within a scenario. Practical API testing: Postman/Insomnia or equivalents, working with REST, reading logs and traces; gRPC is a plus. Confident SQL at the level of queries and joins (PostgreSQL or a similar database). Basic programming skills in any language (Python, Java, JavaScript, etc.) — enough to write a script, read someone else's code and prepare test data. Experience using AI tools to optimise and automate day-to-day work: generating and reviewing test cases, analysing logs, preparing data, speeding up routine tasks. Experience with a test management system (Allure TestOps or similar) and Jira, and the ability to write clear, reproducible bug reports with enough context for a developer. Confident use of browser dev tools and a debugging proxy for network inspection (Charles, Proxyman, Fiddler). Systems thinking: the ability to decompose a scenario and find edge and negative cases, not just walk the happy path. English at a level that supports fluent working communication in a distributed team. Nice To Have: Domain knowledge: the payment lifecycle, transaction statuses, currency conversion, fees and limits, KYC/AML requirements as they show up in the user journey. Experience with Google Cloud Platform An understanding of how E2E automation works (Playwright, visual regression) and the ability to shape manual coverage so that it complements it. Experience with server-driven UI or configuration-driven scenarios. Why Join Paysend? Make a Global Impact: Join a company that is transforming how people and businesses move money around the world. Your work will contribute to products and services that help millions of customers stay connected globally. Own Meaningful Outcomes: We empower our people to take ownership, make decisions, and drive real impact. You'll have the opportunity to shape solutions, challenge the status quo, and see the results of your work firsthand. Grow with Us: As a fast-growing global fintech, we offer opportunities to learn, develop new skills, take on new challenges, and advance your career across functions and geographies. Collaborate with Exceptional People: Work alongside talented colleagues from diverse backgrounds and disciplines who are united by a shared ambition to build, innovate, and deliver great outcomes for our customers. Move Fast and Make Things Happen: We value action, curiosity, and continuous improvement. You'll be part of a culture that encourages experimentation, embraces change, and focuses on delivering meaningful results. Be Part of Our Journey: We're building the future of the global money movement. Join us at an exciting stage of growth where your ideas, expertise, and contributions can help shape what's next.