Вакансии

-проектировать архитектуру приложений: backend, frontend, БД, API и интеграции. -декомпозировать крупные задачи и проекты до понятных этапов и оценивать трудозатраты.

Location: Americas; EMEA Workplace: Remote RevenueCat gives app businesses the infrastructure and tools to build, run, and improve their monetization. Since graduating from YC's S18 batch, we've grown into the default monetization platform for mobile. We're in 50%+ of newly shipped subscription apps, we process $16B+ in annual purchase volume, and we help everyone from a solo developer to the OpenAI mobile team understand and grow their revenue. We're a remote-first team of 150+ people across 25+ countries, guided by values we actually practice: Customer Obsession, Always Be Shipping, Own It, and Balance. This isn't the right fit for everyone. The systems you’ll build here manage billions of dollars and touch hundreds of millions of end users, and we don’t take that lightly. You'll be expected to work hard and hold a high bar for what you ship, alongside some of the sharpest, most driven people you've worked with. If that sounds energizing rather than exhausting, keep reading. THE ROLE We are looking for a Senior SDK Engineer to join our team to help design, build, ship, and support end-to-end features and products that will help developers make more money. We want to bring somebody onboard that is product focused, customer focused, and passionate about building mobile SDKs with a great developer experience. This role will primarily focus on either our iOS or Android SDK (depending on your core experience), but also requires contributions to our other platform + hybrid SDKs, from time to time. Experience in these other platforms is not a requirement but the desire and excitement to work on them is. ABOUT YOU: - You have 8+ years of experience in software, and have shipped mobile apps to Apple App Store or Google Play Store - You are very experienced in Swift and Swift UI (iOS) or Java/Kotlin and Compose UI (Android) - You are not afraid of iOS, Android, cross platform, or hybrid platforms. - You love making products for developers. - You love shipping good products. - You have deep empathy for customers. - You know how to ship high quality code using good testing practices in iterative cycles. - You collaborate well with others and can communicate effectively in a fully-remote culture. - You are proactive. When you see something broken, you jump on it to fix it or suggest improvements. - You move fast, test, and iterate quickly. - You ask questions when you're stuck on something. - You are excited to be part of a growing team. BONUS: - You have experience building SDKs. - You have experience in server driven user interfaces. - You have shipped your own app to Google Play or the App Store. - You have experience in Python or other backend development. IN THE FIRST MONTH, YOU'LL: - Learn about our customers, our SDK, the in-app subscription ecosystem, the problems RevenueCat helps solve, and how our SDKs fit into that. - Open your first pull request and deploy changes to be used by 32,000+ apps. - Onboard into our codebase by working on your very first project and shipping it 😺 - Learn how we maintain as much transparency as possible with our work in GitHub. - Begin reviewing code and add to our engineering culture. WITHIN THE FIRST 3 MONTHS, YOU'LL: - Be able to scope and work on projects self-sufficiently. - Participate in code reviews, and contribute in other ways (testing, visibility, etc.) to improve reliability and quality of the codebase. - Understand every product owned by your team. - Understand and improve many of the codebases that the team works with. WITHIN THE FIRST 6 MONTHS, YOU'LL: - Be the most knowledgeable person on several key features. - Have your own initiatives for improving the code base and our infrastructure. - Contribute to the team roadmap and technical direction. - Have shipped a major product or feature. WITHIN THE FIRST 12 MONTHS, YOU'LL: - Know more about mobile subscriptions than anyone ever should. - Use your knowledge to contribute ideas to RevenueCat’s suite of solutions. - Be able to spec, architect and build any feature we might want to build. - Have experience in all areas of technology stack related to SDKs and be the primary expert/owner of at least one area. - Help mentor and onboard new engineers, shaping the RevenueCat engineering culture as we continue to expand the team. - Help prioritize the roadmap to provide maximum value to developers, while pushing the team and technology forward. WHAT WE OFFER: - Competitive equity in a fast-growing, Series C startup backed by top-tier investors, including Y Combinator - 10-year window to exercise vested equity options - A fully remote environment designed around autonomy and flexibility - 4-5 weeks of flexible time off annually - Paid desk at a co-working space - Workspace budget and continuous learning stipend INTERVIEWING AT REVENUECAT Our interview process is rigorous on purpose. We want to be sure that everyone we bring on is genuinely excited about this work, aligned with how we operate, and ready to meet our high bar for performance. Curious what that actually looks like? Read more in our blog post on how we hire at RevenueCat https://www.revenuecat.com/blog/company/how-we-hire-at-revenuecat/, including tips to help you succeed. MORE ON HOW WE WORK: - How we think about hiring and team design: Building a Winning Team https://app.notion.com/p/Building-a-Winning-Team-69e431c4c3df4b13961523cd93c0e9bf?pvs=21 - The values that guide how we work: Our Values https://www.revenuecat.com/blog/values/ - How we work as a remote team: How We Work Remotely at RevenueCat https://www.revenuecat.com/blog/how-we-work-remotely-at-revenuecat/ - What to expect from our interview process: Interview Expectations https://app.notion.com/p/RevenueCat-Interview-Expectations-1bdcb1a108b0800c8941def0f076f9e2?pvs=21 - What to expect from comp and employment: Employment FAQ https://app.notion.com/p/RevenueCat-Compensation-Employment-Overview-184cb1a108b0801398d4e525928597ab?pvs=21

Проектирование и развитие архитектуры проектов, принятие ключевых технических решений. Работа с командой: перформанс-ревью и код-ревью, декомпозиция и приоритизация задач.

— Управление delivery кросс-функциональной IT-команды: Backend, Frontend, Mobile, QA, аналитика. — Планирование спринтов, управление backlog, scope и приоритетами.

🎯 Требования: Опыт разработки банковских дистанционных сервисов; Знание банковской предметной области;

-Создавать Web API, фоновые сервисы и обработчики сообщений.

Location: Warsaw, Mazowieckie, Poland; Sofia City, Bulgaria; Limassol, Cyprus Workplace: hybrid Capital.com builds and operates web and mobile trading platforms, public and partner APIs, and the backend services behind them, all in a highly regulated environment. As Application Security Architect, you will be the senior design authority for the security of these products. You will set the direction for how we secure software at scale: you will own secure-by-design patterns and standards, lead threat modelling and architecture reviews, and define the application security baseline that engineering teams build against. Working closely with the Product Security team and the Director of Product Security, you will guide AppSec processes and set the vision for your area without direct line management. You will treat security as a shared outcome rather than a gate, balancing strong protection with developer experience and delivery speed, and you will earn adoption through enablement rather than mandates. Responsibilities: Security Architecture & Standards: Define and maintain secure-by-default reference architectures for common patterns: web apps, mobile backends, microservices, public and partner APIs, and event-driven services Own core application security architecture decisions: authentication and authorisation, session management, API security, secrets management, multi-tenant isolation, and security logging and auditing Lead the redesign of user authentication and the delivery of security features into the product Develop and roll out application security standards, secure-coding guidelines, configuration standards, reusable design patterns, and architecture decision records (ADRs) that engineers can apply without a security expert in the room Define internal policies for the safe use of AI-assisted and vibe-coding tools Define security requirements for acquired technology and guide its secure integration Threat Modelling & Design Review: Establish and run a threat-modelling operating model, covering scope, cadence, templates, and facilitation, proportionate to each product's risk tier Own the security review stage of the new product approval process, covering architecture design and configuration Lead design reviews for high-impact initiatives: new products, new auth flows, payment and sensitive-data flows, platform migrations, and major refactors Identify design-level risks and agree practical, prioritised mitigations with engineering teams Secure SDLC, DevSecOps & Supply Chain: Assess the current state of application security, propose improvements, and drive the secure SDLC strategy with Engineering and Security leadership Oversee AppSec processes and own the tooling strategy (SAST, DAST, IAST, SCA, and secrets scanning), including how findings flow back to engineering Embed security controls as guardrails in CI/CD through policy-as-code, with agreed enforcement and escalation paths Partner with DevOps to organise repository management and prevent supply-chain attacks, covering safe component usage, dependency management, SBOMs, and build integrity Improve the security of our internal tools Requirements: Experience: 8+ years in technology, including 5+ years in a dedicated application or product security role, with a strong engineering background and hands-on architecture or design ownership Proven track record creating, documenting, and rolling out security standards, patterns, and best practices across a complex engineering organisation Deep, demonstrable threat-modelling experience across product portfolios Technical: Experience designing and implementing a secure SDLC in a cloud-native environment. Strong AWS knowledge is required, and exposure to GCP or other clouds is welcome Strong command of OWASP standards (Top 10, ASVS) and DevSecOps practice, including AppSec tooling (SAST, DAST, IAST, SCA, secrets scanning) and vulnerability management Deep understanding of modern distributed architectures: microservices, REST and GraphQL APIs, event-driven systems, OAuth2/OIDC, and containerised workloads (Docker, Kubernetes). You should be able to reason about their trust boundaries, attack surface, and data flows across web and mobile clients Collaboration: Exceptional ability to influence and align engineering teams without direct authority, and to brief both engineers and executives Pragmatism and strategic thinking: you balance the ideal with the achievable, protect delivery throughput, and turn long-term direction into an actionable plan Clear written communication through diagrams, ADRs, and patterns, plus a track record of mentoring and cross-functional collaboration Nice to have: Experience in fintech, trading, brokerage, or another regulated environment Awareness of relevant regulatory and compliance drivers: FCA and CySEC operational resilience, GDPR, and PCI DSS Software supply-chain security, including SBOMs and artifact and build integrity Experience securing AI-integrated product features, or using AI to scale an AppSec programme Experience building or running a Security Champions programme CSSLP, GIAC GDSA, or a hands-on offensive security certification. Certifications are valued but secondary to demonstrated experience What you'll get in return: You will join the company, that cares about work and life balance Annual Bonus based on the performance review cycle Generous Annual Leave Policy Medical Insurance and Pension fund, with additional benefit packages based on the location Hybrid working model (3 days from our modern office and 2 days fully remotely) Comprehensive Workation Policy with 30 more remote days available. Possibility of taking two additional days of paid leave per year to dedicate to volunteering efforts.

О компании OperAI — интерактивная система на базе ИИ для управления операционной деятельностью компании. Цель — создать «второй мозг для CEO», сделать процессы прозрачными и управляемыми, помочь руководителям видеть риски, договорённости и реальное состояние компании. Сейчас запускают пилоты с первыми командами и проверяют продуктовые гипотезы. Требования: — Опыт в продуктовой или data-аналитике от 3 лет — Опыт проектирования архитектуры данных и построения аналитической инфраструктуры с нуля — Умение создавать модели, схемы и пайплайны для сбора, обработки и хранения структурированных и неструктурированных данных, в том числе с AI — Практический опыт работы с неструктурированными данными: переписками, расшифровками встреч, документами и корпоративными коммуникациями — Опыт построения процессов разметки данных: разработка схем разметки, критериев качества и инструкций для разметчиков — Уверенное владение SQL и Python для анализа и обработки данных — Понимание ETL/ELT-процессов, требований к качеству данных и принципов Data Governance — Глубокое понимание принципов работы LLM, embeddings, RAG и AI-агентов — Умение проектировать метрики и системы оценки AI-функций: точность, полнота, галлюцинации и реальная польза для пользователя — Готовность брать на себя ответственность и строить аналитическую функцию продукта с нуля Задачи: — Проектировать систему внутренней аналитики — Проектировать структуру хранения данных: события, встречи, задачи, решения, коммуникации и связи между ними — Помогать формировать единую модель данных для AI-функций продукта — Оценивать качество работы LLM: точность извлечения фактов, полноту, галлюцинации и полезность результатов — Разрабатывать подходы к разметке данных и созданию датасетов для тестирования AI-системы — Участвовать в проектировании AI-пайплайнов, RAG, embeddings и систем поиска по корпоративным данным — Находить закономерности в операционных процессах клиентов и превращать их в продуктовые решения — Определять ключевые продуктовые метрики и строить дашборды для команды и фаундеров — Анализировать поведение пользователей, пилотные запуски и продуктовые гипотезы — Вместе с разработчиками улучшать качество, наблюдаемость и надёжность продукта Будет большим плюсом: — Опыт проектирования архитектуры AI- или ML-систем — Работа с LLM API, векторными базами, LangChain/LangGraph или аналогичными инструментами — Опыт построения систем мониторинга и оценки качества LLM — Понимание операционной деятельности компаний: задач, встреч, решений, ответственности, сроков и отчётности — Опыт работы с BI-инструментами и продуктовыми системами аналитики — Опыт в B2B SaaS, стартапах или продуктах для руководителей и команд — Опыт взаимодействия с data engineering, ML и backend-командами Условия: — Equity-модель компенсации на начальном этапе — опцион — Возможность с нуля построить аналитику AI-продукта — Высокое влияние на архитектуру, продуктовые решения и развитие компании — Прямая работа с фаундерами — Пилотные клиенты и реальные данные для проверки гипотез — Гибкий формат работы и быстрый цикл принятия решений — Возможность вырасти в Head of Data / AI Analytics по мере развития проекта

Location: Bengaluru, Karnataka, India, APAC From Fivetran’s founding until now, our mission has remained the same: to make access to data as simple and reliable as electricity. With Fivetran, customer data arrives in their warehouses, canonical and ready to query, with no engineering or maintenance required. We’re proud that more organizations continue to leverage our technology every day to become truly data-driven. About Us Fivetran and dbt Labs are bringing together two industry-leading companies with a shared mission: helping organizations unlock the full value of their data. Together, we’re delivering the data infrastructure layer that helps organizations move, transform, and trust their data — from the moment data moves, through every transformation, to the context teams and AI systems rely on. Fivetran helps organizations automate data movement across the systems, clouds, engines, and tools they rely on. dbt Labs pioneered analytics engineering, helping teams transform data into reliable, governed insights. Together, we support thousands of organizations as they build a trusted foundation for analytics, AI, and better business decisions. As we bring our teams and technology together, we’re building on the strengths of both companies while continuing to deliver the products and experiences our customers know and trust. It’s an exciting time to join us: we’re creating a company with the scale, talent, and technology to help more organizations put their data to work with greater speed, confidence, and impact. During this transition period, you may see references to both Fivetran and dbt Labs throughout our recruiting process as we integrate our teams, systems, and career sites. About the Role We’re looking for a Senior Software Development Engineer in Test with extensive industry experience to define and execute the design, development, and maintenance of Fivetran’s test automation tools and framework using reliable and scalable techniques. As a Senior SDET, you will focus on solving complex testing difficulties by designing, developing and improving automation and reporting frameworks. You will invest in improving test stability and performance of the framework by developing innovative solutions to boost Fivetran’s testing efficiency. You will also coach Fivetran quality engineers to be the best in class automation engineers, and will continuously work with the team to ensure high standards for automation. The ideal candidate will be highly technical, detail-oriented, creative, motivated, and focused on achieving results. This is a full-time position based out of our Bangalore office. Our hybrid work model offers a blend of remote flexibility and in-person collaboration, including two days in the office each week to connect and build as a team. Technologies You’ll Use Java11, JUnit5, Docker and Kubernetes AWS, GCP Terraform, WireMock, RestAssured Bazel, BuildKite What You’ll Do Review requirements, specifications and technical design documents to provide meaningful, risk-focused feedback. Design and evolve scalable automation frameworks in Java with a strong emphasis on reliability, performance, and data correctness. Write high-signal test strategies for complex features and automate them across multiple environments. Improve CI/CD pipelines by building robust validation layers that prevent silent failures and regressions. Build internal tools and proof-of-concepts using AI/LLM technologies to: Accelerate debugging and failure triaging Generate high-quality test scenarios Detect flaky patterns or regression risks Improve log analysis and root-cause identification Enhance developer and QA productivity Design AI-assisted workflows that integrate seamlessly into the existing automation and release pipelines. Experiment with and implement agent-based systems or LLM-powered tooling that streamline development and testing processes. Actively measure and improve engineering impact through reliability metrics, automation efficiency, and defect prevention signals. Collaborate with engineering teams to drive a culture of quality ownership and automation-first thinking. Skills We’re Looking For 5+ years of experience in the software industry with strong passion for quality, automation, and engineering excellence. Deep understanding of OOP principles and strong proficiency in Java. Expertise in designing scalable automation frameworks and identifying negative, edge, and high-risk scenarios. Strong understanding of distributed systems risks such as schema drift, idempotency failures, data inconsistencies, and race conditions. Hands-on experience with cloud platforms (AWS, GCP, Azure) and containerized environments (Docker, Kubernetes). Experience building and maintaining CI/CD pipelines with tools such as Jenkins, CircleCI, Buildkite. Experience working with backend automation frameworks. Knowledge of database testing and ETL/data pipeline validation is a strong plus. AI & Productivity Engineering Demonstrated ability to leverage AI/LLM tools to significantly accelerate development, debugging, test design or automation activities. Experience building AI-assisted tools, workflows, or agents that integrate into engineering pipelines. Ability to design prompt strategies, validate LLM outputs rigorously and implement safeguards to prevent hallucinations or unsafe automation. Experience streamlining workflows using AI to improve measurable engineering productivity. Comfortable feeding, tuning and orchestrating AI agents to solve real engineering problems. Strong outcome orientation, measures success through impact, reliability gains and velocity improvements rather than output volume. #LI-HYBRID #LI-VM1 Perks and Benefits 100% employer-paid medical insurance * Generous paid time away from work, including paid vacation or flexible/unlimited vacation depending on role and country, plus paid sick time, inclusive parental leave, paid holidays, including a year-end Global Week of Rest, and volunteer days off. RSU stock grants* Professional development and training opportunities Company virtual happy hours, free food, and fun team-building activities Monthly cell phone stipend Access to an innovative mental health support platform that offers personalized care and resources in areas such as: therapy, coaching, and self-guided mindfulness exercises for all covered employees and their covered dependents. * May vary by country and worker type - please reach out to your recruiter for more information Click here to learn more about Fivetran's Benefits by Region. We’re honored to be valued at over $5.6 billion , but more importantly, we’re proud of our core values of Get Stuck In, Do the Right Thing, and One Team, One Dream . Read about us in Forbes . Fivetran brings together high-quality talent across the globe to make data access as easy and reliable as electricity for our customers. We value and recognize that our customers benefit from having innovative teams made of people from many backgrounds, experiences, and identities. Fivetran promotes diversity, equity, inclusion & belonging through attracting, recruiting, developing, and retaining a diverse workforce, not only because it is the right thing to do, but because it helps us build a world-class company to better serve our customers, our people and our communities. To learn more about Fivetran’s culture and what it’s like to be part of the team, click here and enjoy our video. To learn more about our candidate privacy policy, you can read our statement here . We are committed to ensuring that all candidates have an equal opportunity to participate in our interview process. If you require accommodations at any stage of the process due to a disability, medical condition, or any other circumstance, please don't hesitate to submit your request by filling out this form . We will work with you to provide reasonable accommodations to facilitate your participation and ensure a fair and accessible interview experience. Your request and any information provided will be kept confidential and will not impact your candidacy. We look forward to hearing from you and accommodating your needs to the best of our ability.

As a Senior Elixir Engineer, you'll own backend and full-stack feature delivery on Phoenix and LiveView — designing resilient OTP systems, clean APIs, and real-time user experiences that scale to millions of users. Model and evolve data with Ecto and PostgreSQL, writing performant queries and safe, zero-downtime migrations.

Location: United States Workplace: Remote BUILDING THE FUTURE OF OPEN FINANCE Payward - the parent company behind Kraken, NinjaTrader, Breakout, xStocks, Payward Services and CF Benchmarks - has spent the last 15 years building one of the most modern and globally accessible financial infrastructure platforms in the industry, built to advance an open, global financial system. PROOF OF WORK   THE TEAM Founded in 2011, Kraken is one of the world's longest-standing crypto platforms, trusted by over 10 million individuals and institutions across the globe. It offers spot trading, margin, futures, staking, and OTC services, with products built for both individual investors and institutional clients. The Agent Systems team is a 0→1 engineering group building internal AI-powered agents that interact directly with company systems. The mandate is to dramatically increase internal speed of execution through automation, intelligent inference, and workflow orchestration. This team operates at the intersection of AI, backend systems, and applied product engineering. The work is pragmatic and fast-moving — prototypes are expected, but the bar for production reliability remains high. Engineers on this team move fluidly between experimentation and shipping, building systems that reason over user interactions and take meaningful action across internal tools. You’ll work closely with cross-functional partners across product, infrastructure, and internal operations to deploy agent-driven capabilities that compound leverage across the organization.   THE OPPORTUNITY - Build and ship AI-powered agent systems that automate internal workflows and decision paths - Design and implement inference pipelines that reason over user interactions across internal systems - Prototype quickly to validate agent behaviors, then productionize what proves valuable - Architect backend services that integrate with multiple internal APIs and data sources - Define patterns for safe, observable, and controllable agent execution - Collaborate cross-functionally to identify high-leverage automation opportunities - Improve system speed, reliability, and signal quality as usage scales - Contribute to foundational design decisions for a 0→1 agent platform   SKILLS YOU SHOULD HODL - 5+ years of experience building and shipping production software systems - Strong backend engineering fundamentals (APIs, distributed systems, data modeling, reliability) - Experience building fullstack systems, with comfort working across backend and occasional frontend surfaces - Hands-on experience working with AI/ML systems, LLMs, or inference pipelines in production - Ability to prototype rapidly while maintaining a clear path to production-grade architecture - Strong systems thinking — able to reason about orchestration, failure modes, and observability - Comfort operating in ambiguous, 0→1 environments with high ownership   NICE TO HAVES - Experience building or operating agent-based systems or autonomous workflows - Familiarity with prompt engineering, evaluation frameworks, or model performance tuning - Experience integrating with internal enterprise systems (CRM, support tools, analytics platforms, etc.) - Background in building developer platforms or internal tooling - Experience designing guardrails, sandboxing, or safety layers for AI systems Unless a specific application deadline is stated in the job posting, applications are accepted on an ongoing basis. Please note, applicants are permitted to redact or remove information on their resume that identifies age, date of birth, or dates of attendance at or graduation from an educational institution. We consider qualified applicants with criminal histories for employment on our team, assessing candidates in a manner consistent with the requirements of the San Francisco Fair Chance Ordinance. OUR COMMITMENT Payward is powered by people from around the world and we celebrate the diverse talents, backgrounds, contributions, and unique perspectives that everyone brings to the table. We hire based on merit, seeking out people with the right abilities, knowledge, and skills for the job. We encourage you to apply for roles where you don't fully meet the listed requirements, especially if you're passionate or knowledgeable about crypto. We may ask candidates to complete job-related skills or work-style assessments as part of our hiring process. These assessments evaluate competencies relevant to the role and are applied consistently across candidates for similar positions. Results are considered alongside experience and interviews, and are not the sole basis for any employment decision. As an equal opportunity employer, we don't tolerate discrimination or harassment of any kind, whether based on race, ethnicity, age, gender identity, citizenship, religion, sexual orientation, disability, pregnancy, veteran status, or any other protected characteristic as outlined by federal, state, or local laws. Stay connected Follow us on Twitter https://twitter.com/krakenfx Learn on the Kraken Blog https://blog.kraken.com/#:~:text=Enter%20your%20email%20address Connect on LinkedIn https://www.linkedin.com/company/kraken-exchange/ Candidate Privacy Notice https://www.kraken.com/legal/candidate-privacy-notice

Location: United Kingdom; Brazil; United Arab Emirates; Ireland; Peru; Sweden; Colombia; Argentina; Romania; Cyprus; Switzerland; Portugal; Lithuania; South Africa; Czech Republic; Canada; Hungary; Mexico; Chile; Poland; Spain; Bulgaria Workplace: Remote BUILDING THE FUTURE OF OPEN FINANCE Payward - the parent company behind Kraken, NinjaTrader, Breakout, xStocks, Payward Services and CF Benchmarks - has spent the last 15 years building one of the most modern and globally accessible financial infrastructure platforms in the industry, built to advance an open, global financial system. PROOF OF WORK   THE TEAM Founded in 2011, Kraken is one of the world's longest-standing crypto platforms, trusted by over 10 million individuals and institutions across the globe. It offers spot trading, margin, futures, staking, and OTC services, with products built for both individual investors and institutional clients. The Agent Systems team is a 0→1 engineering group building internal AI-powered agents that interact directly with company systems. The mandate is to dramatically increase internal speed of execution through automation, intelligent inference, and workflow orchestration. This team operates at the intersection of AI, backend systems, and applied product engineering. The work is pragmatic and fast-moving — prototypes are expected, but the bar for production reliability remains high. Engineers on this team move fluidly between experimentation and shipping, building systems that reason over user interactions and take meaningful action across internal tools. You’ll work closely with cross-functional partners across product, infrastructure, and internal operations to deploy agent-driven capabilities that compound leverage across the organization.   THE OPPORTUNITY - Build and ship AI-powered agent systems that automate internal workflows and decision paths - Design and implement inference pipelines that reason over user interactions across internal systems - Prototype quickly to validate agent behaviors, then productionize what proves valuable - Architect backend services that integrate with multiple internal APIs and data sources - Define patterns for safe, observable, and controllable agent execution - Collaborate cross-functionally to identify high-leverage automation opportunities - Improve system speed, reliability, and signal quality as usage scales - Contribute to foundational design decisions for a 0→1 agent platform   SKILLS YOU SHOULD HODL - 5+ years of experience building and shipping production software systems - Strong backend engineering fundamentals (APIs, distributed systems, data modeling, reliability) - Experience building fullstack systems, with comfort working across backend and occasional frontend surfaces - Hands-on experience working with AI/ML systems, LLMs, or inference pipelines in production - Ability to prototype rapidly while maintaining a clear path to production-grade architecture - Strong systems thinking — able to reason about orchestration, failure modes, and observability - Comfort operating in ambiguous, 0→1 environments with high ownership   NICE TO HAVES - Experience building or operating agent-based systems or autonomous workflows - Familiarity with prompt engineering, evaluation frameworks, or model performance tuning - Experience integrating with internal enterprise systems (CRM, support tools, analytics platforms, etc.) - Background in building developer platforms or internal tooling - Experience designing guardrails, sandboxing, or safety layers for AI systems       Unless a specific application deadline is stated in the job posting, applications are accepted on an ongoing basis. Please note, applicants are permitted to redact or remove information on their resume that identifies age, date of birth, or dates of attendance at or graduation from an educational institution. We consider qualified applicants with criminal histories for employment on our team, assessing candidates in a manner consistent with the requirements of the San Francisco Fair Chance Ordinance. OUR COMMITMENT Payward is powered by people from around the world and we celebrate the diverse talents, backgrounds, contributions, and unique perspectives that everyone brings to the table. We hire based on merit, seeking out people with the right abilities, knowledge, and skills for the job. We encourage you to apply for roles where you don't fully meet the listed requirements, especially if you're passionate or knowledgeable about crypto. We may ask candidates to complete job-related skills or work-style assessments as part of our hiring process. These assessments evaluate competencies relevant to the role and are applied consistently across candidates for similar positions. Results are considered alongside experience and interviews, and are not the sole basis for any employment decision. As an equal opportunity employer, we don't tolerate discrimination or harassment of any kind, whether based on race, ethnicity, age, gender identity, citizenship, religion, sexual orientation, disability, pregnancy, veteran status, or any other protected characteristic as outlined by federal, state, or local laws. Stay connected Follow us on Twitter https://twitter.com/krakenfx Learn on the Kraken Blog https://blog.kraken.com/#:~:text=Enter%20your%20email%20address Connect on LinkedIn https://www.linkedin.com/company/kraken-exchange/ Candidate Privacy Notice https://www.kraken.com/legal/candidate-privacy-notice

Что нужно делать? • Разрабатывать новые и поддерживать/улучшать существующие проекты (backend+ML+участие в деплое), а также улучшать мониторинг и аналитику запущенных проектов.

- Разработка backend-сервисов на Python и Java. - Интеграция LLM, внешних API и MCP-инструментов.

Адаптировать релизы платформы под компоненты инфраструктуры. Разрабатывать и развивать адаптеры для сервисов хранения и процессинга данных.

Location: India Workplace: remote Overview   We are looking for a Senior SDET to test the resilience and correctness of distributed backend systems supporting a high-stakes account provisioning and onboarding workflow. This role is focused on the execution of pre-approved, benign tracer/replay scenarios against staging endpoints, analysis of request/response behavior, and documentation of observable account/CID lifecycle and downstream state behavior. The ideal candidate has strong distributed-systems and API-testing experience and maintains disciplined technical evidence capture and traceability. This role is not intended to perform unrestricted adversarial testing. Testing activities will be limited to approved staging environments and pre-approved benign scenarios.   Project Details   • Title: Senior SDET • Rate: $13.5/hr • Start Date: 26 October • Duration: 5 Weeks • Commitment: 33 Hours per Week • Location: India (Remote) • Job Type: Freelance (with the possibility of full-time employment based on performance and project needs) Responsibilities • Analyze distributed system APIs to validate correctness, consistency, and failure handling across services involved in account creation, data persistence, and related record-linking • Execute pre-approved request variations and boundary-validation scenarios using sanitized tracer payloads against designated staging endpoints • Investigate system behavior under malformed, malicious, or unexpected inputs and document findings clearly • Capture complete request/response evidence, including HTTP status codes, latency, headers, and payload bodies, subject to approved data-handling requirements • Validate behavior of near-real-time inline checks (evaluated within milliseconds at the gateway) as distinct from longer-running background verification/risk pipelines (evaluated over minutes to hours), confirming each layer of defense behaves as expected • Verify data persistence, referential integrity, and correct linkage of related records/relationships written by backend services during processing • Execute controlled replay suites and compare expected versus observed API behavior • Correlate replay results with the API schemas and network evidence produced by the Middleware SDET • Document observable account/CID lifecycle behavior and downstream state changes for handoff • Capture and archive test logs and evidence in a structured, retrievable format to support audits and post-incident reviews • Collaborate with backend engineering teams to reproduce, isolate, and validate fixes for distributed-system defects • Contribute to test strategy for backend/middleware reliability, including failure-mode and chaos-style testing • Maintain traceability between test evidence, defects, and system requirements • Reconcile backend observations with the frontend FSM and middleware/API evidence produced by earlier workstreams Required Qualifications • Strong experience of 5-8+ years in testing distributed systems and analyzing inter-service API behavior • Hands-on experience with request payload tampering, fuzzing, or adversarial API testing techniques • Understanding of layered defense architectures, including the distinction between synchronous/inline validation and asynchronous/background verification processes • Familiarity with testing data persistence and relational/hierarchical integrity in backend data stores • Demonstrated discipline in test log archival, evidence capture, and structured documentation practices • Solid understanding of backend/middleware architecture, failure modes, and system boundaries • Familiarity with API testing tools and scripting for building custom fuzzing/tampering test cases • Strong analytical and investigative skills for root-causing complex, systemic defects • Experience executing controlled API replay or staging validation is strongly preferred • Experience correlating API responses with observable application/account lifecycle states is preferred • Experience supporting audit, compliance, or evidence-based reporting requirements is a plus #L1-CC1 Why join Welo Data?   ✨ Limitless Flexibility: Work on projects that fit your schedule while collaborating with a global leader in AI data services and localization.   🌱 Limitless Growth: Apply your skills, access diverse content types, develop through structured learning, and explore career paths that can lead to permanent roles.   🌍 Limitless Support: Be part of a global community with real-time assistance from our Community Experience team.     How to Apply?  Apply now by answering a few quick questions to join our database and become part of our growing community.     We can’t wait to meet you!     About Welo Data   Welo Data, part of Welocalize, is a global AI data company with 500,000+ contributors delivering high-quality, ethical data to train the world’s most advanced AI systems. We’re building smarter, more human AI with a diverse community in 100+ countries.    At Welo Data, Limitless AI. Limitless You. isn’t just a slogan—it’s our promise. We build smarter AI through the power of human contribution, offering limitless opportunities for our global community to grow, contribute, and work on their terms.

-Разрабатывать и развивать backend-сервисы на Go в микросервисной архитектуре. -Проектировать REST и gRPC API, интеграции с внешними системами и брокерами сообщений.

✅ Experience building scalable services and APIs. ✅ Knowledge of algorithms, data structures, and computer science fundamentals.