Вакансии

Задачи: — Взять на себя ключевую часть сетевой и VPN-инфраструктуры проекта — Следить за изменениями в блокировках и сетевых ограничениях — Понимать современные методы фильтрации трафика — Знать актуальные VPN-технологии и постоянно тестировать новые инфраструктурные решения — Строить масштабируемую и отказоустойчивую инфраструктуру — Проектировать отказоустойчивую инфраструктуру, способную переживать сбои и изменения сетевых ограничений без постоянного ручного вмешательства — Быстро исследовать изменения в сетях, ставить эксперименты, находить причины проблем и внедрять решения Требования: — Senior-уровень в сетях: TCP/IP, UDP, DNS, TLS/HTTPS, маршрутизация, NAT — Серьёзный практический опыт с VPN, туннелированием и Xray — Опыт работы именно с крупными VPN-проектами — Глубокое понимание DPI, фильтрации трафика, блокировок и причин деградации соединений — Сильный Linux и сетевая диагностика — Опыт с dedicated-серверами, VPS/VDS, CDN, дата-центрами и хостинг-провайдерами — Практический опыт колокации собственного оборудования (плюсом) — Постоянная погружённость в VPN-индустрию и понимание того, что в ней происходит прямо сейчас — Хорошо ориентироваться в рынке хостингов и дата-центров — Понимать особенности разных провайдеров Условия: — Full-time — Только основная работа — без параллельной работы и учёбы

🕹 Список обязанностей: поддерживать и развивать инфраструктуру продукта на Linux; обеспечивать стабильную работу серверов, прокси и CDN;

Функциональное, интеграционное и API-тестирование микросервисов транспортных компаний, работа с курьерской доставкой и выдачей на ПВЗ, подготовка тестовой модели и тест-кейсов, автоматизация регрессионных проверок API на Python. Тестирование процесса декомпозиции монолитного PHP-приложения и переноса бизнес-функциональности в микросервисы на Go.

- Тестирование хранилища данных. - Проверка полноты, согласованности и точности данных.

Задачи: — Прямая работа с CTO: архитектурные и операционные задачи инфраструктуры — Поддержка и развитие кластеров Kubernetes: ArgoCD, Helm, GitLab CI/CD — Код на Go: внутренние утилиты и CLI, экспортеры метрик, операторы и хелперы для платформы, правки в сервисах монорепозитория — Инфраструктура как код — OpenTofu, Ansible — Сетевой контур: маршрутизация, VPN, DNS, TLS, ingress, firewall, сегментация — Docker / docker compose — локальные и staging-окружения разработчиков — Первая линия реакции на инциденты: разбор алертов, эскалация, постмортемы — Базовое администрирование сервисов — доступы, почта, админки Требования: — Kubernetes в проде — не «поднял minikube», а дежурил и чинил — GitLab CI/CD, ArgoCD, понимание GitOps-подхода — Сети — TCP/IP, DNS, NAT, VPN, TLS; умение читать tcpdump и не паниковать — Docker, docker compose — Ansible, OpenTofu (или Terraform) — Linux на уровне уверенного администрирования — Grafana и алертинг — дашборды, метрики и логи, настройка правил алертов, работа с Prometheus / Loki / Alloy — Сбор метрик с сервисов в Kubernetes — экспортеры и sidecar'ы, ServiceMonitor / scrape-конфиги, обвязка приложений метриками, RED/USE-подход к дашбордам — Kafka и NATS — не только «настроить», но и понимать семантику доставки, консьюмер-группы, отставание — Опыт highload и финтеха — платёжные интеграции, деньги, требования к надёжности — Готовность подключаться к инцидентам вне стандартных часов — Английский — документация и переписка Будет плюсом: — Go — умение писать и поддерживать код, а не только читать: утилиты, экспортеры, правки в сервисах — Опыт в iGaming

Location: Valencia Workplace: OnSite ROLE HIGHLIGHTS - Title: Engineering Satellite Build Lead - Location: Valencia, Spain - Department: Space Systems Testing Team, Engineering - Reports to: Testing Team Lead - Employment type: Permanent - Workplace model: Hybrid per company policy (up to 2 days/week remote); in practice, this hands-on, technical-managerial role requires being onsite at our Valencia office most of the time - Employment is subject to applicable security screening WHY THIS ROLE MATTERS You own the end-to-end build, integration, testing and delivery of the developmental satellites, starting with early preparation and alignment with designers, procurement and operations teams, through the Qualification Model (QM) and Flight Model (FM). You plan the AIT timeline, lead the build team, and keep build documentation, configuration tracking and lessons learned flowing back to designers, so every future unit is faster and easier to build. This position sits within the Testing Team. It is important to note that this is developmental, prototype satellite work rather than repeat-production integration: requirements are not yet frozen, designs evolve frequently, and the Lead is expected to resolve novel problems rather than execute a fixed procedure. WHO WE ARE ICEYE delivers space-based intelligence, surveillance and reconnaissance (ISR) capabilities to governments and allied nations, including sovereign and turnkey ISR missions built on ICEYE's world-leading synthetic aperture radar (SAR) satellite technology, alongside access to data from the world's largest SAR satellite constellation. These capabilities let partners detect and respond to critical changes anywhere on Earth, day or night and in any weather, with ultra high-resolution imagery and high-frequency revisits. As a trusted partner for defence, intelligence, security and maritime domain awareness, ICEYE's near real-time data creates a tactical advantage for mission-critical operations. Founded and headquartered in Finland, ICEYE operates globally with over 1000 employees across Europe, North America, the Middle East and Asia-Pacific. YOUR DAY-TO-DAY RESPONSIBILITIES Build, integration and delivery ownership (EC, Engineering Configuration) - Own end-to-end build, integration, testing and delivery of the R&D satellite system, across QM and FM units - Plan all AIT activities and the AIT timeline for R&D build - Manage the build team and actively participate in build execution - Own build documentation, including build records, configuration tracking (parts traceability) and high-level build procedures - Document lessons learned and give structured feedback to designers to improve build efficiency and testability QM and FM build and system-level testing - Plan and own the QM system build and its system qualification activities - Own system-level integration and testing of FM satellites, verifying functional performance, capturing any required modifications, and maintaining close traceability to support knowledge transfer to the production line - Define system-level test blocks and flows with technical owners, and plan, schedule and coordinate execution of functional tests, SLC, Mock Ops and other required system-level test activities (FM) - Across both QM and FM: accountable for test execution readiness and progress, but do not define test cases, test scenarios or test acceptance criteria (owned by Test Engineering / relevant technical owners) Scope boundaries - Does not own unit-level testing or qualification (owned by project leads / technical owners) - Does not own documentation updates resulting from future design changes (owned by designers); this role's build documentation, including Production documentation, reflects as-built execution only - Does not define system functional requirements or system test definitions, including test cases, scenarios or acceptance criteria (owned by systems engineers / test engineers) WHAT WE'RE LOOKING FOR Must haves: - Broad, hands-on technical depth across mechanical, electronics, RF and software domains, with deep expertise in at least one area and the ability to engage effectively and make sound decisions in the others - Proven track record planning and executing hardware build, integration and test (AIT) campaigns for complex electromechanical or electronic systems, ideally satellites or other high-reliability aerospace/defence hardware - Strong understanding of configuration management and parts traceability, and comfort owning build documentation and build records end to end - Experience managing a build or AIT team, including day-to-day task planning and hands-on participation in build execution - Ability to plan and hold a realistic AIT schedule across build, qualification (QM) and flight (FM) units, coordinating with test engineering, and systems engineering - Systematic, first-principles approach to build and integration problems, comfortable working across mechanical, electrical and software interfaces - Clear written and verbal communication, able to turn build lessons learned into structured, actionable feedback for designers - Maintain strong interpersonal connections and a collaborative spirit, bringing a steady presence to fast-paced or high-pressure environments. - Excel at building positive workplace relationships and navigating high-stress situations with composure and a collaborative mindset. Nice to haves: - Experience with SIGINT, SAR or other RF/payload satellite systems - Prior people management experience, or clear readiness to grow into a team lead role - Familiarity with system-level test activities such as functional tests, SLC (System Level Checks) or Mock Ops GROWTH PATH This role starts hands-on. In the first phase, you'll share the responsibilities described above with the Testing Team Lead while you build context on our systems, processes and team. As you grow into the role, you'll take it on more independently, owning AIT planning, build execution and team management end to end. Over time, the role is expected to evolve toward team leadership, potentially leading the build team directly. Even so, you'll stay hands-on with build execution and technical problem-solving rather than moving fully into management. APPLICATION PROCESS 1. Talent Acquisition screening 2. Hiring Manager interview 3. Take-home task and panel interview 4. (on-site) Technical / systems discussion with the SIGINT Testing Team 5. (on-site) Behavioural interview to assess cultural fit WORKING AT ICEYE At ICEYE, you'll join a diverse and highly engaged team united by the ambition to make the impossible possible. As a global scale-up, we combine speed and ambition with the opportunity to take real ownership from day one. Your growth, wellbeing and success are a priority, with continuous professional development, training opportunities and a culture where collaboration is how we win. How We Work (Our Values) - Make the impossible possible: We set ambitious goals and stay calm under pressure. We bring grit, optimism and ownership when things get hard, and we keep moving until we find a way. - Be curious: Go deep, ask questions, listen carefully and think critically. Understand the "why" behind decisions. - See the big picture: Stay close to what's happening across the company so you can make better decisions. Consider how your work affects others. - Drive effective teamwork: Create psychological safety, invite different perspectives and build inclusive teams. There are no bad questions. - Act as one team: We win together. We match tasks to the right owner and stay agile as priorities shift. - Have fun: What we do matters, and it should be enjoyable. Celebrate progress, take pride in results and share the wins. Benefits Our benefits are designed to support your health and wellbeing, at work and beyond. We keep improving them based on employee feedback, and offerings vary by location. Talent Acquisition will confirm what applies for this role and location during the process. Our Commitment to Diversity, Equity, and Inclusion We want ICEYE to be a place where people can be themselves and do great work. Different backgrounds and perspectives make us stronger, which is why we work to create an environment where people feel included, respected and able to speak up. Whatever your background, we want you to bring your authentic self to the table. We're committed to fair, inclusive hiring and equal opportunity. Everyone is welcome to apply. If you need any adjustments or support during the recruitment process, tell us, we'll do our best to help. Apply now to start your ICEYE journey, and help us continue to make the impossible possible together. Read more about ICEYE and working with us at iceye.com http://iceye.com.

Key requirements: Java, Python, AWS (EC2, S3), Kubernetes. Job descriptions.

Location: United Kingdom, London Why Sony Interactive Entertainment? Sony Interactive Entertainment isn’t just the Best Place to Play — it’s also the Best Place to Work. Sony Interactive Entertainment (SIE) is the company behind the PlayStation brand. As a subsidiary of Sony Group Corporation, we’re part of a proud legacy of innovation and excellence. SIE is a dynamic technology company, delivering cutting-edge hardware and network services to more than 100 million people and an entertainment leader, home to some of the most beloved and recognizable intellectual properties (IP) in the world. Our role at SIE is to create and nurture the experiences under the PlayStation brand, a name synonymous with entertainment excellence and creativity. Network Support Engineer The SIE Developer Technology Group brings together specialists across a range of technology and platform-specific areas, including Graphics, Systems, Submission, and Network technologies. We support game developers and publishers by resolving technical challenges, improving development processes, and providing solutions that help partners successfully develop and release content on PlayStation platforms. The Network team works closely with first- and third-party developers and publishers, providing technical guidance on PlayStation network services, APIs, tools, and related technologies. Job Description As a member of the Network team, you will: Provide technical support and guidance to developers and publishers across all PlayStation platforms through our support portal, online channels, on-site visits, training sessions, and industry events. Develop and maintain a strong understanding of PlayStation network services, APIs, tools, and technologies, helping partners interpret documentation and implement solutions correctly. Investigate technical issues, identify appropriate solutions, and coordinate escalations with relevant internal teams where required. Collaborate with teams across SIE regions to resolve partner issues and develop solutions that improve the developer experience. Act as a technical liaison between developers, publishers, and internal groups including Third Party Relations, Store Operations, Consumer Services, Policy, Product, and SDK teams. Gather, document, and communicate partner feedback, recurring technical challenges, and opportunities for improvement to engineering and product teams. Contribute to the development and improvement of developer-facing tools, services, documentation, and internal processes. Participate in project and software development work, including enhancing existing tools, creating new solutions, and automating internal workflows. Deliver technical training and presentations to developers and publishers, including at partner meetings and developer events. Required Familiarity with programming and scripting languages such as JavaScript, Python, C/C++, XML, or HTML. Familiarity with APIs, web services, networking concepts, or online service technologies. Experience in digital technologies, software development, technical support, or the gaming industry. Strong technical problem-solving and analytical skills, with the ability to investigate complex issues methodically. Excellent verbal and written communication skills, with the ability to explain technical concepts clearly to a range of audiences. Strong organizational and time-management skills, with the ability to manage multiple priorities and collaborate across teams and time zones. Ability to work effectively in an international and multicultural environment. Proactive, collaborative, and approachable, with strong relationship-building skills. Flexible and adaptable, with the ability to respond effectively to changing priorities and requirements. Strong attention to detail. Bachelor’s degree or equivalent practical experience. Nice to Have Experience in developer relations, developer support, technical support, or another partner-facing technical role. Experience developing internal tools, utilities, or automation. Experience with game development, production, or release management. Experience delivering technical training, presentations, or developer-facing documentation. An interest in emerging technologies, online gaming, network services, and broader industry trends. Please note, Sony Interactive Entertainment conducts background checks at the offer stage for all new employees (which may include criminal background checks for some roles) and will need to process personal information to support these checks. Please refer to our Candidate Privacy Notice for more information about what personal information we collect, how we use it, who we share it with, and your data protection rights. Equal Opportunity Statement: Sony is an Equal Opportunity Employer. All persons will receive consideration for employment without regard to gender (including gender identity, gender expression and gender reassignment), race (including colour, nationality, ethnic or national origin), religion or belief, marital or civil partnership status, disability, age, sexual orientation, pregnancy, maternity or parental status, trade union membership or membership in any other legally protected category. We strive to create an inclusive environment, empower employees and embrace diversity. We encourage everyone to respond. Sony Interactive Entertainment is a Fair Chance employer and qualified applicants with arrest and conviction records will be considered for employment.

Location: Poland; Uruguay; Argentina; Armenia; Romania Workplace: Remote Solvd Inc. is a rapidly growing AI-native consulting and technology services firm delivering enterprise transformation across cloud, data, software engineering, and artificial intelligence. We work with industry-leading organizations to design, build, and operationalize technology solutions that drive measurable business outcomes. Following the acquisition of Tooploox, a premier AI and product development company, Solvd now offers true end-to-end delivery—from strategic advisory and solution design to custom AI development and enterprise-scale implementation. Our capability centers combine deep technical expertise, proven delivery methodologies, and sector-specific knowledge to address complex business challenges quickly and effectively. We're on the lookout for a Mobile Test Automation Engineer to join our team working on a social news aggregation platform. WHAT YOU’LL DO - Design, maintain, and execute automated and manual tests for iOS and Android mobile applications. - Build and maintain mobile automation suites using XCUITest and Espresso. - Perform hands-on functional, regression, integration, exploratory, usability, and end-to-end testing on real devices and emulators. - Diagnose failures, investigate defects, and partner with engineering teams to identify root causes. - Develop test plans, test cases, test procedures, and release-quality reports. - Integrate automated tests into CI/CD pipelines and monitor test and infrastructure stability. - Collaborate with developers, product managers, and partner engineering teams throughout the Agile development lifecycle. - Identify cross-platform impact areas and provide risk-based test coverage for new features and experiments. - Help drive quality practices across unit, integration, and end-to-end testing. - Estimate testing effort and work independently in a fast-paced environment. REQUIRED SKILLS & EXPERIENCE - 4+ years of experience building or maintaining automation frameworks for mobile applications. - Advanced hands-on experience with XCUITest and Espresso — framework development, maintenance, debugging, and CI execution. - Strong experience testing iOS and Android mobile applications, preferably social media or high-scale consumer apps. - Experience building scalable mobile automation frameworks and integrating them into CI/CD pipelines. - Strong knowledge of mobile QA methodologies, SDLC, test strategy, and test documentation. - Strong understanding of mobile platforms, device fragmentation, networking, permissions, notifications, deep links, and app lifecycle behavior. - Ability to independently create test plans and coverage strategies from product requirements. - Strong exploratory testing and risk-assessment skills. - Experience working in Agile/Scrum environments with frequent or weekly production releases. - Experience using tools such as Jira, Confluence, and common test-management systems. - Strong written and verbal communication skills. PREFERRED QUALIFICATIONS - Experience testing social, community, messaging, or user-generated content platforms at scale. - Experience testing across iOS, Android, web, and mobile web. - Experience with API testing and backend validation. - Experience testing experiments, feature flags, personalisation, feeds, notifications, and user-generated content. - Experience supporting frequent or weekly production release cycles. When you join Solvd, you'll… - Shape real-world AI-driven projects across key industries, working with clients from startup innovation to enterprise transformation. - Be part of a global team with equal opportunities for collaboration across continents and cultures. - Thrive in an inclusive environment that prioritizes continuous learning, innovation, and ethical AI standards. Ready to make an impact? If you're excited to build things that matter, champion responsible AI, and grow with some of the industry’s sharpest minds. Apply today and let’s innovate together. Solvd is an equal opportunity employer.

Описание вакансии Стажер iOS QA Engineer - Тестирование приложения Тренировки на платформе Apple Мы развиваем цифровые продукты, которые помогают людям заботиться о своем физическом и эмоциональном благополучии. Сейчас мы ищем увлеченного стажера или начинающего QA Engineer (тестировщика) для нашего iOS-приложения «Тренировки» (Body Workout) .

Location: Chisinau, Moldova, Republic of Workplace: remote Yopeso has been developing a diverse range of software products, from large-scale applications to smaller solutions, for 20 years. With a growing team of over 300 employees across five locations, we are dedicated to fostering a culture of growth, transparency, and professionalism. At Yopeso, we value authenticity, curiosity, and ambition. These values drive us to build strong connections within our community and with our partners, ensuring trust, integrity, and transparency in all our business practices. We strive to maintain the highest professional standards and continuously challenge ourselves to develop high-quality, high-performance, and secure software solutions. Our approach is rooted in efficient collaboration among passionate professionals working in agile teams. Guided by curiosity and ambition, we strive to create products that are meaningful and impactful, while remaining true to our authentic selves. What we offer: Competitive remuneration Remote work Sports/leisure benefit 20 sick leave days paid at 100% 32 calendar days of vacation Team events, online, at the office, or outside Professional development plan with guidance and mentorship Training and development opportunities with an allocated budget Professional Certifications Optional medical insurance About the Project We are looking for a Reliability / DevOps Engineer to join the team, supporting a financial database platform built around business-critical database systems and related operational processes. The role focuses on maintaining the stability, availability, performance, and reliability of large-scale databases , including environments containing terabytes of data . You will work with database infrastructure, monitoring, upgrades, migrations, automation, and incident prevention in a highly reliability-focused environment. Key Responsibilities Monitor and maintain the reliability and availability of business-critical database systems. Support databases containing terabytes of data and ensure stable operation in production environments. Perform and support database version upgrades, patching, and maintenance activities . Plan and execute data migrations with a strong focus on availability, integrity, and risk mitigation. Investigate production issues, performance degradation, and reliability incidents. Implement and improve monitoring, alerting, and observability for databases and supporting infrastructure. Automate operational and infrastructure processes where appropriate. Work with infrastructure and database teams to improve resilience, scalability, and operational efficiency. Participate in root cause analysis and contribute to preventive measures following incidents. Maintain and improve operational procedures, runbooks, and reliability practices. Required Skills Hands-on experience in DevOps, Site Reliability Engineering, Infrastructure Engineering, or Database Operations . Good understanding of database management and database reliability concepts . Experience supporting large or business-critical production systems. Practical experience with monitoring and observability tools . Understanding of performance monitoring, alerting, troubleshooting, and incident management. Experience working with data migrations and/or database upgrades . Good knowledge of Linux and infrastructure troubleshooting. Ability to work independently and take ownership of production reliability topics. Nice to Have Experience with AWS . Experience with Terraform or other Infrastructure-as-Code tools. Experience with enterprise monitoring and observability platforms. Previous experience working with Oracle Databases . Experience managing databases at terabyte scale . Background in Database Reliability Engineering (DBRE) or SRE environments. Experience supporting systems in the financial services or other highly regulated industries .

Location: Bucuresti, Romania; Cluj-Napoca, Romania; Iasi, Romania Workplace: remote Yopeso has been developing a diverse range of software products, from large-scale applications to smaller solutions, for 19 years. With a growing team of over 250 employees across five locations, we are dedicated to fostering a culture of growth, transparency, and professionalism. At Yopeso, we value authenticity, curiosity, and ambition. These values drive us to build strong connections within our community and with our partners, ensuring trust, integrity, and transparency in all our business practices. We strive to maintain the highest professional standards and continuously challenge ourselves to develop high-quality, high-performance, and secure software solutions. Our approach is rooted in efficient collaboration among passionate professionals working in agile teams. Guided by curiosity and ambition, we strive to create meaningful, impactful products while staying true to our authentic selves. What we offer: Competitive remuneration Remote work 24 days off per year and floating days Private clinic health services, Regina Maria Medical Insurance Flexible benefits through Up multi-benefits platform Referral bonus scheme Team events, online or at the office Training and development opportunities with allocated budget Professional Certifications Knowledge-sharing context About the Project We are looking for a Reliability / DevOps Engineer to join the team, supporting a financial database platform built around business-critical database systems and related operational processes. The role focuses on maintaining the stability, availability, performance, and reliability of large-scale databases , including environments containing terabytes of data . You will work with database infrastructure, monitoring, upgrades, migrations, automation, and incident prevention in a highly reliability-focused environment. Key Responsibilities Monitor and maintain the reliability and availability of business-critical database systems. Support databases containing terabytes of data and ensure stable operation in production environments. Perform and support database version upgrades, patching, and maintenance activities . Plan and execute data migrations with a strong focus on availability, integrity, and risk mitigation. Investigate production issues, performance degradation, and reliability incidents. Implement and improve monitoring, alerting, and observability for databases and supporting infrastructure. Automate operational and infrastructure processes where appropriate. Work with infrastructure and database teams to improve resilience, scalability, and operational efficiency. Participate in root cause analysis and contribute to preventive measures following incidents. Maintain and improve operational procedures, runbooks, and reliability practices. Required Skills Hands-on experience in DevOps, Site Reliability Engineering, Infrastructure Engineering, or Database Operations . Good understanding of database management and database reliability concepts . Experience supporting large or business-critical production systems. Practical experience with monitoring and observability tools . Understanding of performance monitoring, alerting, troubleshooting, and incident management. Experience working with data migrations and/or database upgrades . Good knowledge of Linux and infrastructure troubleshooting. Ability to work independently and take ownership of production reliability topics. Nice to Have Experience with AWS . Experience with Terraform or other Infrastructure-as-Code tools. Experience with enterprise monitoring and observability platforms. Previous experience working with Oracle Databases . Experience managing databases at terabyte scale . Background in Database Reliability Engineering (DBRE) or SRE environments. Experience supporting systems in the financial services or other highly regulated industries .

Задачи: — Автоматизация финансовых расчетов и онлайн балансов — Автоматизация финансовых и операционных процессов, сверок и отчетности — Работа с базами данных PostgreSQL, структурами данных, запросами и финансовыми дата-мартами — Разработка скриптов, сервисов, ботов и внутренних инструментов автоматизации — Работа с ценообразованием, спредами, комиссиями, маржами и юнит-экономикой — Мониторинг в реальном времени и оповещения о отклонениях маржи — Использование ChatGPT / LLM инструментов и API для кодирования, анализа, автоматизации и документации — Взаимодействие с финансовым отделом для преобразования бизнес-требований в надежные технические решения Требования: — Сильные навыки SQL и профессиональные навыки Python — Хорошие знания PostgreSQL / баз данных — Практический опыт работы с автоматизацией, скриптами, пайплайнами или сервисами — Понимание архитектуры данных и логики расчетов — Опыт использования ChatGPT / LLM как рабочего инструмента — Способность работать самостоятельно с комплексными или неоднозначными требованиями — Системное мышление и ответственность за результат, а не только за код — Свободное владение русским и английским языками Условия: — Работа в быстрорастущей финтех-среде — Высокая степень ответственности и реальное влияние — Работа на стыке финансов, технологий и искусственного интеллекта — Возможность создавать и улучшать системы с нуля — Международная команда и современный офис

We’re looking for a Junior QA Engineer who is eager to grow, learn, and gain hands-on experience in real projects.

— обработка Excel, PDF и сканов; — извлечение и нормализация данных;

Location: Russia; Moscow; Perm Workplace: remote About Xsolla 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. About the Role We are hiring a Staff Software Engineer to own the smart wallet and account abstraction layer of XsollaZK, Xsolla's Web3 platform on a zkSync-based L2. This is an individual contributor role with a large technical scope. You are the technical anchor for how millions of players get an on-chain account they never have to think about. The product. Every player who signs in with Xsolla ID receives a deterministic, non-custodial smart account. The account is derived from their identity claim, is identical on every device, and its private keys never leave the client. It is not a separate wallet screen: it is the player's inventory. It backs: minting and gifting; trading on our Bazaar marketplace; Merkle-based reward airdrops; gas sponsorship; an in-app dApp browser that exposes the same signer to third-party applications through an EIP-1193 provider. Responsibilities The technical strategy and architecture of the smart wallet platform: account model, signing, session management and gas abstraction at scale The smart account and permissioning model, evolved to meet both product and compliance needs The security model where our signer meets third-party applications: what a player is actually approving, and proof that the UI shows it The custody and recovery roadmap, from today's interim mechanisms (including raw key export) to MPC -based custody Cross-team technical decisions on account architecture, SDK contracts, data modeling and platform reliability, with buy-in from the wallet, marketplace, SDK, mobile and security teams Engineering standards in the Web3 domain Production escalations in the wallet and account abstraction domain WHAT YOU WILL DO Design and evolve the ERC -4337 user operation lifecycle (prepare → sign → submit → confirm), EIP -7702 delegation, deterministic address derivation from identity, and the session-key and permission primitives (including origin-bound Smart Sessions) that let players act without a prompt on every transaction Set the paymaster and gas-sponsorship strategy: what we sponsor, how we meter and cap it, how we defend it from abuse, and how it degrades when sponsorship is unavailable Define EIP -1193 / EIP -6963 provider behavior, origin-bound and policy-versioned sessions, trust tiers, and the transaction and signature confirmation flow Design recovery paths (passkeys, guardians, social recovery) that a non-crypto-native player can complete without losing assets Identify systemic risks (key management, signature phishing, reorgs and indexer staleness, bundler and RPC dependencies, contract upgrade paths) and lead initiatives that resolve them before they become incidents Write RFCs and design docs; review critical code, contracts and designs Work with product, security, legal and infra teams to align on the roadmap and turn business and regulatory needs into well-scoped technical plans Create leverage for the engineering org through documentation, tooling and mentorship Serve as the escalation point for complex production issues: a stuck user operation, a drained paymaster, a signing prompt a player didn't understand Set up and maintain AI tooling in the repositories (Claude Code, Codex, Cursor: rules, context, harness) so the team uses it effectively REQUIRED Experience 8+ years of engineering in the Ethereum ecosystem working with crypto wallets and smart wallets Designing or operating a production smart wallet or account abstraction system serving real users and real value Shipping and operating systems where a bug meant lost funds. You can talk concretely about the guardrails, reviews and rollback paths you put in place Account abstraction and smart wallets ERC -4337 in depth: EntryPoint (v0.6 through v0.8), the UserOperation lifecycle, bundler and paymaster roles, validation rules ( ERC -7562), gas estimation and its failure modes, counterfactual deployment, signature validation for undeployed accounts ( ERC -6492) EIP -7702 and the post-Pectra landscape: EOA delegation, its interaction with EntryPoint v0.8, and the risks it introduces (residual key authority, delegation phishing, storage collisions) Building on or extending production smart account implementations; modular account standards ( ERC -7579 / ERC -6900) Session keys and delegated permissions: scoped, time-limited, policy-bound authority; TTLs and contract allowlists, origin binding, permission revocation; ERC -7710 / ERC -7715 Signature schemes and wallet interfaces: EIP -712 typed data, ERC -1271 contract signatures, WebAuthn / passkey (P-256) signers; EIP -1193, EIP -6963, EIP -5792 batched calls, ERC -7677 paymaster interfaces Smart contracts and EVM Solidity and the EVM : reading, reviewing and writing account, paymaster and module contracts; gas-aware design; upgradeability and migration patterns; working effectively with external auditors L2 specifics and their effect on wallet design: native account abstraction on zkSync-family chains, transaction and fee models, finality and reorg behavior, RPC and indexer semantics Backend Go: idiomatic code, concurrency patterns, performance profiling TypeScript and SDK design: client-side SDK surfaces that internal and external teams build on Distributed systems and their trade-offs (consistency, availability, failure modes); reconciling off-chain state against an authoritative on-chain result Data and infrastructure PostgreSQL: schema design, query optimization, migrations at scale Kubernetes: deploying, operating and debugging services Asynchronous messaging and event-driven design (Kafka or NATS ): consumer groups, at-least-once delivery Git, CI/CD Security Key management in production: platform secure storage (Keychain / Keystore), HSMs, MPC or threshold signing, and the operational discipline around each Wallet threat modeling: signature and delegation phishing, malicious dApp origins, replay and cross-chain replay, token approval abuse, paymaster griefing and DoS Leadership Leading multi-quarter technical initiatives across teams Influencing architecture and standards beyond your immediate team RFCs and design docs that stand on their own and are actionable without you in the room AI-assisted engineering Daily hands-on use of AI coding tools (Claude Code, Codex, Cursor) for development and review, including configuring them for a repository English English at C1 level Nice to Have Hands-on experience with ZK Stack and zk -rollups Hands-on experience with embedded and ecosystem wallet and AA infrastructure technologies (thirdweb, Privy, Dynamic, Turnkey, Pimlico, Alchemy, Biconomy, ZeroDev, Safe{Core}), with clear views on build versus buy MPC / threshold custody, social recovery or guardian-based recovery in a consumer product NFT and token infrastructure at scale: ERC -721 / ERC -1155 / ERC -20 mechanics, marketplace contracts, Merkle-based airdrop and claim distribution, chain indexing services Contributions to open-source wallet, security or identity projects, including authoring or reviewing ERC / EIP standards Compliance requirements for crypto consumer products: KYC / AML , geofencing, MiCA , SOC 2, ISO 27001, GDPR data minimization, audit logging Identity and auth integration for wallet derivation: OAuth 2.0 / OIDC , JWT verification, token scoping Platform or infrastructure engineering: building systems other engineers build on Owning a mobile wallet surface: React Native / Expo, WebView provider injection, native signing UI Gaming industry experience: platforms for game developers, publishers or players How We Work Decisions in writing. Significant technical decisions are written up as an RFC or ADR that lays out the options and trade-offs. We work across time zones, so a design has to stand on its own. AI is part of everyday engineering. We use AI coding tools for development and review, and we treat configuring them for a codebase as real engineering work. HOW WE HIRE Intro call. Your background, your motivation and the role. Technical interview. Built directly on the What you will own and Required sections above. We won't ask about anything this posting doesn't promise. System design. You design part of a wallet or account abstraction platform end to end and walk us through the trade-offs. Bar raiser. An engineer from outside the hiring team checks that you raise the overall engineering bar. 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. EMPLOYMENT DETAILS Location: Remote  Employment Type: Full-time Schedule: 10:00–19:00 (flexible)

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