Разработка вакансии

🚀 Timspark is looking for a Senior Optimizely Developer to join a live retail e-commerce project. * 4+ years of commercial experience with Optimizely CMS 11 + Commerce 13.

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.

🌸Управление операционной деятельностью и руководителями функциональных направлений. 🌸Выстраивание взаимодействия между Payments, Finance, Support, Tech, Project Management и Commercial.

Location: Russia; Perm; Moscow Workplace: remote 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. THE ROLE We are hiring a Team Lead, Web3 to lead a cross-functional team of frontend, backend, smart contract and QA engineers in XsollaZK, Xsolla's Web3 ecosystem on a zkSync-based L2. Your team builds: smart wallets built on account abstraction; SDKs that game studios and partners use to bring players on-chain; infrastructure backend services for tokenizing in-game items and currencies; ecosystem dApps: a DEX, an NFT marketplace and an auction. This is a management role. Most of your time goes to people and delivery: building the team, growing engineers, and making delivery predictable. The rest goes to technical leadership: architecture, reviews and hands-on code where it matters. Responsibilities WHAT YOU WILL OWN The team: hiring, onboarding, growth and performance of frontend, backend, smart contract and QA engineers Delivery: predictable commitments, a sustainable pace and the quality of what the team ships How the team works: processes, engineering standards and an AI-assisted workflow Relationships with Product, DevOps and other Xsolla product teams: priorities, dependencies and expectations The technical direction of the team's product area: on-chain / off-chain architecture and key technical decisions, justified in writing Security and reliability of what the team ships: signing flows, contracts that hold user assets, production operation and the team's on-call rotation WHAT YOU WILL DO People Set clear goals and expectations for each engineer Run regular 1:1s, performance reviews and career development conversations; give direct feedback and address underperformance Hire engineers across disciplines: define roles, run interviews and onboard new people Grow engineers through mentoring and build the team's next leaders Build a culture of technical excellence, collaboration and continuous learning Delivery Work with Product to shape requirements, estimate and plan work Manage scope, workload, risks and dependencies so the team delivers on its commitments Report progress, risks and blockers to stakeholders Lead the team through production incidents and post-mortems Continuously improve development processes and team efficiency Technical leadership Review architecture and critical code across backend, frontend and smart contracts, with a focus on edge cases specific to Xsolla products: smart wallets, tokenization of in-game items and currencies, marketplace and auction flows Lead key decisions on smart wallet integration (UserOperations, paymaster and gas sponsorship), session keys and the signing flow Identify systemic risks (key management, signature phishing, bundler and RPC dependencies) and make sure they are addressed before they become incidents Contribute hands-on to critical features when needed Set up AI tooling in the repositories (Claude Code, Codex, Cursor: rules, context, harness) and drive its adoption across the team REQUIRED Management experience 5+ years of engineering management experience Managing cross-functional teams that combine several disciplines (for example frontend, backend, smart contracts and QA) Teams you led shipped dApps to production and maintained them People leadership Hiring and building teams: defining roles, running interviews, onboarding Performance management: setting goals, giving feedback, running performance reviews, handling underperformance Growing engineers: career plans, mentoring Delivery and stakeholders Delivery planning: estimation, sprint planning, managing scope, risks and dependencies Working with Product and other teams on priorities and trade-offs; explaining technical trade-offs to non-technical stakeholders Leading a team through production incidents and post-mortems Balancing management with hands-on technical work Technical depth A strong technical background: hands-on engineering experience across the Web3 stack, deep enough to lead technical decisions and review work on each layer: Web3 libraries and wallets: viem and wagmi in production; how wallet signers work (EOAs, browser and embedded wallets, smart accounts, EIP-191, EIP-712, EIP-1193); smart wallets (UserOperations, paymasters, ERC-1271) Backend: Go and TypeScript (Node.js); processing on-chain events (idempotency, reorgs, retries); asynchronous messaging (Kafka, RabbitMQ or NATS ); PostgreSQL and Redis; REST and gRPC API design Frontend: React and TypeScript; web security fundamentals ( XSS , CSRF , CSP , safe handling of signatures and keys in the browser) Smart contracts: reading Solidity and the EVM (storage, gas, proxy upgrade patterns, access control); common vulnerability classes (reentrancy, front-running / MEV , oracle manipulation, signature replay) Operations: Docker, Kubernetes, CI/CD; observability (we use Datadog; experience with Prometheus, Grafana, ELK / Graylog or OpenTelemetry also counts) 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 Spoken English at B2 level or higher Nice to Have ZK Stack and zk -rollups: EraVM vs EVM , system contracts (ContractDeployer, NonceHolder), L1↔L2 messaging, bridging and finality Smart contract development in Solidity with Foundry Deeper account abstraction: ERC-4337 EntryPoint versions and validation rules (ERC-7562, ERC-6492), modular accounts (ERC-7579 / ERC-6900), session keys and delegated permissions (ERC-7710 / ERC-7715), EIP-7702 Hands-on experience with wallet and AA infrastructure technologies (Sequence, thirdweb, Privy, Dynamic, Turnkey, Pimlico, Alchemy, ZeroDev, Safe{Core}), with clear views on build versus buy Key management: HSM , MPC / threshold signing, social or guardian-based recovery DeFi ( DEX , AMM ) and NFT marketplaces (ERC-721, ERC-1155, auctions) go-ethereum and abigen Managing distributed or remote teams Gaming or fintech experience with high-load systems 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 discuss the document, not a blank whiteboard. 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 on the Technical depth part of the Required section and the technical items in What you will own . People and delivery. Built on the Management experience , People leadership and Delivery and stakeholders parts of Required : real situations from your experience with hiring, performance, delivery and incidents. 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) Contract: Employment agreement (entity or EOR arranged per candidate location) EQUAL EMPLOYMENT STATEMENT Xsolla is dedicated to creating a diverse environment and is proud to be an equal-opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, language, sexual orientation, national origin, genetics, political beliefs, disability, age, marital status, social background or other characteristics. We are committed to compliance with all fair employment practices regarding citizenship and immigration status. CONTACT If you have questions regarding our hiring practices, please contact careers@xsolla.com. For more vacancies, visit xsolla.com/careers.

Talablar: — Frontend dasturlash (HTML, CSS, JavaScript va zamonaviy frameworklar) bo‘yicha puxta bilim — Ravon nutqqa ega bo‘lgan — Uyatchang bo'lmagan — Boshqalarga bilimini erkin o'rgata oladigan — Bolalar bilan ishlashni yoqtiruvchi Ish turi: 9:00-18:00, offline 6/1

Задачи: — Анализ требований заказчиков — Развитие продукта Giga IDE (доработка существующих плагинов, написание новых) — Тестирование реализованной функциональности — Техническая поддержка ПО, включая коммуникацию с пользователями по реализованной функциональности — Дежурство на второй линии поддержки (по графику, в рабочие часы) Условия: — Удаленный формат работы — Оформление ИП или СЗ — Уровень заработной платы по договоренности

В этой роли вам предстоит заниматься развитием информационных технологий, проводить регулярный анализ, аудит бизнес-процессов компании, выявлять потребности в оптимизации и автоматизации, формировать предложения по автоматизации деятельности бизнес-подразделений компании на основании мониторинга современных ИТ-решений.

Location: Budapest, Budapest, Hungary 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 This role is responsible for overseeing the day-to-day performance and operations of the Customer Service team, ensuring customers consistently receive a high-quality and efficient service. You’ll monitor key performance indicators such as customer satisfaction, productivity, response times and service quality, using these insights to identify trends and drive improvements. You’ll also play an important role in coaching and developing customer service agents, managing workforce schedules, supporting recruitment and partnering with teams such as Learning & Development and other key stakeholders to improve processes and address operational challenges. This is a hands-on leadership role suited to someone who enjoys developing people, solving problems and continuously improving the customer experience. What You’ll Be Doing Overseeing Customer Service Operations, including monitoring and reporting metrics such as customer satisfaction score, productivity, response speed, and any metric that affects the service quality. Ensure good quality of services and strict adherence to processes. Work cross-functionally with stakeholders and support teams to ensure best-in-class customer service. Participate in recruitment activities (screening, interviewing). Day to day responsibilities include: -Ensuring daily operation runs smoothly. Report incidents to stakeholders in a timely manner. -Provide performance monitoring of KPIs, identify trends and issues in Service quality. -Conduct weekly/monthly performance reviews with customer service agents. -Coordinate with the L&D team to conduct ad-hoc pieces of training, and/or re-training. -Conduct process update/improvement projects and workshops. -Communicate business updates, policy changes, and any relevant information to stakeholders in a timely manner. -Planning customer service agent's monthly schedules while managing daily shrinkages What We Look For In You Bachelor’s degree or relevant experience of at least 3 years in leading a team in a call center environment. Experience leading large (>15 members) and diverse teams. Proven experience and knowledge in effective hiring, training, coaching, and people management practices. Strong planning and interpersonal skills as well as process-driven and detail-oriented personality. A team player with the ability to work in a cross-functional environment and to lead complex operational initiatives. Fluency (Verbal & Written) in English is required – other language is a plus. Enthusiastic in new technologies with a strong desire to adopt technologies to improve organization effectiveness & business processes. Willingly to work according to given schedule to support 24x7 operations. Display ownership and accountability for offering solutions to benefit our customers and the business Nice to Haves Additional European language skills are highly desirable. Familiarity with cryptocurrency and/or finance-technology industry. Experience and flexibility working with diversified teams across global offices and time zones. Working knowledge of CRM tools, such as Zendesk. Basic computer knowledge: MacOS, Lark, Microsoft Office, and G-Suite Perks & Benefits Competitive total compensation package L&D programs and Education subsidy for employees' growth and development Various team building programs and company events Wellness and meal allowances Comprehensive healthcare schemes for employees and dependants More that we love to tell you along the process! #LI-GB1 #LI-HYBRID 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 .

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

Location: Constanta, Romania Workplace: on-site ✨ About the Role ︁︎️️︊︁️︀​︂︆︄︄​︁︁︎︌​︈︂︇︍​︈︆︅️︊︄︈︌︊︎︂︎ We’re looking for a results-driven, people-focused Commercial Team Leader to manage our acquisition team, drive performance, and shape commercial strategy. If you love leading people, turning goals into results, and working in a fast-paced, international environment — this is your next big step. 🎯 Who You Are ✔ You have leadership experience (min. 6 months) and a passion for helping people grow. ✔ You’re people-oriented and know how to inspire, coach, and empower your team. ✔ You’re results-focused and motivated by impact and measurable outcomes. ✔ You’re hands-on, working side-by-side with your team every day. ✔ You communicate confidently in English (B2+) and Spanish (at least B1) and thrive in a multicultural setting. ✔ You hold a bachelor’s degree (or equivalent). 💼 What You’ll Do Lead and support a team of 5–7 of prospectors. Oversee daily operations and ensure commercial objectives are met. Track KPIs, analyze results, and propose action plans. Recruit, train, coach, and motivate your team toward performance. 🎁 What We Offer 💰 Competitive salary + monthly performance bonuses 📅 Work schedule business from Monday to Friday, office base in Constanta 📚 4-month training & coaching program focused on leadership, KPI tracking, and reporting 📈 Clear career growth path in a dynamic international business ✈ Frequent international travel to partner offices, trade fairs, and strategic business events 🌍 Collaboration with colleagues across 9 countries and exposure to global markets 📦Flexible benefits package – flexible perks, private health insurance, gym membership, meal vouchers, and more 🧠 Continuous development programs, language courses, and leadership training initiatives 📩 Apply now and take your leadership career to a global stage — where ambition meets real growth and your impact drives results. 🌍 About VEO VEO Worldwide Services is an international clearance company with over 19 years of experience, part of the NOZ Group, the European leader in destocking with over €1 billion turnover. We are more than 1,000 colleagues across 9 countries, working with partners in 35 global markets (Europe & North Africa) 📦 Our mission: We help companies turn surplus stock into new opportunities, building a more sustainable global economy — while creating meaningful careers that grow with real impact. -

• Разработка и развитие модулей toolchain на Python: mors-linter, mors-builder, mors-deployer (CLI на Typer, packaging через uv/Hatchling). • Доработка и реализация интегрированного сценария на FastAPI: Web API (M-API), модули Repository, Transport, Deployment Orchestrator, Load, Administration;

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)

Задачи: — Разрабатывать и поддерживать сервисы на Python — Работать с базами данных: писать запросы, оптимизировать, проектировать структуры — Участвовать в проектировании архитектуры — от простых решений к масштабируемым — Следить за качеством кода: писать тесты, рефакторить, соблюдать современные стандарты разработки — Отвечать за сервис платежей и торговой системы игры, включая каталог товаров, игровые транзакции, интеграции с платежными платформами, начисление/списание валюты, выдачу предметов, возвраты и надежность платежного контура Требования: — Опыт разработки на Python от 4 лет — Любить кодить и делать это чисто — Понимать, зачем нужны тесты, и писать их — Интерес к мониторингу и работе приложений в продакшене — Умение мыслить прагматично: строить простые решения, которые можно развивать Будет плюсом: — Опыт работы с системами мониторинга (Prometheus, Grafana, Sentry или аналоги) — Опыт написания асинхронного кода — Базовое понимание Docker и CI/CD Условия: — Полностью удаленная работа — Гибкий график — ориентируемся на результат, а не на часы — ДМС после испытательного срока — Работа над растущим игровым проектом с активным комьюнити — Быстрые итерации и минимум бюрократии — Адекватная нагрузка — есть время думать, а не тушить пожары — Видимый результат — фичи напрямую влияют на продукт.

Обязанности: - Работа с legacy-кодом и его постепенный рефакторинг; - Переписывание и вынос логики в API;

• Разработка и развитие программной архитектуры. Предстоит обеспечивать стабильный обмен данными между подсистемами робота с частотой от 1 кГц, выстраивать взаимодействие с датчиками и исполнительными механизмами, контролировать задержки в критичных контурах.

- Build features across the stack using Ruby on Rails and React/TypeScript. - Build and evolve GraphQL APIs.