Intermediate/Senior Test Engineer Automation - OP02182

We are hiring in Europe! 🟢 Cobalt Streamworks is a global team of IT professionals helping tech companies scale their business through software engineering expertise. Operating as a remote-first company, our developers work across 55+ countries on five continents, giving us the flexibility and skillset to deliver high-quality engineering for projects of any size or complexity. Clear communication and following through on our commitments are at the core of how we work. Our people have the freedom to work from anywhere, along with the opportunity to grow — both professionally and personally — as part of a diverse, dedicated team. We invite a talented Intermediate Test Automation Engineer to join our team and contribute to a large-scale blockchain-based platform for private markets. In this role, you’ll help ensure quality across the full testing lifecycle, combining test automation with validation of complex blockchain-based systems. You’ll collaborate closely with engineering teams to deliver reliable, high-quality solutions and implementations. 🟩 What's in it for you: Contribute to an innovative blockchain platform designed to bring trust and transparency to private markets Gain new skills working with blockchain systems, distributed architectures, cloud infrastructure, and integration-heavy environments Join a small, highly technical team with real influence over product quality ✅ Is that you? 3+ years in QA//SDET roles with hands-on experience across the full testing lifecycle Experience with backend and non-UI-focused test automation Experience analyzing requirements and documentation to understand business logic Experience writing and executing functional, regression, and integration tests Experience testing REST APIs and backend services Familiarity with blockchain systems and blockchain integrations Exposure to smart contract testing and blockchain validation Proficiency in TypeScript and Node.js Strong understanding of SDLC and STLC Experience integrating automated tests into CI/CD pipelines Experience working with distributed systems and AWS-based environments Experience with MongoDB or PostgreSQL Strong analytical and problem-solving skills Ownership and accountability for assigned quality deliverables Strong communication and collaboration skills within Agile development teams Upper-Intermediate+ English level Desirable: Experience with Go (Golang) Experience with Foundry, Hardhat, or other EVM testing frameworks Experience with Ethereum (Solidity) or Tezos (LIGO) Experience with Layer 2 and blockchain protocol testing Experience testing asynchronous messaging systems (e.g., AWS SNS/SQS, Azure Service Bus) Experience with Kubernetes and Azure Experience with observability-driven testing Experience testing MCP protocols Experience with performance and load testing 🧩 Key responsibilities and your contribution In this role, you'll contribute to quality assurance across the full testing lifecycle, helping ensure reliable delivery of blockchain-based applications. Participate in the full QA lifecycle, from requirements analysis through test execution Analyze business requirements and documentation to understand business logic Contribute to test planning and test coverage Collaborate with engineering and product teams on requirements and acceptance criteria Build and maintain test suites, automation frameworks, and test harnesses Test blockchain integrations, smart contracts, REST APIs, JSON-RPC, MCP servers, and other blockchain-related endpoints Perform functional, regression, integration, and performance testing Work within complex distributed systems and AWS-based infrastructure Integrate automated test practices into CI/CD pipelines Investigate failures across distributed systems and blockchain integrations Contribute to technical documentation and quality reporting Contribute to improving testing processes and practices 🎾 What's working at Cobalt Streamworks like? ✔️ 30 paid days off per year — take them whenever you want for rest days, holidays, or personal time ✔️ 5 paid sick days, up to 60 days of medical leave, and 6 paid days off per year for major family events like weddings, funerals, or the birth of a child ✔️ Partially covered health insurance after the probation, plus a wellness bonus for gym memberships, sports nutrition, and similar needs after 6 months ✔️ Grow your skills with English lessons, online training, conferences, and the option to explore new career paths Our next steps: ✅ Submit a CV in English — ✅ Intro call with a Recruiter — ✅ Internal interview — ✅ Client interview — ✅ Offer Interested? Find out more: 📋How we hire 💻 LinkedIn Page 📈 Our website 💻IG Page By submitting application, I've read and agree to the Cobalt Streamworks Private Policy and Consent on Processing of Personal Data . I agree to have my Personal Data being stored and processed by Cobalt Streamworks . Originally posted on Himalayas