Senior QA Engineer

1inch is the DeFi ecosystem building financial freedom for everyone. 1inch products help users and builders trade, hold and track digital assets - with the self-custody, comprehensive security and the intuitive user experience they need to unlock the potential of true crypto ownership. 1inch protocols and APIs provide core infrastructure across the DeFi industry and beyond.So if you’re someone who thinks big, moves fast and wants to make an impact right from day one, then get ready to join our industry-changing team.Location: We hire with a focus on Dubai and Europe. For this role, we prefer candidates who are either based in Dubai or working remotely within +/- 4 hours GST time.As a Senior QA Engineer for our Developer Portal, you’ll be responsible for ensuring the quality, performance, and security of our Web3 APIs SaaS platform. You’ll work on testing both developer-facing web applications and underlying APIs, validating blockchain integrations, and ensuring a seamless developer experience. Your work will directly impact the reliability of our DeFi infrastructure and the satisfaction of the developer community using the 1inch APIs platform.ResponsibilitiesDesign and execute test plans for UI, REST APIs, WebSocket APIsEnsure the accuracy of API documentation, code samples, and developer toolsConduct cross-browser and cross-device testing for the Developer Portal UIActively participate in the improvement of quality assurance processes and procedures on the projectDevelop test data strategies for blockchain environments using mocks, simulators, and public testnets. Partner with developers, product managers, and blockchain engineers to define acceptance criteria and embed QA early in the development cycleIntegrate automated tests into CI/CD pipelines (GitHub Actions)Mentor junior QA engineers on testing methodologiesRequirements5+ years in QA engineering, with 2+ years working on SaaS/API productsBasic knowledge of Web3 fundamentals: blockchain concepts, EVM chains, web3 nodes, wallets, and smart contractsProven experience in API testing and automation frameworksProficient in writing and maintaining unit, integration, and end-to-end testsExperience in CI/CD environments with Git-based workflowsGeneral understanding of Agile/Scrum methodologiesStrong understanding of QA methodologies for both UI and API layersSkillsJavaScript/TypeScriptUnit TestingAPI Testing - Rest, Websockets, Automation Frameworks - Playwright, CodeceptJSCI/CD - Git-based Workflows - Github ActionsTicketing Systems - JiraExcellent English communication skills (written and spoken)Nice to haveFamiliarity with observability tools (Grafana) for monitoring performance and stabilityPrevious experience in Web3, De-Fi, Blockchain and/or Cryptocurrency Why work for us?Join a young, creative team in a fast-paced and supportive environmentWe’re open to new ideas — if you’ve got a vision, pitch it and make it happenEnjoy competitive pay that matches your skills and experienceBe part of a company that’s shaping the future of DeFiTake time when you need it — we offer unlimited vacation daysGet fully compensated for your work gear — we’ll set you up for successTravel with us! We host an annual team retreat at a top international locationWe may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.