This is an opportunity for an experienced and talented Sr. QA Engineer/SDET to help build an innovative and market leading product at a fintech from an early stage. The Senior QA Engineer / SDET will contribute to scaling our blockchain and AI testing practices focusing on blockchain validation, verification and testing processes using various non-UI and UI methods. This role blends traditional automation engineering with protocol- level validation, observability-driven testing, and infrastructure-aware debugging. The individual will work in partnership with senior engineers as well as business to ensure quality delivery of solutions and implementations.✅ Is that you?Roughly 5+ years experience in software testing/sdet roles with an emphasis on various automated solutions where UI is not the main focusExperience with blockchain-based solutions in testing and validationExperience with Foundry/Hardhat in either testing and/or development capacityExperience with Smart Contract development (Solidity,Rust) challengesStrong problem-solving skills including someone who:Investigates root causes, not symptomsUses multiple system surfaces to validate truthUnderstands eventual consistencyIs comfortable testing infrastructure without GUIsTreats observability as a testing toolThrives in ambiguous, evolving environmentsBlockchain internal architecture familiarity (e.g. EVM vs IBC vs Consensus)API/RPC/gRPC Testing experience with industry tools and/or home grownDatabase solutions such as MongoDB, PostGres or other NoSQL solutionStrong understanding of SDLC and STLCKey responsibilities and your contributionAbility to break down solutions conceptually into testable components and develop plans for testing, verification and validationIdentify solution risk areas and develop test harnesses that fit into the SDLCUtilize tools and test harnesses to accelerate current testing practicesWork with Engineering team to evolve testing practices to improve coverage, ensure compliance and accelerate timelinesDemonstrate test coverage with test solutions aboveIntegrate test practices into CI/CD solutions that generate metrics and visibilityPerform functional, regression, integration, and performance testing using solutions aboveCollaborate with developers, product managers, and other stakeholders to understand requirements and ensure comprehensive test coverageFoster an open-minded approach with regards to test tools and approachesIdentify, document, and track bugs using bug-tracking tools (e.g., JIRA)Participate in Agile ceremonies such as sprint planning, daily stand-ups, and retrospectivesContinuously improve testing processes and strategies to enhance software qualityIdentify inconsistencies in requirements including key responsibilities, skills or qualificationsWhat's working at Dev.Pro like?30 paid days off per year — take them whenever you want for vacation, holidays, or personal time5 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 childPartially covered health insurance after the probation, plus a wellness bonus for gym memberships, sports nutrition, and similar needs after 6 monthsGrow your skills with English lessons, online training, conferences, and the option to explore new career pathsOur next steps:✅ Submit a CV in English — ✅ Intro call with a Recruiter — ✅ Interview 1 with Sr. QA Manager — ✅ Interview 2 with Senior Engineer and Managing Director of Engineering — ✅ Interview with Head of Product — ✅ OfferWe promise to respect your time, so if we think any of the above stages isn't needed, we'll let you know. All our interviews are focused around getting to know you, your skills and experience but it's also an opportunity for you to get to know us, and what we do. The whole purpose of the interview process is to make sure we're the right fit for each other. Please let us know if you need any accommodations for the interview process, and we'll do our best to help.Interested? Find out more:📋How we work💻 LinkedIn Page📈 Our website💻IG Page