Senior QA Engineer (Back End)

About the Role You will plan, prepare, and maintain test cases and test documentation. You will drive manual and automated API testing using tools such as Postman and Swagger and work hands-on at the service layer. You will take an active role in the release process at all stages, gather information from developers, report and track defects, and collaborate with analysts on feature requirements. You will proactively work to optimize test cycle length and use automated testing frameworks in C#, JavaScript, or Go. You will use Atlassian tools (Jira, Confluence) and version control platforms (Bitbucket or GitHub) to document and track your work.

Requirements 3+ years of hands-on Back-End / API testing experience Deep, day-to-day experience at the service layer Experience with API testing tools such as Postman and Swagger Hands-on experience in automated testing using C#, JavaScript, or Go Proven defect detection, documentation, and tracking experience for Back-End systems Experience with Jira and Confluence Experience with version control platforms such as Bitbucket or GitHub Knowledge of software development methodologies and the SDLC Ability to prioritize tasks, manage workload, and identify quality or timeline risks Strong analytical and investigative problem-solving skills Good English for documentation; Ukrainian or Russian for internal communication Nice to have: experience with Web3 and non-custodial wallets Nice to have: knowledge of smart contracts and blockchain basics

Responsibilities Plan, prepare, and maintain test cases and test documentation Drive manual and automated API testing using Postman and Swagger Participate in the release process at all stages Collaborate with developers to gather information, report issues, and track resolutions Analyze feature requirements with analysts and developers Optimize test cycle length

Benefits Premium tariffs for company product Semi-remote work with flexible hours Home office allowance Virtual share options scheme after the probation period Comprehensive medical insurance after the probation period Generous vacation policy: 20 business days Paid sick leave, birthday, and anniversary leave Length of service holidays Online events for learning and enjoyment Coworking facilities and parking compensation in Wrocław and Kyiv Funding Investors Senior Application Security Engineer Tangem AG · 1 day ago Senior Cyber Security Engineer Avara · 1 day ago Python Automation Developer (Investment Products) Tangem AG · 3 weeks ago Senior Backend Engineer (Node.js / Web3 / Distributed Systems) deBridge Finance · 3 weeks ago Software Backend Engineer Sardine · 4 weeks ago Funding Investors Senior Application Security Engineer Tangem AG · 1 day ago Senior Cyber Security Engineer Avara · 1 day ago Python Automation Developer (Investment Products) Tangem AG · 3 weeks ago Senior Backend Engineer (Node.js / Web3 / Distributed Systems) deBridge Finance · 3 weeks ago Software Backend Engineer Sardine · 4 weeks ago