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Senior Manual QA Engineer at Talentgrator. Perform manual functional testing of new features and system changes. Validate releases, including end-to-end and integration scenarios. Design and maintain test documentation (test cases, test plans, checklists). Identify, document, and track defects in a bug-tracking system. Work with API (Postman, Charles Proxy) and UI to investigate issues. Analyze defects and collaborate with developers to identify root causes. Participate in the release process and ensure product stability. 3+ years of experience as a QA Engineer. Solid understanding of SDLC and basic principles of distributed systems and microservice architecture. Hands-on experience in testing web applications, including REST API (Postman, Charles Proxy) and UI. Strong analytical and problem-solving skills. Good communication skills in Russian, both written and verbal. English level sufficient for reading and understanding technical documentation. Nice to have:. Experience testing financial or transactional systems where data integrity is critical. Knowledge of SQL, Kafka, Docker, and networking fundamentals. Broad technical mindset and curiosity about how systems work under the hood. Company Location: Czechia.