Manual QA Engineer

We are looking for a Senior Manual QA Engineer to join our QA team and take a leading role in testing complex, data-driven systems.

In this role, you'll be responsible for end-to-end testing of business-critical applications, working with DWH and ETL processes, APIs, and complex data validation. You'll collaborate closely with Development, Product, and Project Management teams while leveraging AI-powered tools to enhance testing efficiency and quality.

Responsibilities

• Perform end-to-end testing of complex, data-driven systems and ETL processes
• Execute manual testing of Web applications and APIs
• Analyze data and write complex SQL queries for validation and investigation
• Design, write, and execute test scenarios and test cases
• Investigate issues through log analysis using Kibana or similar tools
• Document, report, and track defects throughout the testing lifecycle
• Utilize AI tools such as GitHub Copilot, Claude Code, or similar to analyze requirements, generate test scenarios, investigate issues, write SQL queries, and support test automation
• Work closely with Development, Product, and Project Management teams throughout the software lifecycle

Requirements

• 5+ years of hands-on experience in Manual QA
• Proven experience using AI tools (such as GitHub Copilot, Claude Code, or similar) as part of the daily QA workflow
• Strong SQL skills, including complex queries, JOINs, and aggregations
• Extensive experience with API testing using Postman and Swagger
• Experience analyzing logs using Kibana or similar tools
• Experience testing DWH systems and ETL processes
• High level of English proficiency
• Strong analytical thinking, excellent communication skills, and the ability to work independently

Advantages

• Experience writing and maintaining automated tests using Claude Code, Codex, Chrome DevTools MCP, Playwright MCP, or similar tools
• Experience working with SingleStore databases