• Performed UI, functional, and API testing for web applications (including end-to-end flows)
• Tested REST APIs using Swagger (request/response validation, status codes, payload verification)
• Designed and maintained test cases (100+), including pairwise combinations for complex filtervalidation
• Validated business logic (user roles, statuses, permissions) via API and UI
• Wrote SQL queries for data validation in ClickHouse and analyzed data in MongoDB
• Ensured data consistency between UI, API, and database layers
• Deployed and tested changes via Jenkins and GitLab CI/CD pipelines
• Used Docker for building and running application environments (basic level)
• Conducted regression testing and supported full release cycle, including writing release notes
• Identified edge cases, improved test coverage, and contributed to API and UX improvements

• Sole QA Engineer responsible for the quality of a web platform and desktop localization tool
• Owned the full QA process from requirements review to release
• Performed manual functional, regression, exploratory, UI, and API testing
• Tested end-to-end user flows: authentication, application download, and in-app localization
• Conducted REST API testing using Postman, including authorization and permission checks
• Created and maintained test documentation (test cases, test scenarios, checklists)
• Validated data integrity using SQL queries (SELECT, JOIN, ORDER BY)
• Participated in planning sessions, identifying risks, gaps, and inconsistencies in requirements
• Prevented defects at early stages through proactive QA involvement

• Performed manual functional, regression, and exploratory testing of a desktop application
• Tested UI/UX, business logic, and complex end-to-end user flows
• Conducted REST API testing using Postman (including authorization and request validation)
• Created, updated, and maintained test documentation (test cases, checklists)
• Reported and tracked defects in Jira, collaborating closely with developers
• Participated in Agile/Scrum ceremonies and contributed to quality improvements

Manual testing of websites and mobile apps.