Kateryna D.

Conducted in-depth testing of complex database relationships and administrative systems to ensure data integrity, consistency, and correct system behavior. Performed comprehensive testing of web and mobile applications, including POS systems and payment processing flows, validating functional correctness, transactional accuracy, and error handling. Verified end-to-end user flows, calculation logic, and implemented algorithms against business requirements. Analyzed system logs and application metrics to identify root causes of defects, proactively troubleshoot issues, and contribute to improved system stability, reliability, and overall product quality.

Conducted comprehensive end-to-end testing of a mobile application on both iOS and Android platforms, ensuring stable functionality across different devices and OS versions. Managed, validated, and verified application content updates via the admin panel, ensuring correctness and consistency before release. Built testing processes and test cases from scratch, creating clear and structured QA documentation that became a foundation for future team members. Performed cross-platform compatibility testing and regular regression testing to ensure new changes did not impact existing functionality and overall product stability.

Performed web and mobile testing, including verification of role-based permissions, and acted as Tech Lead by managing a manual QA team, reviewing and improving test cases and test plans, conducting requirements analysis, and collaborating with stakeholders to ensure high product quality and efficient releases.