Senior Quality Assurance Engineer

Delivered end-to-end QA consulting services for e-commerce, gaming, and aerospace products remotely. Maintained Playwright and TypeScript automation tests and used AI tools to support test-case generation, test-data preparation, requirements analysis, documentation, accessibility reviews, and UX analysis.

Performed frontend functional, UI/UX, API, SQL, microservices, and regression testing across web and mobile platforms. Applied risk-based testing under tight deadlines, validated high-volume payment and data flows, and maintained regression checklists.

Led QA processes and quality strategy design, introduced Shift Left practices, created test plans, test strategies, requirements systems, user flows, and Jira workflow improvements. Helped reduce post-release bugs by 80%, decrease visitor complaints by 60%, improve page load times by more than 67%, and improve overall site performance by more than 50% based on Lighthouse reports.

Worked on healthcare SaaS, enterprise photo stock, and sports betting applications in Agile environments using Scrum, Scrumban, and Agile-Waterfall practices. Performed functional, non-functional, regression, UAT, backend, API, and performance testing.

Validated REST APIs and database data using Postman, Swagger, SQL, and JavaScript-based Postman checks. Conducted root-cause analysis with DevTools and SQL, managed test cases and documentation in Spira, Jira, and Confluence, and refined requirements for new user stories.

Performed cross-platform testing for Android, iOS, iPadOS, and web applications. Used Android Studio and Xcode for device logs, Fiddler and Charles Proxy for HTTP analysis, and maintained internal C# ASP.NET Core and Java Spring Boot code. Identified critical security vulnerabilities, improved defect lifecycle management, and mentored new QA team members.

Bachelor's degree in Software Engineering, Kharkiv, Ukraine.

Completed company internal qualification for a General QA Position in Kharkiv, Ukraine.