Kateryna Kulagina

Senior General QA Engineer

Dnipro, Ukraine

Joined Oct 2026

I have spent most of my career in quality assurance, first on mobile banking releases and later on large backend and cloud systems. At Temy I led QA for critical mobile and backend modules, including REST API integrations between cloud services. Most of my work there was API testing in Postman and Swagger, covering authentication, error handling and data integrity.

I am strongest at finding the gaps that others miss. I reduced regression testing cycle time by 20% by improving test documentation and taking an API-first approach. I also work well with Product Owners and developers, and I review requirements early to find testability problems before code is written. I use AI tools such as Claude Code to analyze changes and extend Playwright tests, but I check every suggestion against business rules.

I care about software that works correctly for the people who use it. Clear requirements, careful test design and honest reporting of risk matter more to me than the number of tests run.

Experience

Senior QA Engineer
Temy
2021 - 2026 · 5 years · Remote · Full time
- Led QA for critical mobile and backend modules, including REST API integrations between cloud services.
- Designed and executed Postman and Swagger API test cases covering functional correctness, edge cases, error handling, authentication, and data integrity, and reduced regression testing cycle time by 20% by optimizing test documentation and adopting an API-first testing approach.
- Used Claude Code to analyze code changes for likely defects and to create and extend Playwright end-to-end tests, reviewing every suggestion against business rules to catch incorrect assertions and selectors.
- Participated in requirement reviews and technical discussions with Product Owners and developers to identify testability gaps before development.
- Monitored Jenkins CI/CD pipelines and analyzed logs and traces in Kibana and Honeycomb to locate defects in microservices.
QAREST APIPostmanTest CasesRegression TestingMobile TestingEnd-to-End TestingAPI Testing
Senior QA Engineer
DataArt
2019 - 2021 · 2 years · Hybrid · Full time
- Owned quality for products in The Orchard's global music and media distribution ecosystem.
- Analyzed and refined business requirements together with product stakeholders.
- Validated data integrity and financial data using complex SQL queries.
- Planned risk-based regression testing for releases.
- Ran cross-team integration testing between distributed teams in New York and London.
QAMediaRegression TestingSQLIntegration TestingRemote WorkTest PlanningRequirements AnalysisBusiness AnalysisData Quality