Yaroslava Bilosvit

Automated 250+ API and UI tests using Python (PyTest) and Playwright, reducing regression time by 70% and improving reliability. Ensured API reliability by validating endpoints and documentation through Swagger, identifying 90% of issues during early testing. Led full-cycle testing for a new Android and iOS app, meeting a tight release schedule while maintaining high quality standards. Implemented core Scrum ceremonies and practices as Scrum Master, increasing feature delivery speed by over 50% and improving overall product quality. Trained and onboarded a new QA Engineer, enabling full integration within one month and providing ongoing support thereafter. Ensured test data integrity with HeidiSQL scripts, preventing data mismatches in the transition from the legacy system to the new AI-driven application. Validated security fixes using Burp Suite to ensure vulnerabilities were effectively resolved. Validated requirements in Figma early in the development cycle, shifting testing left a

Reduced manual QA time by 60% by automating 50+ UI tests in Selenium and later migrating the framework to Playwright for improved reliability and execution speed. Expanded backend test coverage by developing and maintaining 100+ integration tests in C# (NUnit), improving defect detection and regression testing speed. Monitored and analyzed performance and error trends in Grafana, proactively detecting issues and improving application reliability. Developed comprehensive documentation enabling the support team to quickly resolve users’ urgent issues and understand core application functionalities. Investigated user-reported issues with product owners, identifying root causes and driving effective resolutions. Conducted knowledge-sharing sessions to promote cross-functional testing, and mentored junior testers.

Improved bug detection and regression coverage across checkout and payment flows, reducing production incidents. Designed regression and integration testing suites using Salesforce and TestRail. Validated third-party API integrations to identify functional issues before deployment. Trained new QA Engineers in internal tools and processes, accelerating onboarding by 50%. Analyzed UX and functional compliance to ensure feature alignment with design and business requirements.