Gleb S.

QA Engineer | Software Tester | Automated Testing | AI Testing | SaaS

Top Rated Plus QA Engineer | $400K+ Earned on Upwork | 100% Job Success | 7,000+ Hours I help product teams ship with confidence by catching defects before they reach users. 🔍 Core work - Test automation: Playwright, Cypress (framework setup, CI/CD integration) - AI & LLM product testing: output validation, regression, edge case coverage - Manual QA: functional, regression, exploratory, smoke testing - Test documentation: test plans, test cases, checklists, bug reports - API testing: REST, GraphQL - Cross-browser and cross-device testing 📊 Results - 3,500+ hours on a single long-term SaaS engagement — trusted QA partner embedded in the team - Consistent 5-star reviews citing communication, reliability, and quality - Delivered QA across teams spanning 5+ years of Upwork engagements I write bug reports developers can act on immediately — clear reproduction steps, severity, screenshots. I embed cleanly into any team workflow using Jira, Linear, or GitHub Issues. Available for long-term contracts and ongoing retainers.