Kerim H.
Senior QA Engineer / Lead QA Engineer / ISTQB Certified
I help teams release reliable software through practical QA strategies, thorough manual testing, and maintainable test automation. I'm Kerim, a Senior QA Engineer and Automation QA Lead with 8+ years of experience testing web applications, mobile apps, APIs, and connected devices. I've worked with teams across healthcare, insurance, wellbeing, education, and IoT, contributing both as a hands-on engineer and as a QA lead managing and mentoring teams of around 10 engineers. ✓ 100% Job Success History ✓ 9000+ Combined Hours Logged ✓ ISTQB Certified Whether you need an automation framework built from scratch, stronger regression coverage, or someone to take ownership of your testing process, I can help. What I bring to your project: • Web automation — Playwright with TypeScript, Selenium with C#/.NET, and Cypress. Reliable end-to-end tests, reusable frameworks, and coverage of critical user journeys. • Mobile automation — Appium with WebdriverIO and TypeScript/JavaScript for iOS and Android, including real-device testing through BrowserStack. • API testing — Functional, integration, and negative testing for REST and GraphQL APIs, including authentication, authorization, and data validation. • AI-assisted testing - ChatGPT/Codex and Claude to accelerate test design, automation development, and failure analysis, with outputs reviewed for accuracy and maintainability. Playwright MCP and test self-healing. • Performance testing — k6 load, stress, spike, and soak tests to evaluate response times, identify bottlenecks, and assess system behavior under pressure. • CI/CD integration — Automated testing in GitHub Actions, GitLab CI, Jenkins, Azure DevOps, and TeamCity, with actionable reports to support release decisions. • Manual testing and QA leadership - Exploratory testing, regression, UAT, test planning, risk-based prioritization, code reviews, and team mentoring. What you can expect: ✓ Proactive communication and clear, actionable bug reports ✓ Maintainable automation your team can confidently build on ✓ Testing prioritized around business impact and real user behavior ✓ A dependable partner who follows issues through to resolution Whether you need help with a specific release or a long-term QA partner, let’s talk about your product, your current challenges, and what you need to ship with confidence.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $13k
Billed in all: $181,366$181k
$4.5k in the last 6 months
Across 8 contracts
Earnings, last 30 days
Skill rankings: Top 5% in Game Testing
Ranked by MRR among everyone on Upwork with the skill.
- #16Load Testing214 freelancers · 🇧🇦 #1Top 7%🇧🇦#1 of 1
- #39Game Testing852 freelancers · 🇧🇦 #1Top 5%🇧🇦#1 of 5
- #46Performance Testing563 freelancers · 🇧🇦 #2Top 8%🇧🇦#2 of 3
- #102Automated Testing1,000 freelancers · 🇧🇦 #2Top 10%🇧🇦#2 of 6
- #117Mobile App Testing1,834 freelancers · 🇧🇦 #2Top 6%🇧🇦#2 of 6
- #122Usability Testing1,980 freelancers · 🇧🇦 #2Top 6%🇧🇦#2 of 5
- #127Functional Testing1,649 freelancers · 🇧🇦 #2Top 8%🇧🇦#2 of 7
- #142Web Testing1,763 freelancers · 🇧🇦 #2Top 8%🇧🇦#2 of 7