22.07.2026 aktualisiert
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Software Development Engineer in Test (SDET) | QA Automation Engineer
Ostfildern-Nellingen, Deutschland
Weltweit
Bachelor of Science in Computer ScienceSkills
A/B TestingDatadogPostmanBrowserstackTest ScriptsCypressPlaywrightSentryRestful ApisPipeline-Berichterstattung
With over 5 years of experience in software quality assurance, I've helped dozens of companies ship bug-free software faster. From startups to enterprise-level applications, I bring a strategic approach to testing that prevents issues before they reach your users.
- I collaborate with developers and product teams to catch issues in the software development lifecycle.
- I create test plans and record test cases based on how users use the product.
- I build QA processes from the beginning and choose the right tools for Agile and DevOps environments.
- I prioritize testing efforts on the most critical parts of the product for software reliability.
- I do manual testing, smoke testing, sanity testing, regression testing, and API testing using tools like Postman.
- I use AI-powered tools to automate repetitive testing tasks. I test system integrations to make sure all parts of the system work well together.
- I perform cross-browser and cross-device testing using BrowserStack for consistent performance.
- I perform accessibility audits to make sure everyone can use the product easily.
- I check the product’s user experience (UX) to make sure it’s easy and enjoyable for customers.
- I help support teams review customer tickets to find real problems users are having.
- I prepare clear quality reports and updates so everyone knows the product’s quality status.
- I monitor tools continuously to ensure the system performs as expected. I mentor junior QA professionals, fostering growth in software testing and automation.
Erfahrung
Berufserfahrung5 - 10 Jahre
Freelancer seit2021
Sprachen
DeutschGrundkenntnisseEnglischverhandlungssicher
Projekthistorie
Established the QA function from scratch as founding QA engineer, defining test strategy, quality standards, and workflows. Architected an E2E test automation framework using Playwright and TypeScript. Built and maintained CI/CD pipelines with GitHub Actions. Designed a structured release process reducing customer-reported bugs by 30% and maintaining a zero critical-defect record. Accelerated test authoring using Claude AI, achieving 15% faster E2E coverage velocity. Led quarterly QA planning by defining OKRs and quality milestones.
Partnered with senior leadership to build a QA framework from scratch, establishing company-wide testing standards and workflows. Developed scalable test automation infrastructure and CI/CD pipelines that increased deployment frequency by 25% and reduced regression testing cycle time. Strengthened system reliability and release confidence through rigorous QA practices.
Delivered QA across 5-10 US-based clients in SaaS, healthtech, and HR/e-commerce domains. Authored and maintained manual test cases and test plans in Agile frameworks, executing 1,000+ manual test cases per release. Implemented and extended Cypress automated test scripts. Performed REST API testing and automation with Postman and Newman. Participated in release testing cycles and authored release notes.