Michael Hoelzer

ISTQB-certified manual hardware and software tester with over 20 years of in-depth electrical engineering expertise and a proven track record in systematic testing of complex technical systems. Specialises in end-to-end testing, system testing and mobile application testing.

CORE COMPETENCIES TESTING & QUALITY ASSURANCE:

🏆 ISTQB Foundation Level Certification - International standards in test methodology

📱 Manual mobile app testing - Android/iOS applications (commissioning and monitoring tools)

🔧 End-to-end testing – Complete system validation from hardware to user experience

⚙️ System testing – Battery storage, heat pumps, fuel cell systems

🤖 Test automation – Robot Framework for recurring test cycles

📊 Test tools – Polarion ASM, Jira, Confluence for professional test documentation

---

ISTQB-certified manual hardware and software tester with over 20 years of in-depth electrical engineering expertise and a proven track record in systematic testing of complex technical systems. Specializes in end-to-end testing, system tests, and mobile application tests.

CORE COMPETENCIES TESTING & QUALITY ASSURANCE:

🏆 ISTQB Foundation Level Certification - International standards in test methodology

📱 Manual Mobile App Testing - Android/iOS applications (Commissioning and monitoring tools)

🔧 End-to-End Testing - Complete system validation from hardware to user experience

⚙️ System Tests - Battery storage, heat pumps, fuel cell systems

🤖 Test Automation - Robot Framework for recurring test cycles

📊 Test Tools - Polarion ASM, Jira, Confluence for professional test documentation