Quality Engineering · AI Testing · Team Leadership
Quality Engineering Lead
Altlußheim, Germany
14+ years shaping quality at the intersection of engineering and AI. Team Lead QA at DeepL — pioneering test strategies for non-deterministic AI language products where classical QA reaches its limits. From 0% to 90% automation. Remote-first since 2020.
Open to new opportunities
DeepL
Oct 2020 – Present · Remote
CurrentBuilt and lead a QA team of up to 3 engineers — QA strategy, prioritization, performance management
Delivered DeepL's first full E2E test automation for the macOS app — 30% coverage, 2 hrs saved per release cycle
Built test automation for the Windows app in C# — 90% automation coverage
Consolidated mobile test infrastructure (2 repos → 1) — 70% less maintenance overhead
Defined QA strategy for AI language products across the full SDLC
Stabilized team after restructuring in Jan 2025 (5 → 2 engineers), rebuilding trust
Mentored junior & mid-level engineers · Code reviews · Knowledge sharing
Honeywell
Mar 2016 – Sep 2020 · Mannheim
QA and testing of enterprise software solutions
Technical support and root cause analysis (Groovy)
Rapid prototyping · User Acceptance Testing (UAT)
Movilizer
Oct 2010 – Mar 2016 · Mannheim
Prototype development for mobile enterprise apps · UI/UX design
QA · regression and system testing · customer support
Frontend development and media design for mobile applications
QA & Testing
Frameworks
Tech Stack
Leadership