(Senior) QA Engineer - AI-Driven Testing (m/f/d)

Join 1KOMMA5° as a Senior QA Engineer to lead AI-driven testing initiatives, ensuring quality in mobile applications as part of a mission to revolutionize renewable energy.

• Own quality across our mobile products end-to-end: test strategy, execution, and production monitoring
• Work embedded in one or two cross-functional product teams and shape quality practices with engineers, product, and design
• Find the gaps in our current testing approach and close them
• Grow and maintain our automated test suite (Appium / BrowserStack). Keep it fast, stable, trusted, and focused on critical user journeys
• Advise engineers on testing strategy and testability early, at the design stage, not after the build
• Push AI-driven QA beyond test generation: bring in autonomous exploratory testing, intelligent orchestration, and self-directed testing workflows
• Build QA feedback loops that are tightly integrated with development. Quality should be a real-time signal, not a gate at the end
• Keep test infrastructure healthy: less flakiness, faster runs, results the whole team can act on
• Use AI tools wherever they make you and the team more effective, and figure out where autonomous QA can reduce repetitive manual work while preserving human judgment where it matters
• 5+ years of QA experience across manual testing, automation, and test strategy.
• Hands-on experience with mobile test automation (Appium or comparable) and cloud device farms (BrowserStack or similar)
• Experience integrating automated testing into CI/CD pipelines (we use GitHub Actions) and using quality signals to support rapid, reliable releases
• Strong understanding of mobile application architecture, client-server interactions, and API integrations, with a feel for common mobile failure patterns
• You understand the SDLC and can design test strategies around how complex products fail
• Practical experience leveraging AI in QA workflows such as exploratory testing, test case design, defect analysis, and autonomous testing agents. Or you have a clear vision for it and can show you've been building in that direction
• You care about user journeys and real-world scenarios, not just code coverage numbers
• Comfortable with ambiguity. You figure out the path forward when there's no playbook
• Clear communicator in written and spoken English

• German language skills
• Experience with energy systems, IoT, or climate tech
• Startup or scale-up experience
• Hands-on experience with LLMs or AI agents in a QA or DevEx context

• You are part of an international, dynamic, and highly motivated team of people who have proven to make things happen
• With your work, you accelerate the "energy transition" and hence have a direct impact on our climate
• Work with and learn from other super-smart colleagues
• You will enjoy direct contact with core decision-makers
• You will enjoy the best chances of entering full-time in one of Europe’s most thriving scaleups
• You work remotely (Germany-wide), with offices in Hamburg, Berlin or Munich
• Create a healthy balance alongside your work and enjoy all the benefits of the EGYM Wellpass
• Benefits and discounts are yours with Futurebens
• Whether city bike or e-bike - be flexible with our job bike leasing and do something good for the environment at the same time