Jannik Koch focused on improving the reliability of integration tests for the philips-software/amp-hal-st repository during December 2025. He addressed a critical issue in the FlashProxy integration tests by adding missing MethodDone calls, ensuring asynchronous operations signaled completion correctly. This C++ development work targeted flaky test outcomes, reducing false negatives in continuous integration and supporting release readiness. By enhancing test instrumentation and traceability, Jannik enabled faster debugging and more deterministic test results. His efforts in integration testing and software testing contributed to stronger test coverage and stability for the Amp HAL ST module, reflecting a thoughtful approach to engineering quality.