Senior Technical QA Tester (f/m/d)

We are Kolibri Games - a mobile games developer from Berlin. We believe that with the best people, we can make games that players will enjoy for years to come. Our games have defined the idle genre, and bring enjoyment to hundreds of millions of players all around the world.

This is possible due to the talented people who make us who we are. ‘Kolibris’, as we call ourselves, are on a mission to continue making great games and we're looking for new talent to join our team.

We strive to offer you a fair recruitment process and a great candidate experience, as well as a friendly environment to work in, with plenty of opportunities to learn and grow. Senior Technical QA Tester (f/m/d) We’re looking for a Senior Technical QA Tester to join the Idle Bank Tycoon team in Berlin.

You’ll own the quality of the game end-to-end: from feature testing and test automation to performance profiling and process improvement; embedded in a cross-functional team alongside Product, Game Design, and Engineering.

If you enjoy both the technical depth of engineering and the craft of making sure things actually work for real players, this might be the right fit.

Responsibilities

Own features and test coverage end-to-end, from identifying QA flows and edge cases based on product requirements to release sign-off and post-release monitoring of the game. Design, write, and review test plans and test maps; review submissions from other QA team members and define the QA strategy for complex features.

Perform technical QA analysis, when needed, including runtime profiling, memory analysis, CPU/GPU usage, and build size validation on iOS and Android. Monitor and investigate regressions: frame rate drops, load time increases, APK/IPA size changes across builds.

Proactively coordinate team playtests and continuously monitor release performance, raising red flags early. Drive continuous improvements to QA process and tooling, partnering with the QA man