Senior Data Scientist

About The Job

We're looking for an experienced Senior Data Scientist to join our Data Science team. You'll drive the re-imagining of our recommendation landscape: a project that will change how millions of people experience kununu. You'll work on a platform with a lot of traffic, so you can go from an idea to real results within weeks. On top of that you'll build agentic, LLM-driven applications on one of the largest collections of workplace insights in the German-speaking world, with a fast-growing stream of fresh feedback data. If you like to test hypotheses quickly and see how your models perform under real product constraints, this is the place for you.

Your Tasks

• Drive the evolution of our recommendation landscape and shape how people discover employers, jobs and content on kununu. • Own the full data science process: from framing the problem and exploring the data to modelling, evaluation and production rollout. • Apply methods such as bandits and reinforcement learning to personalize content in a live, high-traffic environment. • Design and build LLM-driven, agentic applications on top of a large body of unstructured data, and set up solid evaluation for them, including LLM-as-a-judge approaches. • Work closely with product and engineering to turn business questions into data science problems and bring your models into the product. • Define with product what success looks like: choose the right metrics and evaluation strategy, run experiments, and turn hypotheses…