Senior AI Engineer, Agents (Python) (f/m/d)

Bliro:The AI assistant for field salesTakes desk work off sales reps' plates entirely, with more than one million customer touchpoints documentedTrusted by lighthouses of the German Mittelstand like igus, Lanxess and BrilluxBacked by 468 Capital, Lea Partners, Rockstart and more, with over €3M raisedSee Bliro in action: https://bliro.ioWhy We're Hiring This Role:Our chat agent and our voice to voice phone agent process and document thousands of customer interactions a week for field sales teams. Every answer has to be right, fast and useful on the road.Our backend engineers build the platform. We need a senior AI engineer who owns agent quality: what the agents say, how well they say it, and how we prove they got better.You'll own prompting and context, model benchmarking for our use cases, evals, and the agent harness behind both agents. You join a small team of high performing specialists who own the core of our agents. This role is about orchestrating and evaluating models, not training them.What You'll Do:30 Days: Map Bliro's chat and voice agents end to end. Partner with the backend engineers, review real user conversations, identify the biggest failure modes, and ship an initial improvement.60 Days: Own agent quality measurement. Build eval sets and metrics for our key use cases, benchmark models on quality, latency and cost, and ship a change with a measurable improvement against the baseline.90 Days: Establish a repeatable model for improving agent quality. Run evals on every prompt, model and harness change, turn real conversations into new test cases automatically, and set the longer term roadmap for agent quality.Who You Are:Evidence of ownership and shipping LLM agents to real users and proving with data that they got better. You can demonstrate excellence and pursued a technical major at one of the major technical universities like TUM, ETH, KIT, RWTH, EPFL, etc.Strong Python and the ability to debug agent behavior across prompts, tools, context and mod