About HappyRobot:
Our platform is battle-tested in the most demanding environments - where AI has real consequences. We started in logistics, built our own voice stack, models, and orchestration layer from the ground up, and are now bringing that infrastructure to every enterprise that runs the real economy. Learn more about our vision in our manifesto.

About the Role:
You’ll help make data a core part of how we build and improve HappyRobot’s products.

You’ll work closely with Product, Engineering, and Machine Learning teams to measure how changes to our models, agents, and product features affect real-world performance. You’ll define meaningful metrics, design experiments, and conduct deeper analyses to understand how our agents create value for clients.

Your work will range from evaluating A/B tests and model changes to analyzing millions of conversations and workflows. You’ll turn complex data into clear insights that influence our product and ML roadmaps.

What You’ll Do:
- Define and track product, feature, and agent-level metrics.
- Design, run,



and interpret A/B tests for model changes, prompts, agent behavior, workflows, and product features.
- Measure how the performance of our agents affects client outcomes, such as task completion, operational efficiency, response quality, and automation rates.
- Connect offline model evaluations with production performance and real-world customer impact.
- Conduct deep analyses across conversations, workflows, and product usage to identify opportunities and explain differences in performance.
- Investigate anomalies and regressions, perform root-cause analyses, and recommend improvements.
- Build statistical models, simulations, and analytical frameworks to support product and ML decisions.
- Partner with Engineering to improve instrumentation, data quality, experimentation systems, and analytical data models.
- Build dashboards and self-serve tools that help teams understand product and agent performance.
- Communica

📌 Data Scientist (Barcelona)
🏢 Happyrobot
📍 Barcelona