About HappyRobot
HappyRobot is the infrastructure for enterprises to build and orchestrate AI workforces. Our AI workers don't just communicate - they make decisions, take action, and run operations autonomously across voice, email, and enterprise systems. Born in Y Combinator (S23) and backed by a16z and Base10 with over $60M raised, we power critical operations for general enterprises worldwide.
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.
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.
Communicate findings and recommendations clearly to technical and non‑technical stakeholders.

Must Have

4+ years of experience in Data Science, Product Analytics, or another highly quantitative pr

📌 Data Scientist (Barcelona)
🏢 Voice AI Space
📍 Barcelona