Data Scientist

Jobtailor; Barcelona; Presencial; EUR 70.000 - 110.000; Jornada completa

Descripción de la vacante

Jobtailor in Barcelona, Spain is seeking a data‑driven analytics expert to embed data at the core of our product development. You will work with Product, Engineering and Machine Learning teams to measure how changes to models, agents and features affect real‑world performance.

You will define meaningful metrics, design experiments, and conduct analyses to understand how our conversations and workflows create value for clients, turning complex data into clear insights that influence our product

Formación

• 4+ years in Data Science, Product Analytics, or another highly quantitative product role.
• Strong experience with experimental design, A/B testing, statistics, causal inference, and hypothesis-driven analysis.
• Advanced proficiency in SQL and Python.
• Experience defining and operationalizing product and feature metrics.
• Ability to translate ambiguous product questions into rigorous analyses and actionable recommendations.
• Strong product instincts and the ability to distinguish statistical significance from meaningful product or customer impact.
• Experience partnering closely with Product, Engineering, or Machine Learning teams.
• Strong written and verbal communication skills.
• High attention to detail and commitment to analytical accuracy.
• Founder mindset: ownership, independence, curiosity, and willingness to go deep.

Responsabilidades

• 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.

Conocimientos

Experiment design

A/B testing

Statistics

Data-driven decision making

Cross-functional collaboration

Communication

Herramientas

SQL

Python

Data visualization

Descripción del empleo

Responsibilities

• 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.

Qualifications

• 4+ years of experience in Data Science, Product Analytics, or another highly quantitative product role.
• Strong experience with experimental design, A/B testing, statistics, causal inference, and hypothesis-driven analysis.
• Advanced proficiency in SQL and Python.
• Experience defining and operationalizing product and feature metrics.
• Ability to translate ambiguous product questions into rigorous analyses and actionable recommendations.
• Strong product instincts and the ability to distinguish statistical significance from meaningful product or customer impact.
• Experience partnering closely with Product, Engineering, or Machine Learning teams.
• Strong written and verbal communication skills.
• High attention to detail and commitment to analytical accuracy.
• Founder mindset: ownership, independence, curiosity, and willingness to go deep.