We are looking for a Senior Data Scientist to join the Data Science team of an international technology company.

Key responsibilities

- Design and develop advanced analytical solutions to address complex business challenges.

- Apply statistical modelling, experimentation and causal inference techniques.

- Analyse large and complex datasets to identify patterns, trends and measurable business impact.

- Design and evaluate experiments to understand the effectiveness of different business strategies and initiatives.

- Select appropriate analytical methodologies, balancing technical complexity, reliability and scalability.

- Collaborate with Product, Data Engineering and ML Engineering teams to integrate analytical solutions into products.

- Communicate analytical findings and recommendations to technical and non-technical stakeholders.





- Contribute to technical discussions and knowledge sharing within the Data Science team.

Requirements

- 4+ years of experience in Data Science, Advanced Analytics or a related quantitative discipline.

- Strong knowledge of statistics, experimentation and analytical modelling.

- Hands-on experience with A/B testing and experimental design.

- Knowledge of causal inference methodologies, such as Difference-in-Differences, Synthetic Control, Propensity Score Matching or Uplift Modelling.

- Strong programming skills in Python and SQL.

- Experience working with large datasets and complex data environments.

- Ability to translate analytical findings into actionable business recommendations.

- Strong communication and stakeholder management skills.

- Fluent in English and Spanish.

📌 Senior Data Scientist (Bcn-Perm) (Barcelona)
🏢 Robert Walters
📍 Barcelona