> Markdown version of [/jobs/ext/1680061-data-science-leader](https://www.wearedevelopers.com/jobs/ext/1680061-data-science-leader). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Data science leader - **Company:** Payflow. Fever - **Location:** Madrid, Spain - **Contract:** Permanent contract - **Skills:** Python (Programming Language), Machine Learning, NumPy, Recommender Systems, Tensorflow, SQL Databases, Pytorch, Pandas, Build Management, Scikit Learn, Machine Learning Operations - **Published:** July 10, 2026 - **Apply:** https://es.trabajo.org/oferta-5354-2f42430750b0170091977f51839ab768 ## About the Role maintainable, and reproducible code, and can prototype ideas quickly when needed. - You have experience leading data science projects and know how to deliver valuable insights without overcomplicating the solution. - You enjoy helping others grow, sharing feedback, and fostering a supportive, collaborative work environment. - You are curious, resourceful, and proactive when faced with complex challenges. Nice to Have - Experience with recommendation systems, Bayesian modeling, or causal inference. - Background in growth, marketing analytics, or digital product optimization. - Familiarity with ML frameworks like PyTorch, JAX, or TensorFlow. - Exposure to experimentation platforms or production ML pipelines. Benefits & Perks - Bonus linked to performance. - Stock options. - 40% discount on all Fever events and experiences. - Flexible hybrid model. - Health insurance and flexible compensation options via Cobee. - English classes. - Gympass membership. - Salary ## Description Data Scientists, helping them grow technically and professionally. - Design and build models for personalization, forecasting, user behavior analysis, and marketing efficiency. - Collaborate with Product, Engineering, Marketing, and other teams to turn data insights into real-world impact. - Help prioritize projects effectively based on value and feasibility, keeping a strong product and user focus. - Play an active role in hiring, onboarding, and nurturing an inclusive team culture. - Partner with senior leaders to inform strategic planning for the Data function at Fever. Who You Are - You have strong foundations in statistics, machine learning, and mathematics (Master's or PhD is a plus). - You are confident in exploring data, designing models, and evaluating their performance with rigor. - You thrive in ambiguity, balancing tech health with speed of impact and learning. - You are skilled in SQL and Python-based tools (Pandas, NumPy, Scikit-learn, etc.). - You write clean ## Related Videos - [Photonic Computing: Programming a New Class of AI Accelerators (incl. Live Coding)](https://www.wearedevelopers.com/videos/100196-photonic-computing-programming-a-new-class-of-ai-accelerators-incl-live-coding) - [Advanced Typing in TypeScript](https://www.wearedevelopers.com/videos/496-advanced-typing-in-typescript) - [Vectorize all the things! Using linear algebra and NumPy to make your Python code lightning fast.](https://www.wearedevelopers.com/videos/562-vectorize-all-the-things-using-linear-algebra-and-numpy-to-make-your-python-code-lightning-fast) - [Data Science in Retail](https://www.wearedevelopers.com/videos/586-data-science-in-retail) - [Python-Based Data Streaming Pipelines Within Minutes](https://www.wearedevelopers.com/videos/1233-python-based-data-streaming-pipelines-within-minutes) - [Geometric deep learning for drug discovery](https://www.wearedevelopers.com/videos/264-geometric-deep-learning-for-drug-discovery) ## Related Articles - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk) - [Software Engineer Salary London](https://www.wearedevelopers.com/magazine/252-software-engineer-salary-london) - [Data Analyst Salary in the UK](https://www.wearedevelopers.com/magazine/278-data-analyst-salary-in-the-uk) - [Data Analyst Salary Germany](https://www.wearedevelopers.com/magazine/277-data-analyst-salary-germany) - [Highest Paying Tech Companies in Europe](https://www.wearedevelopers.com/magazine/162-highest-paying-tech-companies-in-europe)