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# Data Science Manager

- **Company:** Macadam Technologies, S.l.
- **Location:** Spain
- **Contract:** Permanent contract
- **Skills:** A/B Testing, Data Analysis, BigQuery, Fraud Prevention and Detection, Python (Programming Language), Machine Learning, Recommender Systems, Mixpanel, SQL Databases, Usage Analysis, Model Validation, Firebase, Machine Learning Operations
- **Published:** July 22, 2026
- **Apply:** https://es.trabajo.org/oferta-5354-1afc36e12d91d597e72db0d85aea4fcb

## About the Role

Our team is growing fast, and our ambitions are global. We operate at the intersection of health, gamification, and technology, and we're building a world-class data team to support this growth. If you're passionate about using data and machine learning to build products that improve lives at scale, we'd love to meet you. Please submit your CV in English. THE ROLE We are looking for a Senior Data Scientist to help shape Macadam's product and growth strategy through machine learning, experimentation, and advanced analytics. This is a hands-on senior role with ownership from problem definition through deployment and impact measurement. You will partner closely with Product, Growth, Marketing, Engineering, and Analytics teams to build data-driven solutions used by millions of users. RESPONSIBILITIES Identify and lead data science opportunities that improve growth, engagement, retention, revenue, and user experience Build machine learning models for personalization, recommendations, user, pipelines and production machine learning workflows Strong knowledge of statistical modeling, experimentation, and model evaluation Experience working with large behavioral, transactional, or product datasets Strong product and business mindset, with a focus on measurable outcomes Excellent communication and cross-functional collaboration skills Fluent in English NICE TO HAVE Experience with consumer mobile apps, gaming, advertising, loyalty, or rewards products Experience with recommender systems, personalization, churn, LTV, or fraud models Experience with causal inference, uplift modeling, or large-scale experimentation Familiarity with mobile attribution frameworks, including Apple's SKAdNetwork WHAT'S IN IT FOR YOU Be part of a mission-driven company making a tangible difference in people's lives, one step at a time. Real ownership: lead high-impact data science initiatives and build solutions used by millions from day one. Hybrid working culture with international flexibility. 4
additional Macadam holiday days. We don't just talk about change - we walk it. Make it happen - take ownership, drive outcomes that matter. Trust the data - decide clearly, act confidently, measure what counts.

## Description

behavior prediction, segmentation, and forecasting Develop solutions supporting churn prevention, lifetime value optimization, fraud detection, and Macadam's reward economy Design and analyze experiments using A/B testing, causal inference, and other advanced statistical methods Take models from initial exploration to production, working closely with Data and Engineering teams Define clear success metrics and evaluate solutions based on measurable product and business impact Communicate findings and recommendations clearly to technical and non-technical stakeholders Contribute to Macadam's data science roadmap, standards, and best practices WHAT YOU'LL BRING 5+ years of experience in Data Science, Machine Learning, Applied Science, or a similar role Strong proficiency in Python and SQL Experience using BigQuery, GCP, dbt, and product analytics tools such as Mixpanel or Firebase Analytics Experience developing, deploying, and evaluating machine learning models Familiarity with data


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