We are looking for a Head of Data to take on one of WeWard’s biggest challenges: turning a massive stream of data (25M+ users, billions of tracked events) into a strategic lever to fuel our international growth.

Reporting directly to Tanguy (Co-founder), you will have full ownership of the company’s data vision and strategy. You’ll have the freedom to set the standards, choose the technologies, and build a robust and scalable organization capable of supporting a fast-growing consumer mobile app.

Your mission will be to expand and structure the Data team, which already includes a Senior Data Scientist (PhD) and an Analytics Engineer, by rapidly hiring Data Engineers, Analysts, and Fraud specialists to meet business needs. You will lay the foundations of a reliable and modern data platform and put data at the service of every team (Product, Growth, Marketing, Finance, Operations). At the heart of strategic decisions, you will directly shape initiatives around revenue optimization, personalization, fraud detection, LTV projection, and large-scale experimentation.

By joining WeWard, you will step into a role with massive impact, high autonomy, and the opportunity to design both a world-class data stack and data team.

Missions

• Drive the global data strategy in alignment with business objectives.

• Lead and grow a multidisciplinary team (Data Engineers, Data Analysts, Data Scientists, Fraud Analysts).

• Ensure the quality, reliability, and accessibility of data across all teams.

• Oversee the design, development, and maintenance of the data infrastructure (pipelines, cloud, monitoring).

• Foster a strong data-driven culture, enabling decision-making based on trusted insights.

• Lead high-impact analytical and scientific projects (LTV projection, fraud detection, personalization, A/B testing).

• Ensure compliance with data protection regulations (GDPR, privacy, security).

• 7+ years of experience in data, including at least 3 years in management.

• Proven track record of building and structuring a data team in a scale-up / B2C environment.

• Strong expertise with modern data stacks (BigQuery, Airflow, DBT, Metabase, Amplitude or equivalents).

• Solid background in data engineering and/or analytics, with a good understanding of data science challenges.

• Demonstrated ability to work cross-functionally with product, marketing, finance, and tech teams.

• Excellent communication, leadership, and mentoring skills.

Nice-to-have

• Experience in the mobile/app or adtech industry.

• Interest in applied AI (personalization, NLP, automation).

• 30-min call with Kaënaath, our Talent Acquisition Specialist. Together you’ll talk about your expectations and experiences, and she’ll introduce you to WeWard.

• 30-min call with Tanguy, your future manager. Here you’ll go in detail about the role’s missions.

• A case study followed by a 1.5 hour debrief with the Data team, including time for mutual feedback.

We finish with a tour of our offices to introduce you to other members of the team. And finally, if all goes well… Welcome! 🎉