Head of Data (FR)

WeWard SAS; Paris; Hybrid; EUR 120,000 - 190,000; Full time

Benefits offered by this job

Hybrid work

Learning & development budget

Central Paris office with amenities

Job summary

WeWard SAS, Paris-based, is seeking a Head of Data to lead data strategy and build a scalable data organization for a fast-growing consumer app with 25M+ users. You will shape data vision, governance and AI-powered product features across teams.

Reporting to the co-founder, you’ll hire engineers, analysts, and fraud specialists, drive data-driven decision making, and partner with product, marketing, finance, and tech to maximize growth and value.

Qualifications

• 10+ years in data with leadership experience.
• Proven ability to build and structure data teams.
• Strong experience with modern data stacks and analytics.

Responsibilities

• Drive the global data strategy in alignment with business objectives.
• Lead and grow a multidisciplinary data team.
• Ensure data quality, reliability, and accessibility across teams.
• Oversee data infrastructure design, pipelines, and monitoring.
• Foster a data-driven culture and measurable decision making.
• Lead high-impact analytical projects (LTV, fraud detection, personalization).
• Ensure GDPR/compliance across data practices.
• Embed AI at product and process level to accelerate impact.

Skills

Data leadership

Team management

Cross-functional collaboration

Data strategy

Tools

BigQuery

Airflow

DBT

Metabase

Amplitude

Job description

Hi there!

About us

WeWard is the app that rewards you for walking and turns everyday steps into real-life rewards, connections, & positive impact!

Our mission is help people move more, feel better, and make movement meaningful.

Today, we are trusted by 25M+ users worldwide, with a fast-growing, international team and offices in Paris and New York.

Our ambition is to build the world’s leading movement-and-rewards platform, scaling globally while using technology, data, and smart incentives to drive lasting behavior change and wellbeing at scale.

About the role

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 and AI transition.

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 lead a team of 5+ people, and position WeWard as a data-first company.

You will also play a central role in exploring and integrating AI across all departments and within the product itself. Your role will involve leading the company’s transition to effectively utilize AI in both its products (personalization, automation, fraud prevention) and its operations (support, growth, finance).

At the heart of strategic decisions, you will directly shape initiatives around revenue optimization, personalization, fraud detection, LTV projection, A/B testing, and AI-driven projects.

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.

Your impact/responsibilities:

As a Head of Data at WeWard, you will:

• 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).

• Put AI at the heart of the product and team processes, by developing AI-powered features, automation, and internal agents to accelerate impact and unlock new user experiences.

Our commitments

• SUCCEED — You’ll join a team of passionate people who share values of ambition and determination

• TRUST — We give you real autonomy, trusting you to reach your goals in your own way

• EXPLORE — You’ll grow in a culture that’s constantly evolving and curious about what’s next

• PROGRESS — We’ll support you through challenges, learn from mistakes, and move forward together

• SMILE — And every day, you’ll be part of a fun and positive environment where humor is always welcome

Preferred experience

What we’re looking for

You’re the perfect match if you have…

• 10+ years of experience in data, including at least 5 years in management.

• A 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).

What we offer

• A global, mission-driven team with teammates in Paris, NY, London, Boston!

• A healthy work/life balance (we walk the talk)

• Annual learning & dev budget (you grow, we grow)

• Hybrid work, with 2 days of remote work per week

• (Really, really) Cool office in central Paris with snacks, a walking desk and a huge Wardy hanging around

Recruitment process

1. 45-min technical chat with Tanguy, our Co-founder and your future manager — to dive into the role and missions.

2. At-home case study followed by a 1.5 hour debrief with the Data team, including time for mutual feedback.

3. 30-min call with Kaënaath, our Talent Acquisition Specialist — to discuss your background, and expectations

4. Office tour to meet other team members.

And if it’s a match… Welcome to the adventure!