Lead Data Engineer
WeWardAbout the role:
At WeWard, we reward walking 🚶♀️ — already trusted by 25M users worldwide. Our mission is to help people move more, feel better, and earn real-life rewards. Simple, meaningful, and built with purpose.
To scale our data foundations and support hyper-growth, we’re looking for a Lead Data Engineer to join our Paris office. You’ll be working closely with Tanguy (co-founder, Chief Data Officer) and Kevin (Data Scientist, PhD in Data). You will manage Marie (Analytics Engineer) and grow the team further by recruiting a Data Engineer.
This is a unique opportunity to join a fast-growing startup where you’ll be the owner of a reliable, accurate and scalable data platform. Your work will empower all teams — from Product to Growth to Operations — with trustworthy insights that directly support WeWard’s business and international expansion.
Responsibilities
Data Platform Ownership
We built our data platform a year ago to centralize all data needs and empower every team at WeWard. Today, several terabytes of data are ingested, transformed, and made available to the business. But there’s still a lot to build, optimize, and maintain — and we need strong experience to take this project to the next level.
Own WeWard’s data platform end-to-end, ensuring reliability, scalability, and accuracy across all pipelines (ETL/ELT).
Design, develop, and maintain robust data pipelines while supervising the architecture of our Data Warehouse (BigQuery).
Continuously expand and improve the platform by integrating and centralizing data from multiple sources (app, partner APIs, external providers).
Implement monitoring, alerting, and cost-optimization strategies.
Ensure full compliance with GDPR and industry standards.
Business Intelligence
Business teams rely heavily on weekly KPI monitoring, but many of these metrics are not yet automated. Your role is to transform this into a seamless process.
Build dashboards tailored to each team’s needs, leveraging the data platform.
Support the recruitment of a dedicated profile for governance
Ensure visibility and accessibility of business-critical results via Metabase (or other BI tools).
Put the power of data at the service of every team, enabling smarter and faster decisions.
Acquisition & Growth Analytics
User acquisition is one of WeWard’s biggest growth levers, with significant investments and optimization needs. Data is central to this effort.
Ensure the reliability of event pipelines feeding acquisition algorithms.
Collaborate with the Data Scientist on projection models and UA optimization.
Provide visualization and decision-support tools to help guide marketing investments.
Our commitments:
You will be joining a team of enthusiasts who love to share and whose values include ambition and determination! SUCCEED 🏆
We give you real autonomy, trusting you to achieve the expected results by organizing yourself as you see fit. TRUST 🤝
You will grow in a constantly evolving company culture, always on the lookout for what’s new! We love to keep up with news and trends, discover new practices, expand our thinking, and explore new horizons. Your curiosity will be no fault here! EXPLORE ⛏️
We guarantee support in the face of obstacles. We look for solutions and think together about alternatives. If we’ve taken a wrong turn, we understand why and change course. Either way, we learn as we go. PROGRESS 📈
On a daily basis, you will be part of an inner life defined by its good mood, where everyone tries to accompany it with a touch of humor! SMILE 😁