Senior Frontend Engineer - Walking Motivations Pillar Fr H/F

Reporting to the Walking Motivations team, alongside , you'll work as a Senior Mobile Engineer on the pillar that puts the walk back at the heart of WeWard.

WeWard rewards walking - but rewards aren't the whole story. Our Walking Motivations Pillar exists to make walking itself feel good: more habitual, more meaningful, more fun. We build the features people open the app for before they ever think about the reward.

You'll face the challenge of operating a large-scale international consumer app handling billions of interactions and strong peaks of activity every day.

The Walking Motivations Pillar works on 3 core ambitions:

• Step uplift - a measurable increase in daily steps. We move the body, not just the metric.
• Lasting motivation - making walking a habit users come back to on their own.
• A wonderful experience - the kind of product moment that turns a user into a multi-year member.

Your impact/responsibilities

As a Senior Mobile Engineer inside the Walking Motivations Pillar, you will:

Ship and own

• Ship mobile features end-to-end on iOS and Android
• Lead new walking experiences - gamification, social hooks, habit-forming mechanics
• Shape our map and location-based experiences - places to go, routes to explore
• Leverage Widgets, Live Activities, Lockscreen and notifications to stay close to users

Drive technical excellence

• Optimise step tracking, battery, and background processing
• Contribute to pillar-level architecture with the CTO and Engineering Manager
• Spot fragile areas, debt, and sensor/permission risks early
• Reduce long-term debt without derailing the roadmap

Collaborate and mentor

• Frame trade-offs with Product and Design
• Guide pillar engineers on complex technical decisions

Our app is built with React Native and TypeScript, with native Android (Kotlin) and iOS (Swift) modules where it matters - step tracking, sensors, system integrations.

Our commitments

• SUCCEED - You'll join ateam of passionate peoplewho share values of ambition and determination
• TRUST -We give you realautonomy, 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 afun and positive environmentwhere humor is always welcome

You have 5+ years of experience as a Mobile Engineer, with strong proficiency in TypeScript and React Native, and hands-on experience shipping production apps at scale

• You have solid expertise in at least one native platform (Android/Kotlin or iOS/Swift), and you're comfortable diving into native modules when React Native isn't enough
• You're able to understand and debug large, complex codebases - and you enjoy it
• You can leverage AI and are eager to grow your skills with it
• You love combining continuous improvement and agility, always bringing new ideas to the table. At WeWard, our spirit is Test & Learn - we trust you to experiment (we deploy to production more than ten times a week!)
• You have a natural interest in the startup world and want to make a tangible impact in your next adventure
• You're motivated by contributing to the health and wellness sector - and you genuinely care about whether someone walks more because of what you built
• You're eager to evolve in an international environment - WeWard is now present in Spain, Italy, the US, Germany, the UK, and more!

Bonus

• Experience with mobile sensors, background tasks, or step/activity tracking
• Familiarity with mobile observability and monitoring tools (Sentry, Datadog, Firebase...)
• Passionate about clean, well-tested, and maintainable code. Takes ownership and pride in code quality.

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 Timeline

• A 30-min intro call with, our Talent Acquisition Specialist - to discuss your background, expectations, and introduce you to WeWard
• 30-min call withSurya, your future manager. Here you'll go in detail about the role's missions.
• At-home case study followed by a 1 hour debrief with 3 collaborators, including time for mutual feedback.
• Office tourto meet other team members.

And if it's a match...Welcome to the adventure!

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