Senior Frontend Engineer

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 30M+ users worldwide, with a fast-growing, international team and offices in Paris and New York. Our...

You will help build and operate Sesterce's sovereign AI infrastructure for production customers across Europe.What you will doOwn high-impact work across Sesterce OS product surfaces, fleet dashboards, customer workflows, and operational UX.Partner with engineering, infrastructure, operations, and customer teams.Improve reliability, delivery speed, and...

About us WeWard is the app that rewards you for walking and turns everyday steps into real-life rewards, connections, and 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...

Sesterce Group in Paris is looking for a candidate to help build and operate their sovereign AI infrastructure for production customers across Europe. The role involves owning high-impact work on product surfaces, dashboards, and workflows, while also collaborating effectively with various teams.Ideal candidates will have strong frontend engineering...

Join Proton and build a better internet where privacy is the default Proton was founded in 2014 by scientists from CERN on a simple truth: privacy is a fundamental human right. Since then, we’ve built the world’s largest encrypted email service (Proton Mail) and expanded into Proton VPN, Proton Drive, Proton Pass, and Proton Calendar—tools used by...

WeWard SAS is seeking a Senior Frontend Engineer (React Native) to join the Growth Squad in Paris. You will own onboarding and key in-app surfaces, drive experimentation, and ship high-quality mobile experiences for a global user base.You’ll collaborate with PMs, Designers, and leadership to push growth initiatives and improve retention and engagement. In...

Sorare, based in Paris, is hiring a Senior Frontend Engineer to craft high-traffic web experiences for our licensed digital sports cards. You will ship features using React and TypeScript, work with product, design and backend to drive metrics and roadmap, and optimize for performance across mobile and desktop.We value ownership, fast delivery, and clear...

Dust is seeking an experienced frontend engineer who feels comfortable working on backend tasks as needed. In this role, you will collaborate closely with our product designer team, contributing ideas to shape the user experience while implementing features in our React-based frontend.On the backend side, you’ll contribute to REST API work and...

Outsight is seeking an experienced frontend engineer to redefine how humans interact with live spatial tracking. You will translate real-time coordinates, semantic timelines, and AI agent feedback into accessible web applications and dashboards.Join an international team in Paris and contribute to responsive, multi-tenant interfaces that render streaming...