Emplois de senior frontend engineer – Paris

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...

Outsight’s software solutions track the motion of people and vehicles using 3D LiDAR data. Operators of transportation hubs like airports and train stations but also sport venues, road infrastructures and industrial sites can now access accurate and anonymous Spatial Intelligence data, in order to improve operations and increase user safety and...

Morpho is a leading Decentralized Finance (DeFi) lending protocol that recently secured funding from Ribbit Capital, a16z crypto, Coinbase Ventures, Variant, Brevan Howard, Pantera, Blocktower, and 50 others to support its mission of revolutionizing lending with an open, efficient, and resilient platform. Morpho is experiencing explosive growth, with over $9...

We are bsport. The place to be! bsport is an all-in-one platform combining boutique fitness and advanced technology. Our platform helps partners manage their bookings, payroll, marketing and more, to streamline operations and boost their commercial success. Since we launched in 2019, we've achieved remarkable growth: Built a community of over 10 million...

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...

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...

MYM is seeking a Front-end Developer to enhance their platform, ensuring a seamless experience for 19M users globally. You will work with a modern tech stack including React 18 and TypeScript, and be responsible for both maintaining legacy systems and delivering new features. The role promotes a collaborative environment with a strong emphasis on quality,...

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...

A fintech startup in Paris is seeking a highly skilled Senior Frontend Developer to join their tech team. In this role, you'll develop and maintain critical features for a multi-asset investment platform, working with cutting-edge technologies like TypeScript, React, and GraphQL. The ideal candidate has over 5 years of experience and a knack for handling...

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...

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...

Sorare is looking for a Senior Frontend Engineer in Paris to help build official licensed digital sports cards that connect millions of fans weekly. You will craft delightful web experiences and work closely with product, design, and backend teams to ship features that scale.You’ll own performance, mobile experience, and maintainability while collaborating...

Wecasa recherche un Frontend Developer (H/F/NB) en CDI pour concevoir et piloter des interfaces web et mobiles performantes. Vous travaillerez en équipe sur React, React Native et Next.js, dans un environnement hybride à Paris.Le poste demande 5 à 7 ans d’expérience frontend, une excellente maîtrise React, TypeScript et UI/UX, avec livraison en...

Deezer is seeking a Senior Front End to lead architectural improvements and deliver scalable web apps using TypeScript, React and a component-driven design system. You will collaborate with CRM & Ad teams to support Deezer’s engagement strategy while maintaining high performance and security.The role is based in Paris with a hybrid policy (10 days per...

A next-generation defense firm in Paris is seeking a skilled Front-End Engineer to build the Human-Machine Interface for their tactical Command and Control system. This role involves developing interactive maps and real-time video streams, ensuring high-performance benchmarks, and collaborating with cross-functional teams. Candidates should have a deep...

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...

A leading fitness technology platform is seeking a Senior Frontend Engineer to lead complex initiatives and contribute to the platform's evolution. The ideal candidate has over 5 years of frontend experience in SaaS environments and possesses strong problem-solving skills. You'll work with ReactJS and TypeScript in a fast-growing team, with a compensation...

Tsuga, Inc is seeking a frontend engineer to join a Paris-based web team of 6 engineers. You will tackle complex data-driven visualizations, performance optimization, and fast UI development with TypeScript and React. The role emphasizes pragmatic production code and strong ownership.We value candidates with 5+ years of frontend experience and a track record...

Une entreprise Tech à Paris recrute un Développeur React.JS pour intégrer de nouveaux projets et optimiser les fonctionnalités existantes. Ce poste offre une rémunération annuelle de 48 000 € à 55 000 €, avec 3 jours de télétravail par semaine. Vous serez impliqué dans la conception d'applications en vous basant sur les meilleures pratiques....

RequirementsYou have 7+ years of experience in software engineering with a strong focus on large-scale frontend architecture,You have a proven track record of decoupling monolithic applications or building plugin architectures,You are proficient in React and TypeScript, and you possess deep knowledge of bundlers (Vite preferred), the TanStack ecosystem...