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Nexton

Full-time|On-site|Paris

Join our dynamic team at Nexton as a Front-End React Developer! We are seeking a skilled developer who is passionate about creating exceptional user experiences and utilizing modern web technologies. You will be responsible for designing and implementing user interfaces using React, collaborating with cross-functional teams to deliver high-quality solutions.

Apr 2, 2026

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Senior React Front-End Developer at Valtech | Paris

Valtech

Full-time|On-site|Paris

Senior React Front-End Developer (All Genders) Why choose Valtech? We are the innovation leader in experience, a trusted partner to the world's most recognized brands. For our team members, we provide opportunities for growth, a culture grounded in values, international career prospects, and the chance to shape the future of customer experience. Opportunity At Valtech, you will find an environment conducive to continuous learning, tangible impact, and professional growth. Whether you're developing new digital solutions, challenging conventional wisdom, or crafting the next generation of customer experiences, your contributions will help transform industries. We take pride in: Our work and the innovation we foster Our values: 'Share, Dare, Care' A corporate culture that promotes creativity, diversity, and autonomy Our borderless global structure that facilitates seamless collaboration Role As a Senior React Front-End Developer (All Genders), you are passionate about innovation in experience and constantly seek to push the boundaries of what is possible. You bring 8 to 12 years of experience, a strong commitment to personal development, and a desire to make a lasting impact. You will join a multicultural, international, and multidisciplinary team dedicated to advancing the frontiers of technology and design.

Mar 17, 2026

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Front End Developer (H/F)

myjobcompany1

Full-time|On-site|Paris

Join our innovative team at myjobcompany1 as a Front End Developer (H/F) where your skills will contribute to building dynamic and responsive web applications. We are looking for a passionate individual who thrives in a fast-paced environment and is eager to embrace new challenges.

Mar 8, 2016

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Lead Front-End Developer (H/F)

nexton

Full-time|On-site|Paris

Are you an experienced Front-End Developer looking to lead innovative projects in a dynamic environment? Join nexton as a Lead Front-End Developer (H/F) in the heart of Paris. In this role, you will spearhead the development of cutting-edge web applications, collaborating closely with cross-functional teams to create exceptional user experiences.

Apr 3, 2026

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Senior Front End Developer (h/f)

myjobcompany1

Full-time|On-site|Paris

We are seeking a highly skilled Senior Front End Developer (h/f) to join our innovative team at myjobcompany1 in Paris. In this role, you will work on exciting projects, utilizing your expertise in modern front-end technologies to create engaging and user-friendly web applications.Your responsibilities will include collaborating with designers and backend developers, ensuring the technical feasibility of UI/UX designs, and optimizing applications for maximum speed and scalability. You will also have the opportunity to mentor junior developers and contribute to the overall growth of the team.

Mar 8, 2016

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Front-End Engineer (React) at Blockchain | Paris

Blockchain.com

Full-time|On-site|Paris

Blockchain.com is at the forefront of revolutionizing the financial landscape through cryptocurrency. As the leading and fastest-growing global crypto company, we empower millions of individuals around the globe to access cryptocurrency securely. Since our inception in 2011, we have gained the trust of over 90 million wallet holders and more than 40 million verified users, facilitating over $1 trillion in crypto transactions.We are on the hunt for a talented Front-End Engineer with a passion for crypto and Web3 technologies to join our dynamic engineering team. In this role, you will work on developing innovative Blockchain applications that are among the most popular in the crypto ecosystem. Your contributions will shape user interfaces that power future wallets, block explorers, financial and market data products, along with cutting-edge visualizations.Our engineering teams engage in all phases of the product life cycle, encompassing idea generation, design, prototyping, planning, execution, and deployment.

Jan 29, 2026

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Senior Front-End Engineer (React) at nabla | Paris

nabla

Full-time|On-site|Paris office

nabla is looking for a Senior Front-End Engineer with deep experience in React to join the Paris office. This position centers on building web applications that are both dynamic and user-friendly, with a strong focus on delivering a polished user experience. Role overview Work closely with colleagues across disciplines to design, develop, and refine the front-end architecture. The goal is to ensure applications remain fast, responsive, and reliable. Day-to-day, expect to collaborate with product and design teams to translate ideas into seamless interfaces. What you will do Develop and optimize React-based web applications for performance and usability Work with cross-functional teams to implement new features and improvements Guide junior developers and help set coding standards, testing procedures, and deployment practices Impact This role shapes the quality of nabla’s products and directly influences customer satisfaction. Senior engineers here play a key part in mentoring others and establishing best practices across the front-end team.

Apr 29, 2026

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Lead Front-End Developer H/F

meilleurtaux

Full-time|On-site|Paris

About the Role meilleurtaux is looking for a Lead Front-End Developer to guide the front-end team in Paris. This position focuses on building and improving user interfaces and shaping the company’s digital presence through modern frameworks and development practices. What You Will Do Lead and mentor front-end developers, supporting their technical growth Work closely with cross-functional teams to deliver high-quality products Contribute to strategic planning for front-end projects Promote best practices in front-end development Drive improvements to user experience across digital platforms Location This role is based in Paris.

Apr 17, 2026

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Lead Front-End Developer

myjobcompany1

Full-time|On-site|Paris

Join our dynamic team at myjobcompany1 as a Lead Front-End Developer. In this pivotal role, you will innovate and enhance our web applications, ensuring a seamless user experience. Collaborate with designers and back-end developers to create responsive, user-friendly interfaces that captivate our audience.

Apr 15, 2016

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Senior Front-End Engineer (H/F)

myjobcompany1

Full-time|On-site|Paris

Join our dynamic team at myjobcompany1 as a Senior Front-End Engineer (H/F)! In this role, you will play a crucial part in developing cutting-edge web applications that provide an outstanding user experience. You will collaborate closely with designers and backend developers to create seamless and responsive user interfaces. We are looking for innovative thinkers who are passionate about technology and eager to contribute to exciting projects.

Mar 31, 2016

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Senior Front-End Developer - Poker Team (H/F)

Winamax

Full-time|On-site|Paris

Located in the heart of Paris, we are transforming the online gaming industry. As the leader in poker and sports betting in France, with 350,000 players and 600,000 monthly bettors, we are expanding our presence in Spain, Germany, and soon in Italy and Portugal. We provide our players with an exceptional experience that is technical, creative, and qualitative. Innovation, unity, and belonging are the values that shape our multicultural and unique corporate culture.Are you ready to shape the future of gaming?Technically, Winamax offers:• A powerful and innovative gaming engine: dynamic adaptation of gaming offers, highly configurable poker games, fraud detection.• A distributed and scalable architecture designed to process real-time platform streams.• A modular platform subject to high availability and data security constraints, capable of handling large audiences.ABOUT THE POSITIONAs part of our Tech team, you will play an active role in developing the next generation of Winamax applications (desktop and mobile) and improving our cross-platform engine.This position is attached to the Poker Client team, which manages the development of poker game clients (iOS, Android, Windows, Mac, Linux, Web) as well as the distribution of Winamax applications on App Stores.As a Senior Front-End Developer, you will be responsible for:• Developing innovative features loved by thousands of players.• Producing robust code for real-time gambling applications (poker, sports betting).• Participating in strategic and cross-functional projects involving multidisciplinary teams.Depending on your profile, experience, and willingness, you may also help upskill junior team members.

Jun 20, 2023

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Front-End Developer (JavaScript & Angular) - h/f

myjobcompany1

Full-time|On-site|Paris

Join our dynamic team as a Front-End Developer specializing in JavaScript and Angular. In this role, you will leverage your expertise to create engaging and responsive web applications, enhancing the user experience and driving innovation within our projects.You will collaborate with cross-functional teams to define, design, and ship new features, and be part of a vibrant development culture focused on continuous improvement and agile methodologies.

Mar 31, 2016

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Consultant SRE Mobile / Front-End (H/F)

citech

Full-time|On-site|Paris

citech is seeking a Consultant SRE with a focus on Mobile and Front-End technologies to join the team in Paris. This position is dedicated to enhancing the reliability and performance of user-facing applications. The role involves close collaboration with both technical and product teams, aiming to support the quality and stability of mobile and front-end projects. Key Responsibilities Collaborate with cross-functional teams to improve the reliability and performance of mobile and front-end systems. Implement Site Reliability Engineering (SRE) principles to ensure smooth and dependable user experiences. Promote and help maintain operational best practices within ongoing projects. Participate in technical discussions and contribute insights to foster continuous improvement. Location This role is based in Paris.

Apr 21, 2026

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Senior Front-end Engineer - Platform

Ledger

Full-time|On-site|Paris, France

About LedgerAt Ledger, we are a team of innovators dedicated to redefining digital ownership. Our mission is to empower individuals and enterprises alike through secure management of their assets, ensuring that technology is accessible for everyone. We envision a future where users, creators, and businesses have full control over their value. Driven by curiosity and a commitment to continuous improvement, we seek to inspire global change and support our team in challenging the status quo to develop cutting-edge solutions. Join us in making self-custody not only attainable but also a fundamental right.With our headquarters in Paris and a presence in several global cities including London, Geneva, and Singapore, Ledger stands as the leading platform for digital assets and Web3. We proudly secure over 20% of the world's crypto assets through our innovative Ledger devices, with more than 7.5 million units sold across 200 countries.The Team:Ledger Wallet serves as our flagship application, built on an Open Source monorepo utilizing React, Electron (Desktop), and React Native (Mobile). It supports various blockchains and integrates multiple decentralized applications (DApps).As part of the Platform Team, you will be integral to laying the groundwork for Ledger Wallet. Our focus extends beyond feature development; we construct the infrastructure that empowers other teams to deliver enhancements swiftly and securely.We are in search of a Senior Engineer to take ownership of our tech stack, refine our monorepo architecture, and facilitate the transition to micro-frontends. Your primary audience will be fellow developers, as you prioritize tooling, build speed, and overall Developer Experience (DX).

Feb 4, 2026

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Front-End Consultant Intern - Media (SEA-SMA) (H-F)

Labelium

Internship|On-site|Paris

Join Labelium as a Front-End Consultant Intern in the Media department, where you will play a crucial role in enhancing our digital marketing strategies. This internship provides an excellent opportunity for hands-on experience in front-end development and media strategy implementation. You will work closely with experienced professionals to gain insights into the advertising technology landscape and contribute to innovative projects.

Nov 26, 2025

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C2 Front-End Engineer at Harmattan AI | Paris

Harmattan AI

Full-time|On-site|Paris

About UsAt Harmattan AI, we are pioneering the creation of autonomous and scalable defense systems that cater to the needs of modern warfare. Following a successful $200M Series B funding round, our valuation has surged to $1.4 billion, prompting an expansion of our talented teams to deliver mission-critical solutions for allied forces.Our mission is driven by core values: developing technologies that create a tangible impact, striving for excellence in our pursuits, setting ambitious objectives, and tackling challenging technical hurdles. We thrive in a demanding environment where rigor, ownership, and execution are paramount.About the RoleWe are in search of a talented Front-End Engineer to become a vital member of our C2 Core team based in Paris. This role involves crafting the operator's interface for our tactical Command and Control (C2) system, focusing on the Human-Machine Interface (HMI) that connects operators with the battlefield.The context you'll be working in emphasizes the significance of managing cognitive load alongside software performance. The user interface you design will be operational on tactical PCs in the field, demanding real-time updates for the Common Operational Picture (COP), the ability to render multiple live video streams, and an intuitive interface for mission planning and fleet command.Key ResponsibilitiesCOP Visualization: Develop interactive maps and 2D/3D geospatial overlays to visualize real-time robot telemetry, sensor data, and mission routes.Real-Time Video Grid: Build a low-latency, robust video player interface capable of managing multiple streams without freezing the main UI thread.Mission Planning & Command: Create interactive tools enabling operators to establish waypoints, configure mission parameters, and issue real-time commands to the fleet.Performance Architecture: Design a state management system that can efficiently handle high-frequency data from the backend bus while preventing UI jitter or memory leaks.Collaborative Development: Collaborate closely with UX/UI designers, backend engineers, and mission planning algorithm developers to streamline workflows and minimize the number of clicks for operators.Optimization: Ensure the UI meets strict performance benchmarks, including consistent 60fps rendering, even during high-frequency map updates.

Mar 2, 2026

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Fullstack Java / React Developer (H/F)

Alten

Full-time|On-site|Paris

Join our dynamic team at Alten as a Fullstack Java / React Developer (H/F). We are looking for passionate developers who thrive in innovative environments and are eager to work on exciting projects that push the boundaries of technology.

Mar 18, 2026

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Scala Back End Developer (H/F)

nexton

Full-time|On-site|Paris

Join our innovative team at nexton as a Back End Developer specializing in Scala. In this role, you will play a crucial part in designing and implementing robust backend systems that support our applications in the Telco, Media, and Transport sectors. You will collaborate with cross-functional teams to deliver scalable solutions and enhance system performance.

Apr 7, 2026

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Java / React Developer H/F

nexton

Full-time|On-site|Paris

Join nexton, a leading company in the Telco Media Transport sector, as a skilled Java / React Developer. In this role, you will leverage your expertise to develop and maintain robust applications, collaborate with cross-functional teams, and contribute to innovative solutions that enhance user experiences.

Apr 3, 2026

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Fullstack Java / React Developer H/F

nexton

Full-time|On-site|Paris

nexton is looking for a Fullstack Java / React Developer based in Paris. This position centers on developing and refining applications using both Java and React. Collaboration with colleagues from various teams is a key part of the job, with a focus on creating user-friendly interfaces and enhancing the overall user experience. What you will do Design and build applications with Java and React Work alongside cross-functional teams to develop interfaces Offer ideas to improve usability and boost user satisfaction Requirements Experience with backend development in Java and frontend work in React Interest in tackling complex problems with creative solutions Ability to thrive in a collaborative and evolving environment

Apr 23, 2026

Senior Front End Developer (h/f)

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