Senior Front End Developer (h/f)

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 de…

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.

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.

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.

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.

Join CAPFI Technology - a Hub of IT and Financial ExpertiseCAPFI Technology, located in Paris and London, combines our expertise in IT and market finance. Our consultants collaborate with clients on strategic projects that integrate innovation, technology, and financial challenges. Your Responsibilities :As a .NET Developer / Software Engineer (H/F), you will be part of an agile team working with a financial market client on:Developing containerized full-stack applications and micro-services while adhering to Craftsman practices (TDD, BDD, DDD).Analyzing architecture to identify improvements.Designing and developing .NET applications.Implementing continuous integration via automated tests (Jenkins, GitLab, Bitbucket, etc.) and continuous deployment (Ansible, AWX, Octopus, GitLab, etc.).Managing versions (Git, TFS).Creating test plans and participating in tests not covered by unit tests. Your Strengths :A passion for thriving in a demanding and enriching environment.A desire to challenge yourself in client missions.Curiosity, passion, and a collaborative spirit.A strong interest in management and a willingness to mentor peers.Solid technical or functional skills in market finance.A degree from an engineering school or equivalent, with at least three years of experience in IT. What We Offer You:CAPFI is a vibrant company that places collective spirit and peer sharing at the heart of its culture. We provide a flexible work environment with agile project choices. CAPFI also offers:Freedom to choose your manager.Opportunities for certified training.The chance to join Tribes and foster the collective energy and expertise of CAPFI.

Join our dynamic team at iliad as an End-to-End Network Performance Analyst in the vibrant city of Paris! In this pivotal role, you will monitor, analyze, and enhance the performance of our network systems to ensure optimal efficiency and reliability. Your expertise will drive improvements and support our mission to deliver exceptional service to our customers.

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.

Join our dynamic technical team of around thirty professionals in a warm and fun work environment! You have the freedom to choose your preferred workstation setup, allowing you to work in the way that suits you best.Your day-to-day will involve tackling a diverse range of challenges, including API development, implementing new features, creating proofs of concept (POCs), and managing application maintenance (TMA).Our technology stack includes:NodeJs & ExpressJS;AngularJs, VueJs;MongoDB, Postgres;Kubernetes & Docker;AWS;

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.

Join Back Market as a Backend Engineer Apprentice and embark on a journey to innovate and enhance the circular economy through technology. As a part of our dynamic team, you will gain hands-on experience in backend development, contributing to our mission of creating a more sustainable world.

Join our dynamic team at Meritis as a Business Analyst focusing on Middle and Back Office operations. In this pivotal role, you will analyze business processes, identify areas for improvement, and implement solutions that enhance operational efficiency. Your analytical skills will be vital in bridging the gap between IT and business stakeholders, ensuring that our systems meet the unique needs of our finance operations.As a Business Analyst, you will engage with cross-functional teams, gather requirements, and assist in the design and implementation of new processes and technologies. Your contributions will directly influence our strategic initiatives and drive our company’s success.

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.

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).

Join the innovative team at Back Market as a Staff Data Analyst specializing in Care Analytics. In this pivotal role, you will leverage data to drive insights and enable strategic decision-making, contributing to our mission of promoting sustainable consumption through refurbished electronics. You will collaborate with cross-functional teams to analyze trends, enhance our data capabilities, and support our commitment to exceptional customer experiences.

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.

Join the prestigious Groupe Gardinier as an Autonomous Sous Chef in our high-end corporate restaurant located in the heart of Paris. We are seeking a talented culinary professional who is passionate about creating exceptional dining experiences. In this role, you will work closely with the head chef to design innovative menus, prepare gourmet dishes, and ensure the highest standards of kitchen operations.If you thrive in a fast-paced environment and have a keen eye for detail, we want to hear from you!

Join our prestigious team as the Assistant Director of a high-end restaurant located in the heart of Paris. We are seeking a dynamic and passionate individual who thrives in a fast-paced environment and is eager to deliver exceptional service. This role demands fluency in both English and French, reflecting our commitment to providing a culturally rich dining experience.

Join Back Market as a Senior Data Scientist in our AI Core team, where you will play a crucial role in shaping the future of technology in the refurbished electronics market. In this position, you will leverage your expertise in data science to develop innovative AI solutions that enhance our platform's capabilities and improve user experience.Your responsibilities will include analyzing complex datasets, building predictive models, and collaborating with cross-functional teams to drive data-driven decision-making. You will also have the opportunity to mentor junior data scientists and contribute to the overall growth of our data science capabilities.

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.