Back-end Python Developer H/F

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.

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.

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.

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.

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.

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.

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 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.

Join Gorgias as a Senior Front End Engineer, where you'll play a pivotal role in shaping the future of customer service technology. You will work closely with our product and design teams to create seamless user experiences that delight 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.

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.

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.

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.

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.

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 our dynamic team at Meritis as a C# Front Office Developer (H/F) in the vibrant city of Paris. We are looking for an innovative and tech-savvy developer who is passionate about creating impactful software solutions for our clients in the finance sector. In this role, you will be responsible for developing, enhancing, and maintaining our front office applications using C#. If you thrive in a collaborative environment and are eager to take on new challenges, we would love to hear from you!

Located in the vibrant heart of Paris, Winamax is revolutionizing the online gaming industry. As a leading platform for poker and sports betting in France, we boast a community of over 350,000 players and 600,000 monthly bettors. Our services extend to Spain, Germany, and soon to Italy and Portugal. We pride ourselves on delivering an exceptional experience that is technical, creative, and of high quality. Innovation, unity, and belonging are the core values that shape our unique and multicultural corporate culture.Are you ready to shape the future of gaming?Technically, Winamax offers:• A powerful and innovative gaming engine: dynamic game offer adjustments, highly configurable poker games, and fraud detection.• A distributed and scalable architecture designed for real-time processing of platform flows.• A modular platform adhering to high availability and data security constraints, capable of handling heavy traffic.ABOUT THE ROLEAs a member of the Poker team, you will play a key role in the design, implementation, and oversight of the microservices powering our poker platform.ROLE DESCRIPTION• Design of the platform architecture.• Development of highly available and scalable microservices.• Development of APIs and data models.• Writing unit and end-to-end tests, and running scenarios in real-world conditions.• Participating in team code reviews.• Deployment of applications on AWS.• Monitoring and optimization of the poker platform.• Documenting the architecture and poker services.• Collaborating with Front-End, Data, Infrastructure, Security teams, and project managers.Examples of projects include:• Creating a poker gateway with authentication, rate limiting, routing, and pub/sub (10K+ messages/second).• Implementing a registration microservice (1,000 registrations/second).PROFILE SOUGHTThe ideal candidate will possess the following qualities and skills:• Significant experience in developing Back-End services on high-traffic platforms (10K+ requests/second).• Proven experience with load balancing, high availability, scaling, caching, database, and storage challenges.• Proficiency in architectural best practices and microservices development.