Senior Fullstack Developer NodeJS - Flexible Work Options

In the context of streamlining our development processes, we are seeking a Senior Fullstack Developer (H/F).EnvironmentYou will join a close-knit technical team of about thirty individuals in a very warm and fun work atmosphere. You have the flexibility to choose the workspace setup that suits you best: it’s entirely up to you how you want to work!Required S…

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.

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.

Nous recherchons un Infirmier en santé au travail (F/H) passionné par le bien-être des employés et la prévention des risques professionnels. Dans ce rôle, vous serez responsable d'assurer une bonne santé physique et mentale au travail, en fournissant des conseils, des évaluations et des interventions appropriées.Vous travaillerez en étroite collaboration avec les équipes RH pour développer et mettre en œuvre des programmes de santé au travail, tout en participant à des initiatives de sensibilisation et de formation. Ce poste est idéal pour un professionnel soucieux d'améliorer la qualité de vie au travail et de promouvoir un environnement de travail sain.

Join our innovative team at Free2Move as a Lead Senior Fullstack Developer (H/F) to drive the industrialization of our development processes.EnvironmentYou will become an integral part of a dynamic technical team comprising around thirty talented individuals in a warm and enjoyable work atmosphere. You have the flexibility to choose your working setup: it's entirely up to you how you wish to work!Required SkillsNode.jsExpress.jsAWSAngular.js, Vue.jsMongoDB, PostgreSQLKubernetesDocker

Role Overview Accor S.A. is hiring a Senior Java Backend Developer for its Paris office. This position focuses on building and maintaining backend systems that support hospitality services worldwide. What You Will Do Design, implement, and maintain backend solutions using Java. Work closely with team members to deliver systems that improve both internal operations and guest experiences. Contribute technical expertise to projects that drive service quality and efficiency. Impact Your work will shape the reliability and performance of core systems at Accor, directly supporting the way guests experience our services.

Are you tired of managing legacy code? Do you dream of starting from a clean slate on a European scale? We are currently supporting a major B2C player in the complete overhaul of its European IT system. The challenge?Build an ecosystem of application 'satellites' for France.100% GreenfieldNo technical debt at the start We are looking for Java engineers passionate about Software Craftsmanship to strengthen an elite tech team. Your RoleYou will work at the heart of the backend on a modern, distributed, event-driven architecture. Your Missions: Design and develop microservices using Java / Spring Boot Participate in building an event-driven architecture Contribute to technical choices and best practices (clean code, TDD…) Work closely with DevOps and product teams Be an advocate for a culture of 'You build it, you run it'

Located in the bustling heart of Paris, Winamax is revolutionizing the online gaming industry. As the leading poker and sports betting platform in France, we boast a community of 350,000 players and 600,000 bettors each month. Our presence extends to Spain, Germany, and soon, Italy and Portugal. We are committed to providing our players with an extraordinary experience that is technical, creative, and 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?From a technical perspective, Winamax offers:• A powerful and innovative gaming engine: dynamic game offering adaptation, highly configurable poker games, and fraud detection.• A distributed and scalable architecture designed for real-time processing of platform flows.• A modular platform that meets high availability and data security requirements, capable of managing heavy traffic.ABOUT THE POSITIONTo support Winamax’s growth and the increasing number of design projects, we are looking for a Fullstack Developer with a strong Back-End focus (Node, React).As part of the Operator team, you will design and develop applications for managing our online gaming operations, specifically within the payment vertical.Your responsibilities will include:• Integrating new partners and payment methods.• Maintaining and evolving existing code to ensure compliance with regulations (including PCI DSS standards).• Harmonizing and optimizing historical code for improved maintainability and performance.• Developing internal tools for the fraud prevention and customer support teams.Our preferred environment, ideally yours as well:• NodeJS, React, PHP• Object-oriented programming / TDD / DDD• MySQL, Relational model, stored procedures, triggers, integrity constraints

Theodo: A Journey of Innovation and SuccessSince 2009, Theodo has been a driving force in supporting innovative businesses with the design, development, and deployment of cutting-edge digital products. We leverage the best of technology combined with Lean methodologies.With 15 years of exceptional growth, Theodo's team of over 700 dedicated professionals, primarily Software Engineers, are passionate about technology and continuous improvement. As we expand, we have structured our expertise into specialized entities focusing on different technologies (Theodo Apps, Theodo Cloud, Theodo Data & AI) and industries (Fintech, Govtech, Healthtech, Consumer Goods). By 2025, Theodo is projected to achieve a revenue of €100M.At Theodo GovTech, we partner with our clients—government ministries, local authorities, and major public operators—to design, develop, and maintain accessible, sustainable, and socially beneficial digital products.Joining our adventure means sharing a common ambition: to harness digital solutions to enhance public action efficiency and improve the daily lives of both agents and users.Why Are We Hiring?We aim to showcase Theodo's expertise in the public sector by becoming the go-to partner for administrations to implement their public policies digitally and swiftly.We are in search of a Software Engineer at Theodo GovTech to ensure public actors' satisfaction by creating products that meet the needs for improving the quality of public service provided to citizens, associations, and businesses.Your Key Responsibilities:- Produce high-quality code that is defect-free, utilizing practices such as code reviews and pair programming, with a strong affinity for Agile development (particularly Scrum).- Address issues encountered and continuously improve your working methods (Daily, Problem solving, Retrospective).- Take ownership of quality at the ticket level, including writing automated tests.- Find smart and pragmatic solutions to simplify the product and lead the design of multiple user stories.Career Advancement Opportunities

Join Theodo and Shape the Future of Public Digital ServicesSince 2009, Theodo has successfully partnered with innovative businesses to design, develop, and deploy ingenious digital products by harnessing cutting-edge technology and Lean methodologies.With exceptional growth over the past 15 years, Theodo now boasts a dynamic team of over 700 passionate Software Engineers dedicated to continuous improvement. Our organization has evolved into specialized entities focusing on technology (Theodo Apps, Theodo Cloud, Theodo Data & AI) and industry sectors (Fintech, Govtech, Healthtech, Consumer Products). By 2025, Theodo is projected to achieve €100M in revenue.At Theodo GovTech, we work alongside our clients—including ministries, local authorities, and major public operators—to create, develop, and maintain sustainable, accessible, and beneficial digital products for society. Joining our mission means sharing a common ambition: leveraging technology to enhance public action efficiency and improve the daily lives of agents and citizens alike.Why Are We Hiring?We are seeking a Lead Developer at Theodo GovTech to ensure public stakeholders' satisfaction through the creation of products that enhance the quality of public services delivered to citizens, associations, and enterprises.Your Responsibilities Will Be Divided Into Three Areas:- Ensure Project Delivery and QualityEngage in the most complex designs and features, ensuring that these can be implemented effectively by the development teams. Guarantee the quality of the architecture and the code produced through Theodo's methodologies (3S) and routines (code reviews).- Serve as the Client's Main ContactMaintain continuous client satisfaction by participating in regular meetings (backlog refinement, daily stand-ups, and ceremonies).- Oversee Software Engineer Success on the ProjectMentor your team through routines like code reviews and pair programming. Conduct one-on-one sessions with each team member to provide on-the-ground support.Your Growth OpportunitiesThree pathways for growth are available...

Your Impact At Doctolib, we are rapidly expanding our team and currently seeking talented Fullstack Software Engineers to join us in Paris. We welcome engineers at various stages of their careers, whether you are just starting out or have years of experience under your belt. There’s a place for you in our innovative Engineering teams! Your mission is to help Doctolib solidify its standing as a premier healthcare technology platform by creating high-quality products that enhance the daily routines of healthcare professionals and patients. You will engage in feature teams that develop solutions with a direct impact on millions across Europe. Joining the tech team at Doctolib means you will be at the forefront of building cutting-edge products and functionalities that improve the lives of care teams and patients alike. What You’ll Build Your responsibilities will encompass, but are not limited to: Collaborating with product managers, designers, and fellow engineers to create features that provide real value to healthcare professionals and patients. Designing and implementing technical solutions that ensure optimal performance, security, and usability across our fullstack applications (React, TypeScript, JVM ecosystem). Contributing to code quality through thorough reviews, testing, and the continuous improvement of our development practices. Sharing your expertise and collaborating across teams to advance Doctolib’s architecture and technical standards. Life at Doctolib Tech Our solutions are built on a single fully cloud-native platform that supports web and mobile application interfaces, multiple languages, and is tailored to meet the requirements of various countries and healthcare specialties. Our technology stack includes Rails, TypeScript, Java, Python, Kotlin, Swift, and React Native. We ethically leverage AI across our products to empower both patients and health professionals. Learn more about our AI vision here. Interested in understanding more about our tech culture and environment? Visit the Doctolib Tech site. What You’ll Bring Before proceeding, if you feel that this job description resonates with your skill set even if you don’t meet every criterion, we encourage you to apply! You possess fullstack software engineering experience with React and the JVM ecosystem (Java, Kotlin, Spring Boot) - Ruby experience is a bonus. You have a user-first mindset and are dedicated to enhancing the user experience.

About Air Apps Air Apps is a family-founded company focused on developing the world's first AI-powered Personal & Entrepreneurial Resource Planner (PRP). Since our start in 2018 in Lisbon, we have grown to operate in both Lisbon and San Francisco. Our apps have reached over 100 million downloads worldwide, all while remaining self-funded. We challenge standard approaches and aim to build AI-driven solutions that make a difference for people everywhere. Creativity and long-term thinking guide our work as we build products that empower individuals globally. React Engineer , Paris (On-site) We are building our talent pool for a future opening for a React Engineer in Paris. This role focuses on creating responsive, accessible user interfaces for our web applications. The position is fully onsite at our Paris office, where close collaboration with designers, product managers, and backend engineers is part of daily work. We are open to supporting relocation for the right candidate. What You Will Do Build and maintain user interfaces using React for our web products Translate wireframes and prototypes into stable, scalable front-end experiences Work closely with cross-functional teams to deliver seamless user experiences Next Steps This listing is to connect with talented engineers as we prepare to post the official position. We will reach out once the job is formally open.

Join our innovative team at jobsforhumanity as a Mid/Senior Fullstack Engineer. In this role, you will be responsible for developing and maintaining robust web applications that deliver exceptional user experiences. Your expertise in both front-end and back-end technologies will play a crucial role in the success of our projects.

Located in the vibrant heart of Paris, Winamax is at the forefront of the online gaming industry. As a leader in poker and sports betting in France, we boast a community of 350,000 players and 600,000 monthly bettors. Our presence extends to Spain, Germany, and soon to Italy and Portugal. We are dedicated to providing our players with an exceptional experience that is technical, creative, and high-quality. Our core values of innovation, unity, and belonging foster a unique multicultural corporate culture.Imagine building your future in gaming!Technically, Winamax is:• A powerful and innovative gaming engine: dynamic adaptation of game offerings, highly configurable poker games, fraud detection.• A distributed and scalable architecture designed to handle real-time platform streams.• A modular platform that meets high availability and data security requirements, capable of managing significant traffic.ABOUT THE ROLEAs a member of our Tech team, you will play an active role in the development of the next generation of Winamax applications (desktop and mobile) and enhancing our cross-platform engine.This position is part of the Casino team responsible for developing Casino game clients (iOS, Android, Windows, Mac, Linux, Web).As a Senior Full-Stack Developer, you will be instrumental in designing, developing, and deploying our applications. Your responsibilities will include:• Developing innovative and scalable features for both front-end and back-end.• Producing robust code for real-time gambling applications.• Managing end-to-end processes: specifications, development, testing, and deployment.• Continuously improving software architecture and development best practices.

Who are we?At MARGO, our consultants engage in what truly matters: complex projects that combine intellectual challenges with tangible business impacts. We support leading players in finance, industry, and technology in designing and developing high-performance software solutions, including distributed architectures, cloud platforms, real-time systems, and large-scale critical applications.Why join the Software Engineering practice?You will be part of a team led by Paul Blois, our Practice Manager for the past 5 years. Working alongside them means gaining deep insights into the company, receiving close guidance in your career development, and contributing to demanding IT projects that have a significant impact for our clients.Your responsibilities- Design, develop, and optimize a Front Office risk management application covering various financial products.- Enhance and extend existing functionalities to meet real-time business requirements.- Tackle complex performance, algorithmic, and multithreading challenges.- Participate in the design of scalable and robust microservices architectures.- Ensure code quality, maintainability, and security across the solution.- Contribute to code reviews, continuous improvement, and sharing best practices.Languages: Java 17Associated Technologies: NoSQL, microservices, CI/CDChallenges: real-time, low latency, algorithmic complexity, distributed computing, processing large data volumes.Desired ProfileWe are looking for a Java Developer who is passionate about real-time systems and has an interest in financial markets, eager to thrive in complex, high-performance environments.- Master's degree (engineering school or university).- Strong skills in Java, multithreading, performance optimization, and development best practices (SOLID, unit tests).- Experience in developing critical systems, real-time data stream processing; finance experience is a plus.- Ability to solve complex technical problems and collaborate with multidisciplinary teams.

About Shift Technology Shift Technology builds AI-driven solutions for the insurance sector. Our platform supports underwriting, claims, and risk management for insurers worldwide. By combining generative, agent-based, and predictive AI, we help clients improve efficiency and deliver better service. Leading insurers trust Shift to drive results at scale. We value innovation and trust, and our SaaS products aim to transform insurance. The team includes colleagues from more than 50 countries, working together to shape the industry's future. Role Overview: Fullstack Developer As a Fullstack Engineer, join our core Engineering team in Paris. The role involves designing and building applications that deliver direct value to clients. Expect to solve complex technical problems with your squad, collaborating closely with Data Scientists, QA specialists, and Product Managers. The position focuses on delivering high-performance, scalable, and reliable solutions that advance our platform. This role also plays a central part in technical migrations and architectural improvements supporting Shift’s mission.

Join Verso, where we are revolutionizing consumer insights with our Consumer Intelligence OS. Our innovative AI-driven platform transforms traditional qualitative research methods by continuously analyzing consumer conversations at scale. Rather than relying on one-off studies, our clients gain a structured and ongoing understanding of their customers.Our mission is to embed consumer insights into every product and marketing decision, creating a real-time, always-on system. We are currently starting with AI-moderated interviews, but our long-term vision is to develop a comprehensive system for consumer understanding powered by dynamic workflows.Backed by Hexa (eFounders), we are building on the success of companies like Aircall, Front, Spendesk, Yousign, and many more.Our founding team brings deep expertise in strategy, technology, and entrepreneurship:Lydia - CEO: HEC graduate with 7 years at BCG (Principal), expert in strategy and consumer goods.Camille - CTO: Dual degree from X/HEC, former lead at CO2 AI, specialized in AI and scalable product development.

Role Overview Nexton is hiring a Java Angular Developer (Mid-Senior Level) for its Paris office. The company works across the Telco, Media, and Transport sectors, building software that supports business goals and improves user experiences. What You Will Do Develop and maintain applications using Java and Angular Work closely with colleagues from different teams to deliver reliable software solutions Contribute technical expertise to projects that matter to the business Location This role is based in Paris.

Your Impact Join Doctolib, a rapidly expanding healthcare technology platform, as we seek talented Frontend Software Engineers in Paris. We welcome developers at all stages of their careers, from newcomers to seasoned professionals, to join our innovative Engineering teams! As a Frontend Software Engineer, your role will be crucial in enhancing Doctolib's mission to provide high-quality products that benefit both patients and healthcare professionals. Your contributions will help solidify our position as a leader in the healthcare technology sector. Your key responsibilities will include: Collaborating with product managers, designers, and fellow engineers to develop features that provide real value to our users. Designing, developing, and maintaining React and TypeScript components while adhering to performance, accessibility, and scalability standards. Enhancing code quality through thorough testing, meticulous documentation, and constructive code reviews. Sharing your expertise and working collaboratively across teams to continuously advance Doctolib's frontend architecture. Life at Doctolib Tech Our solutions are built on a fully cloud-native platform that caters to both web and mobile applications, supports multiple languages, and is tailored to various healthcare specialties. Our technology stack includes Rails, TypeScript, Java, Python, Kotlin, Swift, and React Native. We ethically leverage AI across our products to empower patients and health professionals. Learn more about our AI vision here. Curious about our tech culture and working environment? Visit the Doctolib Tech site.

Join us at Verso, a pioneering startup supported by Hexa, as a Founding Fullstack Engineer. In this role, you will play a crucial part in the development of our innovative platform. You will have the opportunity to work on both the front-end and back-end of our applications, contributing to the overall architecture and enhancing user experience.We are looking for passionate engineers who thrive in a startup environment, are eager to take on new challenges, and are ready to shape the future of our company.