backend developer

Salt is seeking a Senior Python Technical Lead to join our dynamic team in Paris. This role involves designing and developing scalable backend solutions while providing technical leadership. You will mentor developers and ensure high-quality software delivery.The ideal candidate has 8+ years of Python development experience, expertise in FastAPI, and a...

BeTomorrow – SARL in Bordeaux is seeking an experienced backend developer to join our agile teams and deliver robust server-side applications across cloud, AI, and data platforms.You will work with SpringBoot (Kotlin), FastAPI, and NestJS, embrace CI/CD, containerization with Docker, and continuously improve code quality for long-term maintainability.We...

Senior Backend Engineer — Legal-Tech AI — ParisBuild the platform and APIs powering an AI agent for the notarial and real-estate world. Backend at scale, hybrid GCP/Azure cloud, high product impact. Abbeal permanent role, Paris hybrid, ASAP start.The contextA French legal-tech building an AI agent for the notarial and real-estate sector is looking for a...

Why Valtech? We’re the experience innovation company - a trusted partner to the world’s most recognized brands. To our people we offer growth opportunities, a values‑driven culture, international careers and the chance to shape the future of experience. The opportunity At Valtech, you’ll find an environment designed for continuous learning,...

About VoodooFounded in 2013, Voodoo is a tech company that creates mobile games and apps with a mission to entertain the world. Gathering 800 employees, 7 billion downloads, and over 200 million active users, Voodoo is the #3 mobile publisher worldwide in terms of downloads after Google and Meta. Our portfolio includes chart-topping games like Mob Control...

Contexte de la mission : Viveris accompagne ses clients dans la conception et le développement de logiciel de haute technologie. Dans ce cadre, nous recherchons un Développeur backend Java pour accompagner notre client dans le développement de sa solution de monétique. Vous êtes intégré dans l'équipe R&D en charge de la partie serveur des...

Infotel Conseil recherche un développeur backend Java expérimenté pour accompagner nos clients nantais sur des projets à forte visibilité orientés backend. Vous évoluerez au sein d’une équipe agile et serez autonomes sur les développements.Vous travaillerez sur Java 17/21 (Spring Boot, JPA/Hibernate), concevrez et consommerez des API REST, et...

Scale-up internationale en forte croissance, cette entreprise développe une plateforme SaaS innovante dédiée à l’optimisation des infrastructures solaires à grande échelle. Sa mission est claire : accélérer la décarbonation de l’économie mondiale grâce à la technologie, en combinant data, automatisation et software avancé. Leur produit phare...

Jobtailor in Lyon is seeking an experienced backend engineer to own and implement Node.js/TypeScript services across cross-functional projects. You will mentor junior developers, drive architecture decisions, review PRs, and refactor the codebase to improve performance, reliability and development practices while collaborating with non-technical...

A leading digital finance firm in Paris is seeking a Senior Backend Web Developer to lead and own the client-facing platform. This role requires 5+ years of backend engineering experience, especially in fintech or crypto sectors, and strong production experience in Rust. Candidates will deliver secure APIs, mentor a small team, and collaborate with product...

XXII déploie CORE, sa plateforme de vision par ordinateur, sur plus de 30 sites.Celle-ci analyse des flux vidéo, issus de caméras, en temps réel pour en extraire des informations directement actionnablesChez XXII, on s’attaque à des problèmes techniques exigeants, sur un marché où 95 % des données vidéo ne sont jamais analysées.La particularité...

A leading technology company is seeking a passionate Software Developer (Backend SaaS) to contribute to the management solution for Ubuntu. This role offers the opportunity to work in a distributed team environment, focusing on high-quality code development in Python. Candidates should have a degree in Computer Science or a related field and experience with...

Veepee, a pioneer of online flash sales in France, is looking for a backend developer with strong experience in C# and .NET. This role involves developing new features, integrating platforms, and ensuring code quality in a dynamic and creative environment.The ideal candidate will have over 5 years of experience, excellent analytical skills, and a strong...

About BlaBlaCarBlaBlaCar is the world’s leading community-based travel app enabling 27 million members a year to carpool or travel by bus in 21 countries. Our team of 800 employees counts over 50 nationalities and is spread across our 5 global offices, 30% working fully remotely.Your Mission The Carpool Monetization team plays a key role at BlaBlaCar:...

Edenred Italia S.r.l. is seeking a Backend .Net Developer (H/F) to build robust, scalable back-end services powering client-facing solutions across markets.You will design and implement RESTful APIs, collaborate closely with cross-functional teams, and contribute to CI/CD and DevOps practices in a hybrid, France-based environment. The role emphasizes secure...

IBSC LTD in Strasbourg, France is seeking a senior backend developer to design and build modern, event-driven microservices and distributed systems. The role requires relocation or local residence in Strasbourg, hybrid work, and EU-national eligibility.The budget is €400 per day, all inclusive, for a 12-month rolling contract. The ideal candidate will have...

About Swan is Europe’s embedded banking specialist. We empower software companies to embed banking features like accounts, cards, and payments directly into their products, under their own brand. Swan processes over €1.5 billion in monthly transactions for more than 150 companies—like Pennylane, Indy, Agicap, Libeo, and Lucca. Founded in 2019, the...

Clutch Canada is seeking a skilled backend developer to join Speechify’s Platform team. This fully remote role involves designing and maintaining robust APIs, collaborating with cross-functional teams, and enhancing backend services. The ideal candidate will have proven expertise in TypeScript/Node.js, experience with Google Cloud Platform, and knowledge...

Speechify, a fully distributed company without a fixed office, is seeking a senior backend engineer to design, develop, and maintain robust APIs including public TTS, Payment, Subscription, Auth, and analytics. You will optimize the backend landscape for performance and scalability while collaborating with cross-functional teams to meet enterprise needs.The...

DÉVELOPPEUR BACKEND C# / .NET CDI Hybride - Paris ou Bordeaux ou Metz SAGE Dans le cadre de la croissance d’Akao, solution SaaS B2B spécialisée dans la gestion et la dématérialisation de documents comptables, et de son intégration progressive au sein du groupe Sage, nous renforçons notre équipe R&D. Tu rejoindras une équipe de développement à...