Emplois de backend engineer nodejs – Paris

Proton Technologies AG in Paris is seeking a Backend Engineer to join the Account Team, building Proton's most vital services for over 100 million users worldwide. You will craft scalable, secure backend systems, collaborate with product, design, APIs, and cross-functional squads, and turn complex technical challenges into robust, user-friendly features.The...

Cafeyn is seeking a Backend Developer to join the Tech - Back End team of 10+ developers. You will contribute to building robust, scalable, and secure back-end systems, APIs and services. The role emphasizes code quality, testing, and collaboration in an agile environment.The position is open to full remote within France with a hybrid office culture and...

A technology company in Paris is seeking a Mid-Senior Software Engineer specialized in Go programming. You will work on systems architecture and API development, enhancing features for user authentication services. Candidates should have a product-led mindset and experience in building scalable systems with AWS technologies. The role offers a competitive...

Description du posteLe boncoin est le premier site généraliste de vente entre particuliers en France, leader sur les marchés de l’immobilier et de l’automobile, et un acteur clé dans l’emploi et la location de vacances. Le système de dépôt d’annonces est un composant critique de la plateforme, alimentant l’ensemble des expériences...

Une entreprise innovante dans le secteur SaaS recherche un(e) Développeur(euse) Backend PHP confirmé(e). Vous serez responsable de la conception et du développement de fonctionnalités backend critiques pour leur produit no-code. Le poste implique une forte culture d'excellence technique, une flexibilité en télétravail, et un impact direct sur le...

Roundtable is building the gold standard for private equity with a 10-engineer senior full-stack team, and opening a third squad. You will tackle domain-driven puzzles and ensure precise financial computations, owning end-to-end reliability and scalable architecture.Join a fintech startup culture with hybrid offices in Paris or Toulouse, a salary range of...

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...

Wecasa recherche un développeur Rails expérimenté pour rejoindre une équipe tech dynamique à Paris et en mobilité. Vous intégrerez une architecture modulaire et contribuerez à la marketplace en collaboration avec Product Designers et Managers.Vous participerez à l’amélioration des features clients, professionnels et service client, avec une forte...

Une entreprise de technologie recherche un développeur backend expérimenté pour concevoir des microservices en Go. Vous optimiserez les performances et la concurrence, tout en implémentant des APIs gRPC/REST. Les candidats doivent avoir au minimum 3 ans d'expérience en Go, une maîtrise des bases de données et des environnements comme Kubernetes. Ce...

Onyx-Conseil recherche un développeur backend expérimenté en Golang pour travailler sur un référentiel applicatif critique. Vous concevrez et maintiendrez des API REST et des microservices, en vous connectant à PostgreSQL/MySQL et en épaulant l’intégration via Kafka et Gin.Le poste nécessite des compétences en Kubernetes et l’usage de l’IA...

Numberly est reconnu comme l’un des meilleurs specialists mondiaux du Data Marketing avec près de 500 collaborateurs et 11 bureaux dans le monde au service de plus de 300 clients de premier plan (L'Oréal, Arte, Groupe Seb, Pernod Ricard, SNCF, Aigle, HSBC...). En mettant la technologie au service des marques et des consommateurs, Numberly est au cœur de...

About Voodoo Founded 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...

Mistral is seeking passionate and talented software engineers to join our team as Backend Engineer. You will help build core systems powering our Cloud solutions, designing robust APIs and scalable services for our rapidly expanding enterprise user base.You will work with product managers, frontend engineers and data/AI teams across our global footprint,...

About GitGuardianGitGuardian is a global cybersecurity scale-up. The company is based in Paris, New-York City, Boston.Among our early investors who saw our market value proposition, are the co-founder of GitHub, Scott Chacon, along with Solomon Hykes, Docker's co-founder. American and European top-tier VC firms have also invested in GitGuardian who raised...

We are looking for our first Software Engineer, User Safety Tooling! About the role As an Engineer on our User Safety team, you'll design and build internal systems to protect our users, support data collection, and ensure compliance with global regulations. You'll join a small, fast-paced team where you'll have the freedom to be creative and develop...

A financial technology company is seeking a Senior Software Engineer to build and scale core backend services. The role involves designing APIs and microservices while ensuring performance and security. Candidates should have 8+ years in backend engineering, be proficient in TypeScript, and have experience with databases and AWS. This position offers...

A global health technology leader located in Paris is seeking a Senior Backend Software Engineer to modernize backend architecture from Ruby on Rails to microservices. The role involves supporting feature teams and providing technical leadership in backend development. Ideal candidates should have extensive experience in backend systems, cloud...

BlaBlaCar is seeking a Senior Backend Engineer to join the Payment Squad in Paris. You will own the delivery of a reliable, scalable platform for the full payment lifecycle, fraud defense, and compliance, including expanding tailored payment methods across countries.You will collaborate with Legal, Cash Management & Finance, and other teams and mentor junior...

GetVocal AI Ltd. in France is seeking a Senior AI Software Engineer to design and operate production-grade backend systems powering real-time conversational AI agents.You’ll build low-latency services with Python, FastAPI, Redis, and event-driven architectures, ensuring reliability under production traffic and integration with LLM providers. The role...

Jobtailor is seeking a backend engineer to design and develop the backend for AI systems. You will build AI-focused backend applications with Python, emphasizing production-grade code.Contribute to the backend of Reemia’s interface, implementing architectures for agent orchestration capable of handling large data volumes, in a cloud environment (AWS)....