Emplois de senior java backend engineer – Paris

Role SummaryWe are seeking passionate and skilled software engineers to join our team. As a Backend Engineer, you’ll contribute to the development of the core systems powering our three main products, AI Studio, Le Chat & Mistral Code, shaping how users and developers interact with our AI platform at scale. You’ll work on building reliable,...

About UsBase360.ai is the AI operating system for short-term rental businesses, helping property managers run their operations on autopilot.Born out of The Flex, a short-term rental operator that scaled to an eight-figure business using its own software, Base360.ai is now launching as a standalone platform for short-term rental operators worldwide.We bring...

Alice & Bob is seeking a Senior Software Engineer to design and maintain software solutions for their groundbreaking quantum computer. You will lead technical efforts, bridge scientific research with engineering, and mentor junior engineers within a dynamic team.With a focus on creating innovative architectures, this role requires extensive experience in...

Bluecoders recherche un développeur FullStack pour construire un outil SaaS destiné à ses partenaires dans une équipe tech agile et à taille humaine.Vous concevrez et développerez des applications Fullstack en s'appuyant sur Java (Spring Boot), Angular, Python et PostgreSQL, avec Docker, Terraform et CI/CD. Vous garantirez la qualité du code via des...

Theodo Extend recherche un ingénieur logiciel senior pour intervenir sur des projets Java/Spring Boot en contexte client. Vous travaillerez au sein d’une équipe dynamique, avec un encadrement et un partage de connaissances, tout en restant connecté à la communauté Theodo.Vous évoluerez dans un environnement hybride, avec formation continue et...

Meal vouchers via Swile. Streaming TV is no longer just a brand awareness channel. It’s becoming a core part of the performance marketing mix, alongside search and social. Vibe.co is building the platform that makes TV work like the rest of the acquisition stack: targeted, measurable, and optimized for results. Vibe.co is an Audience First Streaming TV...

At Parallel, we build AI agents to help healthcare facilities automate their administrative processes and unlock additional revenue, starting with medical coding.Today, up to 25% of healthcare spending is lost in manual, repetitive administrative work. Legacy software hasn’t helped, it’s made things slower, more complex, and more frustrating for care...

Explore your future careerMalt is growing rapidly. In order to achieve its ambitious goals, we offer you the opportunity to join the Malt engineering team as a Java/Kotlin Developer.The engineering team is part of the product team that creates the most efficient marketplace for our freelancers and clients. The engineering team also supports the other teams...

Linxea recherche un Développeur Backend .NET Senior à Paris pour rejoindre le Lead Technique et la squad. Vous concevrez, développerez et maintiendrez les composants backend afin de livrer des solutions de qualité.Vous avez 4 à 5 ans d’expérience en développement .NET, avec C#, ASP.NET et SQL. Une connaissance d’OAuth 2.0 et d’un Cloud Provider...

Leonar in Paris or Bordeaux seeks a Senior Backend Developer to join our Tech team. You will collaborate with the Head of Software to scale our systems and accelerate product development, owning critical backend modules and driving architectural improvements.The role involves hands-on architecture work, high-impact feature delivery, and close cooperation...

Vibe is building a first-class Developer Platform by exposing its capabilities as a public API. You’ll lead integration projects in collaboration with external partners, shaping data contracts and scaling production-grade connections from CRMs to data partners.Located in Paris, you’ll own the Integrations stack, drive architectural decisions, and guide a...

Senior Java Fullstack Developer ? Dutch? Localisation : Aalst, Belgique ? Secteur : Public Sector ? Type de mission : Freelance / Sous-traitance ? TJM : Ouvert selon profil ?? Langue : Néerlandais obligatoire ? Date limite de soumission : 14/08/2026 à 11h00 Contexte de la missionDans le cadre de la poursuite du projet VMJV (Validation Environmental Annual...

Warren Walter recherche pour l’un de ses clients, acteur majeur des médias, un Développeur Backend Senior Node.js / TypeScript avec 5 ans d’expérience dans des environnements scalables et à forte volumétrie.Vous intégrerez une équipe Data, Activation & Personalisation et travaillerez avec Data, Exploitation, Front-end et Produit pour concevoir,...

Streaming TV is no longer just a brand awareness channel. It’s becoming a core part of the performance marketing mix, alongside search and social. Vibe.co is building the platform that makes TV work like the rest of the acquisition stack: targeted, measurable, and optimized for results.Vibe.co is an Audience First Streaming TV Advertising platform that...

Acteur reconnu de la transformation digitale depuis plus de 30 ans, cette société accompagne des entreprises françaises et internationales dans l’automatisation et la supervision de leurs opérations IT. Grâce à une plateforme logicielle innovante, ils aident leurs clients à moderniser leurs infrastructures et à accélérer leurs projets...

Vocca in Paris seeks a senior backend engineer to own the future of our AI-driven healthcare integrations. You will architect the unified booking layer in TypeScript, ship robust integrations across clinic software, and help scale to millions of calls per month.This is a hands-on, impact-focused role with 4+ years of production backend experience, deep...

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 We are looking for a Confirmed Backend Engineer to join the...

La plateforme de WeeFin a pour vocation de faciliter la validation, l’exploitation et l’enrichissement des données fournisseurs dans le contexte particulier de chacun de nos clients. Cela conduit notre équipe de développeurs à mettre en place des pipelines data, une librairie de calculs configurables par les utilisateurs et des features permettant...

We are seeking a seasoned, digital mindset development engineer to join our team of developers, with demonstrated experience on state of the art tools and techniques on the DevSecOps trends. We need a Full-Stack Developer able to work on Java Backend development ecosystem. The work perimeter will vary between architecture solutions development (accelerators,...

• En tant qu’Expert Back-End JAVA – Software Engineer, vous intervenez sur tous les sujets techniques à court moyen et long terme autour de l’optimisation du backend ETL. Vous intervenez sur  le développement back, développement des API conséquents ; problématiques de performance, scalabilité, sécurité et optimisation de la platforme• Vous...