Backend Developer Jobs in Pays de la Loire, France

FinTech Platform Engineering team at Horizon Trading Solutions builds a high‑performance trading platform for electronic markets. The Backend Java Developer Intern will write clean, maintainable Java code, collaborate on new features, and participate in code reviews and agile processes within a Scrum team of 6‑9.

Speechify’s Platform team builds and maintains backend services powering text‑to‑speech, payments, analytics, and subscription APIs. As a Software Engineer, you’ll design, develop, and optimize robust APIs, oversee the backend landscape, and collaborate on B2B solutions for enterprise clients.

Titan Live team at Ateme develops real‑time audio/video transcoding and packaging applications, often as micro‑services on private or public clouds. The Software Engineer designs architecture, writes backend code in Python and C++, creates automated unit and functional tests, ensures performance and robustness, and delivers and maintains the product.

Software Engineer – Compute at Scaleway, a leading European cloud provider focused on secure, sustainable infrastructure and AI. Join a 6‑person Serverless Compute team to build backend services in Go, orchestrate workflows with Temporal, manage Kubernetes infra via Terraform, Packer, FluxCD, and GitLab CI. Drive scalability, resilience, and automation while mentoring juniors in a collaborative, multilingual environment.

Object Storage team at Scaleway builds and operates a high‑performance, S3‑compatible storage platform serving millions of customers. The engineer leads major architecture projects, designs new service classes, and implements features to ensure reliability and support regional expansion, while collaborating with the Beekeeper backend team and SRE Storage.

Software Engineer – Hardware Development at Scaleway. Join a team of 6 in Paris, Lille, Toulouse, Rennes, Rouen, Bordeaux, Lyon.

Core Experiences Team at Speechify builds foundational services and SDKs powering the product across platforms. As a Senior Software Engineer, you design clear, reliable APIs and efficient abstractions to improve loading speed and parsing intelligence.

SolutionsTW, the SAP software product unit at TeamWork, builds certified SAP add‑ons and cloud extensions for multiple clients. The SAP Full Stack Developer designs, codes, and delivers end‑to‑end SAP solutions—from ABAP OO backend services and OData APIs to Fiori UI5 applications—while mentoring junior developers and ensuring compliance with Clean Core and SAP BTP standards.

Backend Development Team at Inetum builds robust Java back‑end solutions for diverse client needs. The role designs and implements APIs, micro‑services, and modular architectures using Spring Boot or Quarkus, while managing relational and object databases and driving CI/CD pipelines with Jenkins, Docker, Kubernetes and GitLab.

Services Financiers division at Sopra Steria drives digital transformation for banking and insurance clients. As a Fullstack Developer you design and implement backend Java microservices and frontend Angular/React features, contribute to CI/CD pipelines, and integrate AI APIs (LLM, NLP, OCR) into solutions.

Applications team in Nantes builds and maintains client-facing Java and JavaScript solutions, focusing on modern web platforms and backend services. The role designs, codes, and reviews features using Spring Boot and Angular, ensures test coverage with TDD/BDD, and improves code quality and security.

Senior Full Stack Developer needed for Asifr's Rennes Digital team. Full‑time, hybrid role with partial remote.

Safran.AI, a subsidiary of Safran Electronics & Defense, seeks a Senior Fullstack Developer to join its Rennes team. The role focuses on designing, developing, and maintaining the company's AI-driven satellite image analysis product and its infrastructure.

Digital Factory team builds native mobile solutions for clients in mobility. As Lead Android Kotlin Developer you will design and develop robust Android apps using Kotlin, MVVM, Clean Architecture and Jetpack Compose, mentor the Android crew and drive technical standards.

Backend Development Team at Inetum builds scalable back‑end solutions for diverse client needs. The Java Developer designs and implements robust APIs and micro‑services using Spring Boot or Quarkus, manages relational and object databases, and drives CI/CD pipelines with Docker, Kubernetes, Jenkins and Gitlab.

STM32 Developer Tools team builds the software ecosystem for STM32 microcontrollers, including STM32CubeMX and STM32CubeIDE. The Software Engineer develops and maintains backend and core components, implements features in Rust, C++, JavaScript and TypeScript, and contributes to package management infrastructure.

Tech Lead Java (H/F) – SFEIR in Nantes seeks an experienced Java engineer to spearhead backend development, architect scalable solutions, and mentor a small team. The role blends on‑site collaboration with flexible hybrid work, offering 3 days in office and 2 days remote.

Accenture Technology Solutions team drives digital transformation for clients by designing robust backend architectures. The Lead Technique Node.js role defines technical architecture, mentors developers, and ensures production performance, scalability, and observability.

Services Financiers division at Sopra Steria drives digital transformation for major banking clients. The Java Fullstack Developer designs and builds backend Java services and frontend React applications, leads code reviews, and ensures CI/CD pipelines run smoothly within a 5‑15 member project team.

Sopra Steria’s Services Financiers team builds digital banking solutions. As a Java Fullstack developer you design, code, and review backend and frontend User Stories, lead CI/CD, and mentor junior devs.