Software Engineer Jobs in Pays de la Loire, France

Ippon Technologies, a French consulting firm, seeks a Software Engineer to join its Nantes agency. The role blends agile development across front‑end and back‑end stacks—Java/Spring, Node.js, Python, Angular, Vue, React—while contributing to CI/CD pipelines, TDD/BDD practices, and architectural decisions.

Engineering – Back-End at SFEIR Rennes builds modern full‑stack applications and cloud‑native services. The role designs and implements Java 21/Spring Boot back‑ends, creates rich Angular or React front‑ends, and contributes to API design, micro‑service architecture, and generative AI tooling.

Software Engineer on Scaleway’s Non-Relational Database team, building and scaling Redis and MongoDB products for sovereign cloud regions. Day‑to‑day work includes Kubernetes cluster management, Helm/ArgoCD deployments, GoLang coding, Terraform IaC, and performance tuning.

Software Engineer (H/F) – Join Ippon, a French digital consulting firm, to build high‑visibility products across backend and frontend stacks. You’ll work on Java/Spring back‑ends and modern JavaScript frameworks such as Angular, React, or Vue, while deploying solutions to the cloud using Docker and GitLab CI pipelines.

SFEIR seeks a Java Software Engineer to join its Nantes team, blending on‑site collaboration with flexible remote work. The role focuses on building robust web and mobile applications, designing future‑proof cloud and data architectures, and driving AI innovation through tools like RAISE.

Datadog is a leading SaaS platform that empowers engineers to monitor, troubleshoot, and secure their systems at scale. As a Senior Software Engineer, you will tackle high‑volume challenges, design scalable solutions, and collaborate across teams to deliver reliable features.

Compute Marketplace team at Scaleway builds a robust ecosystem of OS images and packaged applications for users and publishers. The Software Engineer designs and develops new marketplace features, maintains APIs, automates OS image creation with Packer, manages artifacts, ensures security via CI/CD and scanning, and collaborates with Product Management and Core Engineering across Paris, Lille, Toulouse, Rennes, Rouen, Bordeaux, and Lyon in a hybrid model.

Distributed Systems engineers at Datadog design, implement, and run in production the foundational platforms powering our applications. Your data pipelines will ingest, store, analyze, and query in real-time billions of events per second from companies all over the globe, with platforms optimized for durability, high availability, low latency, internet-scale footprint, and operability.

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

Développement team at NielsenIQ builds data platforms for the retail sector, turning millions of product, price and promotion data points into actionable insights. The role designs, evolves and optimizes SQL Server databases, writes complex stored procedures, and ensures high‑performance data pipelines while collaborating with Front‑End teams on API access.

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.

Direction des Ressources Humaines de SIX GTS France – the HR hub supporting the Hardware and Software Technologies & Engineering centre. The HR Business Partner drives performance, talent development and employee experience for 530 engineers across Cholet and Gennevilliers, leading initiatives in performance management, talent mobility, inclusion and workplace wellbeing.

Network Connectivity Automation team at OVHcloud builds cloud‑native APIs that let customers provision and manage network resources across data centers. Senior Software Engineers design, develop, test and ship scalable Go micro‑services, leveraging AI tools to accelerate development while ensuring code quality and robustness.

Senior Software Engineer (Frontend) at Doctolib, leading Design System & Mobile team. Build scalable Web & mobile Design System with React & React Native, unify UX across platforms, mentor team, champion accessibility, leverage AI for DevX, support product teams, improve docs, CI workflows.

SFEIR Niort team builds modern full‑stack applications, combining Java, JavaScript, cloud native architectures and generative AI tools to deliver high‑impact solutions for insurance and large‑scale SI clients. The Senior Engineer designs and implements robust Java 21/Spring Boot services, rich Angular or React front‑ends, and secure REST APIs while shaping micro‑service and event‑driven architectures.

We are hiring a Senior Software Engineer for our IT & Sales Tooling team. Our mission is to professionalize Scaleway's internal software ecosystem.

Au sein du domaine In-Store , nous souhaitons offrir le meilleur parcours aux coéquipiers en magasin et aux clients. La mission de l'équipe Tech4instore est d’adresser à l’échelle du domaine In Store les pain point tech, simplifier et accélérer le déploiement pour nos équipes, être un creuset de l’innovation et de l’exigence technique.

Le projet : Conception d’applications web d'aide à la décision AI & Data-driven Avec Manager’s Companion, nous aidons les managers de plus de 1 900 magasins dans 56 pays à analyser et piloter leur activité en temps réel. Pour accompagner le déploiement international du produit, nous recherchons un·e Software Engineer à dominante frontend pour rejoindre une équipe composée de développeurs, d’un Product Manager, d’une QA et d’un Support.

Pour accompagner le développement de nos solutions à Cholet , nous recherchons un(e) Développeur(se) Front-End JavaScript confirmé(e) avec une sensibilité Back-End .Net. Votre mission Au sein de notre équipe Développement, vous participerez à la conception et à l'évolution de nos applications web utilisées en interne et par nos clients. Votre temps sera principalement consacré au développement Front-End (environ 80%), avec une participation ponctuelle aux développements Back-End C# / .Net (20%).

ITS Security team at Thales in Cholet designs secure communication software for radio, satellite and network systems. The role develops embedded C/C++ code, designs detailed software components, creates and runs tests, integrates across multi‑disciplinary domains and supports validation teams.