Software Engineer Jobs in Brittany, France

Collins Aerospace, a Raytheon Technologies company, leads advanced aerospace and defence technologies. As a Software Engineer you will contribute across the full software development lifecycle, designing embedded software architectures, creating test specifications, developing C/C++ code, and verifying solutions for navigation systems.

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.

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.

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.

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.

Smart and Critical Systems (SCS) team at Thales builds secure software solutions for defense and critical infrastructure. The role develops and maintains Java applications, automates CI/CD pipelines, and drives continuous DevOps improvements while collaborating with cross‑functional development teams.

Smart and Critical Systems (SCS) at Thales develops secure software and system integration solutions for defense, aerospace and digital domains. The Software Development Engineer will design, code and maintain Java applications, automate CI/CD pipelines, and collaborate with dev teams to enhance DevOps practices.

As the Lead Software Engineer, you will be responsible for leading complex multi-domain software developments for deployment on our growing fleet of autonomous vessels and ground systems. Interfacing with design teams across the UK and Europe, you will be the single coordination and point of contact for all things Maritime Software.

Be the one building AI-powered experiences where they matter most. At Genesys, we help organizations create better customer experiences through AI-powered experience orchestration.

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.

Under Water Systems Software Engineering team at Thales develops distributed Java applications for maritime patrol and surveillance systems. The role designs, builds and maintains micro‑service based Java/JavaFX applications, collaborates with DevSecOps on CI/CD pipelines and follows Agile/Scrum processes.

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.