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# Développeur Fullstack Senior (Java / Spring Boot) H/F

- **Company:** Hays
- **Location:** Vannes, France
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Agile Methodology, JIRA, Software as a Service, Databases, PostgreSQL, Model View Controller (MVC), OAuth, Pair Programming, Scrum Methodology, TypeScript, Openapi, Delivery Pipeline, Spring-boot, Backend, Git, AngularJS, Front End Software Development, Restful APIs, Microservices
- **Published:** August 28, 2026
- **Apply:** https://www.hays.fr/description-emploi/d%C3%A9veloppeur-fullstack-senior-%28java-spring-boot%29-h-f-vannes_1453281

## About the Role

* Bac+5 (école d'ingénieur idéalement)
 * Minimum 5 ans d'expérience en développement.
 * Expérience idéalement chez un éditeur SaaS BtoB / plateforme
 * Forte dominante backend, * Backend : Java, Spring Boot (MVC, Data, Security)
 * API : REST, OAuth2 / JWT, OpenAPI
 * Frontend : Angular (TypeScript)
 * Base de données : PostgreSQL
 * Architecture : microservices, event-driven
 * Outils : Git, Jira, Agile

## Description

Rattaché au CTO, vous intervenez sur des sujets à la fois BUILD et RUN, au cœur de la transformation de la plateforme.

BUILD - Développement & Architecture

 * Participer aux choix d'architecture (microservices, patterns, découpage applicatif)
 * Concevoir et développer des fonctionnalités backend robustes (Java / Spring Boot)
 * Intervenir sur le frontend (Angular / TypeScript) en support des besoins produit
 * Concevoir des API REST sécurisées et documentées
 * Structurer les socles techniques et contribuer aux pipelines CI/CD

RUN - Maintenance & Investigation

 * Analyser et corriger des anomalies complexes (frontend & backend)
 * Investiguer les incidents de production et identifier les causes racines
 * Mettre en place des correctifs durables et documenter les solutions

Transverse - Qualité & Transmission

 * Garantir la qualité du code (tests, bonnes pratiques, revues)
 * Participer aux rituels Agile (Scrum / Jira)
 * Accompagner les développeurs juniors (mentorat, pair programming)
 * Contribuer à l'amélioration continue des pratiques techniques, * Poste stratégique avec forte autonomie et proximité avec le CTO
 * Culture du collectif et du mentorat (équipe mixte en séniorité)
 * Environnement stimulant : innovation, challenges techniques et produit
 * Entreprise familiale avec vision long terme et forte stabilité


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