{"id":4159817,"url":"https://alion.io/job/norgay-tech-lead-backend-java-hf-nantes","title":"Tech Lead Backend Java (H/F) – Nantes","company":{"id":3908606,"name":"Norgay","domain":"norgayitservices.com","url":"https://alion.io/company/norgay","size_band":null,"is_staffing_agency":false,"employer_type":"services","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Backend","role_family":"Backend","seniority":"lead","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Nantes, France"],"countries":["FR"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":48000,"max":48000,"currency":"EUR","period":"year","gross":null,"usd_annual":53275},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Java","optional":false},{"name":"Kotlin","optional":false},{"name":"Rest API","optional":false},{"name":"Spring Boot","optional":false}],"status":"live","first_seen_at":"2026-11-12T10:26:27Z","employer_posted_date":null,"last_verified_at":"2026-11-12T10:26:27Z","board_verified":false,"closed_at":null,"days_open":2,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":2},"description":"Contexte de la mission\nDans le cadre d'un projet stratégique de modernisation d'une solution mobile utilisée par un important réseau de distribution, nous recherchons un Tech Lead Backend Java pour accompagner la migration de services centraux historiques vers une architecture applicative modernisée.\nLe projet porte notamment sur la conception et le développement de nouveaux services backend, la création d'API REST, la mise en place de traitements batch ainsi que la construction d'une nouvelle base de données.\nVous interviendrez à la fois sur les aspects techniques, architecturaux et opérationnels, tout en conservant une dimension importante de développement.\nVos missions\nEn tant que Tech Lead Backend Java, vos principales responsabilités seront :\nPrendre connaissance de l'environnement technique, fonctionnel et applicatif existant.\n\nParticiper au cadrage du projet et à la définition de l'architecture applicative cible.\n\nInitialiser les composants dans la chaîne d'intégration continue et mettre en place les fondations techniques.\n\nConcevoir et développer les premiers composants de référence : API REST, services web et batchs Java.\n\nAccompagner et coacher l'équipe de développement sur les bonnes pratiques Java.\n\nParticiper aux choix techniques, aux revues de code et à la validation des Merge Requests.\n\nContribuer activement au développement des nouveaux composants backend et de la base de données.\n\nDéfinir et réaliser les tests, traiter les retours de recette et de déploiement.\n\nProduire la documentation technique et préparer les éléments nécessaires à la mise en production.\n\nGarantir la performance, la robustesse, la résilience et la maintenabilité des solutions développées.\n\nIntégrer l'utilisation de l'intelligence artificielle dans les travaux de développement lorsque cela apporte une réelle valeur ajoutée.\n\nSelon votre profil, vous pourrez également intervenir ponctuellement sur l'évolution de composants en Kotlin.\nConditions du poste\nPoste basé à Nantes.\n\nContrat CDI uniquement.\n\nDémarrage souhaité : 4 janvier 2027.\n\nIntervention sur un projet de modernisation stratégique pour le client.\n\nProfil recherché\nProfil recherché\nVous justifiez d'une solide expérience en conception et développement backend Java et avez déjà évolué dans des environnements exigeants nécessitant qualité de code, performance et fiabilité.\nVous maîtrisez particulièrement :\nLe développement Java moderne (Java 17 minimum).\n\nL'écosystème Spring et Spring Boot.\n\nLa conception d'API REST et de services backend.\n\nLes traitements batch avec Spring Batch.\n\nLes bases de données relationnelles.\n\nLes pratiques de tests, d'intégration continue et de revue de code.\n\nVous êtes capable de prendre du recul sur les choix d'architecture tout en restant opérationnel dans le développement.\nVotre capacité à accompagner techniquement une équipe, à partager vos connaissances et à être force de proposition sera essentielle pour réussir dans ce 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