{"id":2023380,"url":"https://alion.io/job/crafteam-developpeur-senior-tech-lead-java-scala-kafka-hf","title":"Développeur Senior / Tech Lead Java – Scala & Kafka (H/F)","company":{"id":3908520,"name":"Crafteam","domain":"crafteam.io","url":"https://alion.io/company/crafteam","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Backend","role_family":"Backend","seniority":"lead","employment_type":"freelance","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Niort, France"],"countries":["FR"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":400,"max":480,"currency":"EUR","period":"day","gross":null,"usd_annual":135000},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Apache Kafka","optional":false},{"name":"GitLab","optional":false},{"name":"Java","optional":false},{"name":"Rest API","optional":false},{"name":"Scala","optional":false}],"status":"live","first_seen_at":"2026-09-03T13:59:44Z","employer_posted_date":null,"last_verified_at":"2026-09-03T13:59:44Z","board_verified":false,"closed_at":null,"days_open":59,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":59},"description":"Nous recrutons pour l’un de nos clients, acteur majeur du secteur de l’assurance, un Développeur Senior / Tech Lead Java disposant d’une solide expertise en Java, Scala et Kafka.\nVous intégrerez une équipe technique travaillant sur des applications à forts enjeux métier et contribuerez à la conception, au développement et à l’évolution de solutions robustes, scalables et performantes.\nEn tant que Développeur Senior / Tech Lead, vous serez amené(e) à :\nConcevoir et développer des applications backend en Java et Scala.\n\nParticiper à la définition et à la mise en œuvre de l’architecture technique.\n\nConcevoir et maintenir des architectures orientées événements avec Apache Kafka.\n\nDévelopper des APIs et des services distribués.\n\nGarantir la qualité, la performance, la maintenabilité et la sécurité du code.\n\nParticiper aux choix techniques et être force de proposition sur les solutions d’architecture.\n\nRéaliser les revues de code et accompagner les développeurs de l’équipe.\n\nIdentifier les problématiques techniques et proposer des solutions adaptées.\n\nParticiper à la mise en place et à l’amélioration des bonnes pratiques de développement.\n\nContribuer aux phases de conception, développement, tests, intégration et mise en production.\n\nAssurer une veille technologique et proposer des évolutions pertinentes.\n\nCollaborer étroitement avec les équipes Produit, Architecture, DevOps et les autres équipes techniques.\n\nEnvironnement technique\nBackend\nJava 8/11/17+\n\nScala\n\nSpring / Spring Boot\n\nAPI 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