{"id":3606601,"url":"https://alion.io/job/catamania-tech-lead-java-react-hf","title":"Tech Lead Java / React (H/F)","company":{"id":183709,"name":"Catamania","domain":"catamania.com","url":"https://alion.io/company/catamania","size_band":"1001-5000","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":"freelance","work_mode":"hybrid","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":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Java","optional":false},{"name":"Spring Boot","optional":false}],"status":"live","first_seen_at":"2026-11-02T09:24:05Z","employer_posted_date":null,"last_verified_at":"2026-11-02T09:24:05Z","board_verified":false,"closed_at":null,"days_open":1,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":1},"description":"Catamania recrute un(e) Tech Lead Java / React pour renforcer ses équipes nantaises !\nChez Catamania, nous accompagnons nos clients dans leurs projets de transformation digitale et leurs enjeux technologiques. Nous intervenons auprès de grands acteurs sur des projets IT variés, en mettant l'expertise technique et la proximité humaine au cœur de notre approche.\nDans le cadre de notre développement, nous recherchons un(e) Tech Lead Java / React pour intervenir sur des projets applicatifs à forte valeur ajoutée.\nEn tant que référent technique, vous serez amené(e) à :\nParticiper à la conception et aux choix d'architecture des applications.\n\nEncadrer techniquement les équipes de développement et accompagner leur montée en compétences.\n\nContribuer au développement d'applications en Java et React.\n\nGarantir la qualité, la performance et la maintenabilité du code.\n\nRéaliser des revues de code et diffuser les bonnes pratiques de développement.\n\nCollaborer avec les Business Analysts, Product Owners et équipes projet.\n\nIdentifier les axes d'amélioration technique et participer à l'évolution des pratiques de développement.\n\nProfil recherché\nVous disposez d'une expérience significative 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