{"id":3695860,"url":"https://alion.io/job/k-lagan-lead-dev-back-end-java-python-hf-niort","title":"Lead Dev Back-End Java Python (H/F) | Niort","company":{"id":3908321,"name":"K-LAGAN","domain":"k-lagan.com","url":"https://alion.io/company/k-lagan","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":"on_site","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":50000,"max":55000,"currency":"EUR","period":"year","gross":null,"usd_annual":61587},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Apache Kafka","optional":false},{"name":"GitHub","optional":false},{"name":"Java","optional":false},{"name":"Kubernetes","optional":false},{"name":"Python","optional":false},{"name":"Spring Boot","optional":false}],"status":"live","first_seen_at":"2026-11-03T13:24:56Z","employer_posted_date":null,"last_verified_at":"2026-11-03T13:24:56Z","board_verified":false,"closed_at":null,"days_open":0,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":0},"description":"Et si votre prochain projet vous permettait de concevoir des architectures backend robustes et de relever de vrais défis techniques ? 🚀\nChez K-LAGAN, nous recherchons un(e) Lead Dev Back-End Java Python (H/F) pour accompagner l'un de nos clients grands comptes dans la conception et l'évolution de systèmes distribués à forts volumes de données.\n🎯 Votre missionVous interviendrez sur des projets stratégiques nécessitant une forte expertise en Java, Python et Apache Kafka, avec des enjeux de performance, de scalabilité et de résilience.\nVotre rôle combinera architecture technique, développement backend et accompagnement des équipes de développement.\n🔧 Vos principales responsabilitésConcevoir et faire évoluer des architectures backend distribuées.\n\nParticiper activement au développement de services en Java et Python.\n\nConcevoir et optimiser des architectures événementielles avec Apache Kafka.\n\nOptimiser les traitements, les flux et la gestion de volumes importants de données.\n\nAnticiper les problématiques de montée en charge, de performance et de concurrence.\n\nGarantir la résilience des applications : gestion des erreurs, reprises sur incident et prévention des pertes de données.\n\nDéfinir les standards de développement, de qualité et de sécurité.\n\nAccompagner techniquement les développeurs et favoriser le partage des bonnes pratiques.\n\nCollaborer avec les équipes Data, DevOps et Produit.\n\nProfil recherché\n💻 Environnement techniqueCompétences indispensables :\nJava / Spring Boot : excellente maîtrise du développement backend et des architectures microservices.\n\nPython : développement de services et traitements de données.\n\nApache Kafka : expérience significative des architectures événementielles, producteurs, consommateurs et gestion des flux.\n\nArchitecture distribuée : scalabilité, performance, résilience et gestion de la concurrence.\n\nAPI & microservices : conception de solutions robustes et évolutives.\n\nCompétences complémentaires appréciées :\nGitHub, Jenkins\n\nDocker, Kubernetes, OpenShift\n\nAzure ou Scaleway\n\nNode.js\n\nPlaywright\n\n🧠 Votre profil8 à 10 ans d'expérience minimum en développement backend et architecture logicielle.\n\nExpertise confirmée en Java / Spring Boot, Python et Kafka.\n\nExpérience significative dans la conception de systèmes distribués.\n\nCapacité à intervenir aussi bien sur les choix d'architecture que sur le développement.\n\nExpérience en accompagnement technique d'équipes de développement.\n\nSensibilité aux enjeux de qualité, de sécurité et de performance.\n\nAutonomie, esprit d'analyse et bonnes capacités de communication.\n\nNous recherchons avant tout un Tech Lead opérationnel, capable de concevoir des architectures solides tout en restant impliqué dans le développement et les problématiques techniques quotidiennes.","description_format":"text","description_chars":2778,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["IT Consulting & Digital Transformation","Software Testing & QA"],"lifecycle":[{"event":"open","at":"2026-11-03T17:56:15Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring 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