{"id":3884881,"url":"https://alion.io/job/alten-developpeur-full-stack-senior-java-21-angular-20-ia-generative-hf","title":"Développeur Full Stack Senior Java 21 / Angular 20 & IA Générative (H/F)","company":{"id":52934,"name":"ALTEN","domain":"alten.com","url":"https://alion.io/company/alten-com","size_band":"5000+","is_staffing_agency":false,"employer_type":"staffing","is_intermediary":false,"listed_via":null,"ats_vendor":"SmartRecruiters","truth_index":{"grade":"B","score":76,"open_postings":91,"ghost_share":0,"stale_share":0.967,"repost_share":0,"time_to_fill_p50_days":27,"computed_at":"2026-11-08T05:47:12Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Boulogne-Billancourt, France"],"countries":["FR"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":45000,"max":65000,"currency":"EUR","period":"year","gross":null,"usd_annual":72493},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"AI Agents","optional":false},{"name":"Angular","optional":false},{"name":"AWS","optional":false},{"name":"Azure","optional":false},{"name":"CI/CD","optional":false},{"name":"Claude","optional":false},{"name":"Docker","optional":false},{"name":"ElasticSearch","optional":false},{"name":"GCP","optional":false},{"name":"GitHub Actions","optional":false},{"name":"GitLab CI","optional":false},{"name":"Java","optional":false},{"name":"Kubernetes","optional":false},{"name":"LangChain","optional":false},{"name":"LangGraph","optional":false},{"name":"LLM","optional":false},{"name":"Mistral","optional":false},{"name":"OpenAI","optional":false},{"name":"Pinecone","optional":false},{"name":"RAG","optional":false},{"name":"Rest API","optional":false},{"name":"RxJS","optional":false},{"name":"Semantic Kernel","optional":false},{"name":"Spring Boot","optional":false},{"name":"Spring Security","optional":false},{"name":"TypeScript","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-11-06T16:19:22Z","employer_posted_date":"2026-11-06","last_verified_at":"2026-11-09T01:38:16Z","board_verified":true,"closed_at":null,"days_open":2,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":2},"description":"ALTEN, leader mondial de l'Ingénierie et du Conseil en Technologies, depuis 35 ans accompagne les grands acteurs des secteurs Banque, Assurance, Télécoms, Énergie, Transport, Industrie et Défense dans leurs projets de transformation digitale et d'innovation. Avec plus de 57 000 collaborateurs à travers le monde, ALTEN participe au développement de solutions technologiques à fort impact, notamment autour de l'Intelligence Artificielle et des architectures logicielles de nouvelle génération.\n Dans le cadre du développement de plateformes innovantes intégrant les dernières avancées en Intelligence Artificielle chez nos clients , nous recherchons un(e) Développeur Full Stack Senior Java / Angular passionné(e) par les architectures modernes et les systèmes d'IA générative.\nVous participerez à la conception et au développement de solutions à forte valeur ajoutée reposant sur Java 21, Angular 20, LLM, RAG et Agentic AIou IA génerative, au sein d'équipes Agile pluridisciplinaires.\nVos missions\nConcevoir et développer des applications Full Stack performantes en Java 21 et Angular 20\nParticiper à la définition des architectures techniques et des bonnes pratiques de développement\nIntégrer des solutions d' IA Générative basées sur les LLM (OpenAI, Azure OpenAI, Claude, Mistral, etc.)\nDévelopper des agents intelligents et workflows d'Agentic AI\nMettre en œuvre des architectures RAG (Retrieval-Augmented Generation)\nDévelopper et exposer des API REST sécurisées\nContribuer à l'industrialisation via CI/CD, conteneurisation et cloud\nParticiper aux revues de code et à l'amélioration continue des applications\nProfil recherché\nCompétences techniques\nBack-end\nJava 21\nSpring Boot 3\nSpring Data, Spring Security, Spring Batch\nMicroservices\nAPI REST\nFront-end\nAngular 20\nTypeScript\nRxJS\nHTML5 / CSS3\nIA Générative\nLLM (OpenAI, Azure OpenAI, Mistral, Claude)\nAgentic AI / IA génerative\nLangChain, LangGraph, Semantic Kernel ou frameworks équivalents\nRAG\nVector Databases (Pinecone, ChromaDB, Azure AI Search, Elasticsearch)\nDevOps & Cloud\nDocker\nKubernetes\nGitLab CI/CD ou GitHub Actions\nAzure, AWS ou GCP\n Profil\nBac+5 en informatique ou équivalent\n Minimum 5 ans d'expérience en développement Java\nExpérience significative sur Angular\nPremière expérience réussie autour de l'IA Générative ou forte appétence sur le sujet\nCapacité à évoluer dans un environnement AgilE\nExcellentes capacités de communication en français, à l'écrit comme à l'oral.\nBon niveau de communication et esprit d'équipe\n Pourquoi nous rejoindre ?\nProjets innovants autour de l'IA et du Cloud.\nEnvironnement technique moderne.\nParcours de formation et certifications.\nÉvolution rapide vers des postes d'expertise ou d'architecture.\nTélétravail et équilibre vie professionnelle / vie personnelle.","description_format":"text","description_chars":2772,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"French","level":"All 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