{"id":1157781,"url":"https://alion.io/job/sopra-steria-tech-lead-fullstack-java-react-services-financiers-ile-de-france-3","title":"Tech Lead Fullstack Java React - Services Financiers - Ile-De-France","company":{"id":52881,"name":"Sopra Steria","domain":"soprasteria.com","url":"https://alion.io/company/soprasteria","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"SmartRecruiters","truth_index":{"grade":"B","score":75,"open_postings":386,"ghost_share":0,"stale_share":0.992,"repost_share":0,"time_to_fill_p50_days":28,"computed_at":"2026-11-03T05:54:40Z"}},"role":"Backend","role_family":"Backend","seniority":"lead","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Paris, France"],"countries":["FR"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":49000,"max_usd":88000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":74},"experience_years_min":10,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Apache Kafka","optional":false},{"name":"CI/CD","optional":false},{"name":"Docker","optional":false},{"name":"GitLab CI","optional":false},{"name":"Grafana","optional":false},{"name":"Helm","optional":false},{"name":"Java","optional":false},{"name":"Jenkins","optional":false},{"name":"Jest","optional":false},{"name":"Kubernetes","optional":false},{"name":"Kustomize","optional":false},{"name":"Material UI","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Prometheus","optional":false},{"name":"React.js","optional":false},{"name":"Redux Toolkit","optional":false},{"name":"Rest API","optional":false},{"name":"Spring Boot","optional":false},{"name":"SQL","optional":false},{"name":"TypeScript","optional":false},{"name":"JavaScript","optional":true},{"name":"Redux","optional":true}],"status":"live","first_seen_at":"2026-09-22T07:49:43Z","employer_posted_date":"2026-10-01","last_verified_at":"2026-11-03T08:56:13Z","board_verified":true,"closed_at":null,"days_open":42,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":42},"description":"Sopra Steria, acteur majeur de la Tech en Europe, avec 51 000 collaborateurs dans près de 30 pays, est reconnu pour ses activités de conseil, de services et solutions numériques. Il aide ses clients à mener leur transformation digitale et à obtenir des bénéfices concrets et durables. Le Groupe apporte une réponse globale aux enjeux de compétitivité des grandes entreprises et organisations, en combinant une connaissance approfondie des secteurs d’activité et des technologies à une approche collaborative. Sopra Steria place l’humain au cœur de son action et s’engage auprès de ses clients à tirer le meilleur parti du numérique pour construire un avenir positif. En 2024, le Groupe a réalisé un chiffre d’affaires de 5,8 milliards d’euros.\nThe world is how we shape it*\n Votre rôle et mission :\nPrendre la responsabilité technique d’un périmètre applicatif complet (backend + frontend), encadrer les développeurs, définir l'architecture, sécuriser les bonnes pratiques et garantir la performance, la maintenabilité et la scalabilité des applications distribuées Java / React.js.\nResponsabilités clés\nArchitecture & Conception\nConcevoir des architectures cloud-ready en microservices (Java 17+, Spring Boot 3+).\nDéfinir les standards : patterns, DDD (facultatif), conventions API, normes de sécurité.\nChallenger les choix techniques, valider les orientations stratégiques avec l’architecture.\nTraduire les besoins métier en solutions techniques robustes et scalables.\nLeadership & Delivery\nEncadrer 4 à 10 développeurs (coaching, montée en compétences).\nGarantir la qualité du code : revue systématique, pair/mob-programming.\nPiloter la roadmap technique, gérer la dette, orchestrer les releases.\nAssurer la continuité de service : supervision, performances, disponibilité.\nBackend - Java (expert)\nDéveloppement de microservices Java 17+ / Spring Boot 3+.\nArchitecture event-driven : Kafka impératif.\nConception et maintien d’API REST, gestion du versioning, performance.\nStockage SQL (PostgreSQL / Oracle), optimisation de requêtes, transactions.\nSécurité : OAuth2, OIDC, JWT, RBAC, durcissement des endpoints.\nFrontend - React.js\nDéveloppement SPA avec React 18+, TypeScript, Redux Toolkit.\nIntégration Design System (interne, Material UI ou équivalent).\nGestion d’état complexe, optimisation du rendering & hydration.\nMise en place de tests : Cypress, Jest.\nDevOps / Qualité\nPipelines CI/CD avancés : GitLab CI / Jenkins, artefacts Docker.\nDéploiement Kubernetes (Helm / Kustomize).\nObservabilité : Grafana, Prometheus, ELK, traces distribuées.\nPratiques d'ingénierie : Clean Code, TDD, couverture automatisée.\n Vous êtes diplômé(e) d'une école d'Ingénieur ou d'une formation Universitaire ou équivalent.\n7 à 10 ans d’expérience minimum dont 2+ ans en rôle de Tech Lead.\nExpertise démontrée en Java + React.js sur des systèmes critiques.\nCapacité à concevoir une architecture complète (backend + frontend).\nMaîtrise avancée de Kafka, microservices, CI/CD, conteneurisation.\nHabitué(e) aux environnements à forte volumétrie ou forte complexité.\n Un accord télétravail pour télétravailler jusqu’à 2 jours par semaine selon vos missions. \nUn package avantages intéressant : une mutuelle, un CSE, des titres restaurants, un accord d’intéressement, des primes vacances et cooptation.\nDes opportunités de carrières multiples : plus de 30 familles de métiers, autant de passerelles à imaginer ensemble.\nPlusieurs centaines de formations accessibles en toute autonomie avec Sopra Steria Academy.\nLa possibilité de s'engager auprès de notre fondation ou de notre partenaire « Vendredi ».\nL'opportunité de rejoindre le collectif Tech'Me UP (formations, conférences, veille, et bien plus encore…).\nEmployeur inclusif et engagé, notre société œuvre chaque jour pour lutter contre toute forme de discrimination et favoriser un environnement de travail respectueux. C’est pourquoi, attachés à la mixité et à la diversité, nous encourageons toutes les candidatures et tous les profils.\nhttps://www.soprasteria.fr/nous-connaitre/nos-engagements","description_format":"text","description_chars":4034,"description_truncated":false,"requirements":{"experience_years_min":10,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"French","level":"Advanced (C1)","optional":false}]},"benefits":[],"hiring_locations":[{"name":"France","iso":"FR","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Financial Services","Bakery & Pastry","IT Outsourcing & Dedicated Teams","Custom Software Development"],"lifecycle":[{"event":"open","at":"2026-09-23T22:18:52Z"}],"visa":[],"liveness":{"score":24,"band":"cold","label":"Long shot","p_open":1,"p_active":0.547,"p_room":0.44,"age_days":41,"expected_fill_days":28,"reasons":["conf:1","stale_co","velocity","win:tail","crowd:brand"],"computed_at":"2026-11-03T05:54:40Z"},"pay":null,"html_url":"https://alion.io/job/sopra-steria-tech-lead-fullstack-java-react-services-financiers-ile-de-france-3","json_url":"https://alion.io/job/sopra-steria-tech-lead-fullstack-java-react-services-financiers-ile-de-france-3.json","meta":{"generated_at":"2026-11-03T09:04:03Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":12995,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-04T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":52881},"rest":"https://alion.io/mcp/rest/get_company?id=52881"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fsopra-steria-tech-lead-fullstack-java-react-services-financiers-ile-de-france-3"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fsopra-steria-tech-lead-fullstack-java-react-services-financiers-ile-de-france-3"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fsopra-steria-tech-lead-fullstack-java-react-services-financiers-ile-de-france-3"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/sopra-steria-tech-lead-fullstack-java-react-services-financiers-ile-de-france-3\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fsopra-steria-tech-lead-fullstack-java-react-services-financiers-ile-de-france-3"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":1157781}},{"tool":"search_jobs","arguments":{"company":"soprasteria.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":1157781},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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