{"id":2024606,"url":"https://alion.io/job/catamania-data-scientist-senior-ia-generative-llm","title":"Data Scientist Senior – IA Générative / LLM","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":"AI/ML","role_family":"AI/ML","seniority":"senior","employment_type":"freelance","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Tours, France"],"countries":["FR"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":40000,"max":45000,"currency":"EUR","period":"year","gross":null,"usd_annual":50637},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"Gemini","optional":false},{"name":"LLM","optional":false},{"name":"Machine Learning","optional":false},{"name":"NLP","optional":false},{"name":"NumPy","optional":false},{"name":"RAG","optional":false},{"name":"Scikit-learn","optional":false}],"status":"live","first_seen_at":"2026-08-31T15:12:38Z","employer_posted_date":null,"last_verified_at":"2026-08-31T15:12:38Z","board_verified":false,"closed_at":null,"days_open":58,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":58},"description":"Dans le cadre du renforcement d’une équipe Data & Intelligence Artificielle, nous recherchons un Data Scientist expérimenté pour intervenir sur un projet stratégique d’IA Générative à forte valeur métier.\nTu reprendras des travaux déjà engagés autour d’une solution capable de générer automatiquement des pré-réponses à des sollicitations clients, avec un fort enjeu de pertinence, de performance et d’industrialisation.\nTes missions principales :\nReprendre et poursuivre les travaux Data Science déjà engagés\n\nConcevoir, évaluer et optimiser des solutions basées sur des Large Language Models (LLM)\n\nAméliorer les mécanismes de Retrieval-Augmented Generation (RAG)\n\nTravailler sur la pertinence et la qualité des réponses générées\n\nParticiper à l’intégration et au déploiement des modèles en production\n\nMettre en œuvre les bonnes pratiques MLOps / LLMOps\n\nIndustrialiser le versioning, le monitoring et le déploiement des modèles\n\nAnalyser les performances et identifier les axes d’amélioration\n\nCollaborer avec les développeurs, Product Owners, architectes et équipes Data\n\nParticiper aux rituels Agile de l’équipe\n\nAssurer une veille active sur les évolutions en IA Générative, NLP et Machine Learning\n\nDocumenter les développements et architectures réalisés\n\nProfil recherché\nTu es Data Scientist Senior, avec au minimum 5 ans d’expérience et une expérience concrète sur des projets d’IA Générative, NLP ou LLM.\nTu es capable de reprendre rapidement un environnement existant, de challenger les choix techniques et de proposer des solutions robustes pouvant être industrialisées.\nCompétences attenduesExcellente maîtrise de Python\n\nSolides compétences en Machine Learning / NLP\n\nExpérience significative sur les LLM\n\nConception, évaluation et optimisation de modèles\n\nExpérience sur des architectures RAG\n\nMaîtrise de LangChain\n\nConnaissance de LangGraph\n\nExpérience MLOps / LLMOps\n\nExpérience des environnements Cloud\n\nBonne connaissance des API et architectures applicatives\n\nEnvironnement techniquePython\n\nPandas / NumPy / Scikit-learn\n\nTensorFlow / PyTorch\n\nHugging Face Transformers\n\nLangChain / LangGraph\n\nGemini / Vertex AI\n\nMistral\n\nPGVector\n\nCloud Run\n\nLangfuse\n\nReact\n\nAPIs Python\n\nAtouts appréciésExpérience avec Gemini via Vertex AI\n\nExpérience avec Mistral\n\nMaîtrise de PGVector\n\nConnaissance des problématiques d’observabilité LLM\n\nConnaissance de Langfuse\n\nCompréhension de l’architecture hexagonale\n\nNotions de React pour faciliter les interactions avec les équipes frontend\n\nExpérience dans des environnements soumis à de fortes contraintes de sécurité et de confidentialité\n\nQualités attenduesAutonomie et proactivité\n\nForte capacité d’analyse\n\nRigueur\n\nCuriosité technologique\n\nCapacité à prendre en main rapidement un existant\n\nTrès bon relationnel\n\nCapacité à travailler avec des équipes métiers et techniques\n\nForce de proposition\n\nAdaptabilité","description_format":"text","description_chars":2871,"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":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-10-07T13:04:23Z"}],"visa":[],"liveness":{"score":5,"band":"cold","label":"Long shot","p_open":0.4,"p_active":0.458,"p_room":0.28,"age_days":58,"expected_fill_days":13,"reasons":["seen:58","velocity","win:tail","crowd:brand"],"computed_at":"2026-10-29T05:49:05Z"},"pay":{"stated_usd_annual":50637,"is_top_pay":false},"html_url":"https://alion.io/job/catamania-data-scientist-senior-ia-generative-llm","json_url":"https://alion.io/job/catamania-data-scientist-senior-ia-generative-llm.json","meta":{"generated_at":"2026-10-29T06:57:48Z","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":10577,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-30T00:00:00Z"}},"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":183709},"rest":"https://alion.io/mcp/rest/get_company?id=183709"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fcatamania-data-scientist-senior-ia-generative-llm"},{"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%2Fcatamania-data-scientist-senior-ia-generative-llm"},{"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%2Fcatamania-data-scientist-senior-ia-generative-llm"},{"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/catamania-data-scientist-senior-ia-generative-llm\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fcatamania-data-scientist-senior-ia-generative-llm"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":2024606}},{"tool":"search_jobs","arguments":{"company":"catamania.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":2024606},"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. Docs: https://alion.io/developers"}}