{"id":2024300,"url":"https://alion.io/job/e2e-delivery-senior-python-engineer-ia-generative-llm-hf","title":"Senior Python Engineer IA Générative / LLM (H/F)","company":{"id":3908593,"name":"E2E 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le cadre d’un projet stratégique au sein d’un acteur majeur du secteur des paiements, nous recherchons un Senior Python Engineer spécialisé en Intelligence Artificielle Générative (LLM).\nVous interviendrez au sein d’une équipe dédiée au développement d’une plateforme IA générative en environnement on-premise.\nLe rôle est fortement orienté développement logiciel et architecture applicative : nous recherchons un profil capable de concevoir, développer et industrialiser des applications IA en production.\nVos principales responsabilités :\nConcevoir et développer des applications backend Python intégrant des modèles de langage (LLM).\n\nDévelopper des APIs robustes avec FastAPI (ou frameworks équivalents).\n\nConcevoir des architectures RAG (Retrieval-Augmented Generation) performantes.\n\nMettre en œuvre les mécanismes d’ingestion documentaire, chunking, embeddings et recherche sémantique.\n\nIntégrer et orchestrer différents modèles LLM (GPT, Mistral, Claude ou équivalents).\n\nDévelopper des composants exploitables en production avec une approche qualité logicielle.\n\nParticiper aux choix d’architecture technique et aux bonnes pratiques de développement.\n\nMettre en place les pratiques de qualité : tests, revue de code, Clean Code, documentation technique.\n\nCompétences attendues\nTechniques\nPython confirmé (développement applicatif backend)\n\nFastAPI / Flask / Django\n\nDéveloppement d’API REST\n\nArchitecture backend et microservices\n\nLLM : GPT, Mistral, Claude, OpenAI API, Anthropic API\n\nRAG (Retrieval-Augmented Generation)\n\nLangChain, LlamaIndex ou frameworks équivalents\n\nEmbeddings et recherche sémantique\n\nBases vectorielles : Qdrant, Pinecone, Weaviate, Chroma ou équivalent\n\nPostgreSQL / bases de données relationnelles\n\nDocker\n\nCI/CD\n\nTests automatisés\n\nGit et pratiques de revue de code\n\nSavoir-être\nEsprit d’analyse et capacité à résoudre des problématiques complexes\n\nAutonomie et force de proposition\n\nSens de la qualité logicielle\n\nCapacité à travailler dans un environnement exigeant\n\nBon relationnel avec les équipes techniques et métiers\n\nCuriosité technologique et veille active sur les évolutions IA\n\nProfil recherché\nNous recherchons un développeur Python senior ayant évolué vers l’IA générative.\nLe candidat idéal possède une solide expérience en développement logiciel backend et a déjà participé à la conception ou au déploiement d’applications utilisant des LLM.\nCe poste ne correspond pas à un profil Data Scientist ou Data Analyst orienté étude/modélisation statistique, mais à un Software Engineer capable de construire des plateformes IA robustes et industrialisées.\nExpérience attendue :\nMinimum 5 ans en développement Python\n\nExpérience concrète sur des projets IA générative en production\n\nMaîtrise des architectures applicatives modernes\n\nCapacité à intervenir sur les choix techniques et l’industrialisation\n\nEnvironnement de travail\nPlateforme IA générative développée en interne\n\nEnvironnement sécurisé on-premise\n\nArchitecture backend Python\n\nApplications basées sur LLM et RAG\n\nCulture forte autour de la qualité de code et de l’industrialisation\n\nMéthodes Agile\n\nCollaboration avec équipes techniques expertes","description_format":"text","description_chars":3159,"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":[],"lifecycle":[{"event":"open","at":"2026-10-07T13:04:23Z"}],"visa":[],"liveness":{"score":16,"band":"cold","label":"Long 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