Groupe Aptenia

Contractor job Backend Python AI Developer

Paris

Groupe Aptenia

Job position

Contractor
As soon as possible
6 months renewable
550-600 €
Hybrid
Paris, France
Published on 26/03/2026

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🔍 Nous recherchons un Développeur Backend Python expérimenté pour renforcer une équipe technique dans un environnement orienté API, intégration de systèmes et workflows métiers.

🎯 Vos missions principales

Développement backend & APIs

  • Conception et développement d’APIs avec FastAPI

  • Structuration du code (clean architecture, modularité)

  • Optimisation des performances et de la scalabilité

Data & intégration systèmes

  • Modélisation des données avec Pydantic (validation, robustesse)

  • Intégration avec des systèmes métiers (APIs externes / internes)

  • Développement de connecteurs et gestion des flux inter-applicatifs

Sécurité & workflows métiers

  • Mise en place de l’authentification (JWT, OAuth2) et gestion des droits

  • Implémentation de logiques métier complexes et traitements asynchrones

  • Mise en place de workflows (human-in-the-loop, orchestration type LangGraph en option)

Candidate profile

🛠️ Stack & compétences clés

⏩ Python (5+ ans) & FastAPI
⏩ Orchestration / IA / LangGraph
⏩ Pydantic / conception d’APIs
⏩ Authentification (JWT, OAuth2)
⏩ Intégration de systèmes & gestion de flux
⏩ Connaissance des architectures backend modernes

Working environment

Mission à Paris, rythme hybride, mission de 6 mois renouvelables

🛠️ Stack & compétences clés

⏩ Python (5+ ans) & FastAPI
⏩ Orchestration / IA / LangGraph
⏩ Pydantic / conception d’APIs
⏩ Authentification (JWT, OAuth2)
⏩ Intégration de systèmes & gestion de flux
⏩ Connaissance des architectures backend modernes

Lyon, Auvergne-Rhône-Alpes
20 - 99 employees
Consultancy firm
𝐀𝐩𝐭𝐞𝐧𝐢𝐚 – 𝐘𝐨𝐮𝐫 𝐄𝐱𝐩𝐞𝐫𝐭 𝐈𝐓 𝐑𝐞𝐜𝐫𝐮𝐢𝐭𝐦𝐞𝐧𝐭 𝐅𝐢𝐫𝐦 Aptenia is a specialized recruitment agency designed to meet the specific needs of companies seeking top talent. Based in London, Paris, and Lyon, we position ourselves as a key player in sourcing rare and strategic profiles. Our mission is to help clients achieve their hiring goals, reduce vacancy downtime, and maximize productivity by quickly finding the right talent. We are committed to building a service that values expertise and understands business challenges. With a proven network of qualified candidates, we connect top technical experts with fast-growing tech companies. 💻 𝐎𝐔𝐑 𝐈𝐓 & 𝐓𝐄𝐂𝐇 𝐄𝐗𝐏𝐄𝐑𝐓𝐈𝐒𝐄 🔒 𝐂𝐲𝐛𝐞𝐫𝐬𝐞𝐜𝐮𝐫𝐢𝐭𝐲 : Risk management, infrastructure protection, and information system security. ☁️ 𝐂𝐥𝐨𝐮𝐝 : Migration, architecture, and infrastructure optimization (AWS, GCP, Azure). 📊 𝐃𝐚𝐭𝐚 𝐒𝐜𝐢𝐞𝐧𝐜𝐞 & 𝐌𝐚𝐜𝐡𝐢𝐧𝐞 𝐋𝐞𝐚𝐫𝐧𝐢𝐧𝐠 : Big Data, analytics, artificial intelligence, and machine learning engineering. 🤖 𝐀𝐫𝐭𝐢𝐟𝐢𝐜𝐢𝐚𝐥 𝐈𝐧𝐭𝐞𝐥𝐥𝐢𝐠𝐞𝐧𝐜𝐞 : Automation, deep learning, and AI solutions. ⚙️ 𝐄𝐑𝐏/𝐂𝐑𝐌 : Expertise in SAP, Salesforce, and Microsoft Dynamics. We recruit within the top 1% to 3% of talent in France, offering a modern and efficient recruitment approach that enables companies to sustain growth and profitability. By choosing Aptenia, you gain a tailor-made approach and a strategic partner to build high-performing and long-lasting teams.

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Backend Python AI Developer

Groupe Aptenia

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