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Romain MacureauRM

Romain Macureau

Expert Python/AI Senior

€750/day
1 project
Caen, FR
8-15 years

Average response time: 1 hour

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About Romain

Expert Generative AI (Python/LangChain/LangGraph/LLMs/RAG) and backend development. Over 15 years of experience. I transform your business needs into robust and scalable technical solutions.

🚀 Available quickly

🤖 AI & AUTOMATION
🔹 Generative AI architectures: RAG, LangChain, LangGraph, autonomous agents, vectorization, MCP
🔹 LLM Integration: OpenAI, Anthropic (Claude), Mistral
🔹 AI solutions in production (content generation, document analysis)
🔹 Python/FastAPI Backend: APIs, microservices
🔹 Advanced prompt engineering, vectorization
🔹 Business process automation (n8n, workflows, LangGraph)

⚙️ BACKEND & CLOUD
🔹 Python/FastAPI, Node.js, TypeScript
🔹 PostgreSQL, Redis, distributed architecture
🔹 AWS/Scaleway Cloud, Docker, CI/CD
🔹 Security, payment processing, payment systems

💼 REFERENCES & ACHIEVEMENTS
✓ AI solutions in production: MyMountain (quote generation, Chatbot, complex agent systems), Opena (website creation)
✓ Nov@lis, Orange Labs, Ingenico: critical systems

🎯 IDEAL PROFILE FOR
→ Generative AI projects (RAG, chatbots, agents)
→ Robust Python backend (APIs, microservices)

💡 MY STRENGTHS
✓ AI Expertise
✓ Backend Expertise
✓ Fullstack Expertise
✓ Fast delivery and production quality
✓ Autonomous: from design to deployment
✓ Agile/Scrum Methodology
✓ Clear and proactive communication

📍 AVAILABILITY
- Quick start
- Long-term missions preferred (6-12 months)

Looking for an AI/Python expert for your GenAI project?

Contact me. Guaranteed response within 24 hours. 🚀
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Caen (up to 50km), Lisieux (up to 50km), Falaise (up to 50km), Bayeux (up to 20km)

Experience

  • MyMountain SAS
    Lead Developer & Fullstack Architect
    TECH
    August 2025 - Today (10 months)
    Montpellier, France
    🏗️ Complete architecture of a quote generation SaaS
    🤖 Development of specialized AI solutions (RAG, vectorization, LangChain, LangGraph)
    ⚙️ Backend development (Python, FastAPI, Node.js) and frontend (Angular)
    ☁️ Creation and security of cloud and server architectures
    📧 Mail server administration and security (Postfix, Dovecot)
    🖥️ Administration of test, pre-production, and production servers
    📊 System monitoring and optimization
    AI Automation Lead Developer Tech Lead Fullstack IT Architecture
  • Opena
    Lead Developer & Fullstack Architect
    SOFTWARE PUBLISHING
    May 2024 - Today (2 years and 1 month)
    Caen, France
    🏗️ Complete architecture of a website creation SaaS
    🤖 Development of specialized AI agents (RAG, n8n, LangChain)
    ⚙️ Backend development (Node.js, APIs) and frontend (React, Angular)
    ☁️ Creation and security of network and server architectures
    🔗 API Integration (OpenAI, Anthropic, Mistral)
    🐳 Docker, Redis, Ollama infrastructure
    📊 System monitoring and optimization
    Langchain Lead Developer Tech Lead Fullstack IT Architecture
  • Carrefour
    Senior Android Developer
    RETAIL (LARGE RETAILERS)
    November 2022 - Today (3 years and 7 months)
    Massy, France
    📱 Development on the Carrefour Android app (millions of users)
    🏗️ Clean Architecture and design patterns
    ⚙️ Development of new critical features
    🔧 Maintenance, bug fixes, and application stabilization
    ✅ Development of unit and integration tests
    👥 Agile/Scrum methodology in a multidisciplinary team
    🛠️ Stack: Kotlin, Jetpack Compose, Clean Architecture
    Kotlin Jetpack Compose Clean Architecture Android Agile Method

Reviews

5.0

Out of 1 rating

A

Anis

Expert IA/LLM & Backend Python - Architecture SaaS - My Mountain

Reviewed on 1/6/2026

Romain developed our entire MyMountain SaaS with impressive technical expertise: Python/FastAPI backend, Node.js admin interface, AI integration (Mistral, OpenAI, Anthropic, with LangGraph), document vector processing (PostgreSQL/pgvector), and secure multi-tenant architecture. He designed a powerful agent orchestrated with LangGraph, connected to multiple tools (Gmail, Contacts, WhatsApp, Calendar...) via custom MCP servers. The architecture combines email intelligence, automated document processing, and intelligent quote generation, while respecting GDPR and European data sovereignty (Scaleway/OVH). His pragmatic architectural vision prioritizes simplicity and performance: multi-stage pipelines optimizing LLM costs, always justified technical decisions, and maintainable, documented code. Extremely responsive, autonomous, and proactive, Romain combines full-stack technical expertise with product vision. I highly recommend him for any complex SaaS project requiring AI agent orchestration and multiple integrations.

Recommendations

YS
Grégory GhezGG
RB
Yanis Sg and 2 other people have recommended Romain

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Education

  • DUT informatique, option systèmes embarqués
    IUT Informatique Caen
    2007
    Développement objet, java, C, SmallTalk80. Bases de données Oracle, procédures, triggers.
  • Ingénieur en informatique, monétique et sécurité des systèmes
    ENSICAEN
    2010
    Développement objet, java, PHP, cartes à puces, bases de données, plateformes bancaires, sécurité informatique

Skill set

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