Freelancer profile translated to English.
Back to original languageAbout Maximilien
Senior full-stack developer (+10 years of experience), I act as a Forward Deployed Engineer (FDE). I immerse myself in your stack to design, stabilize, and operate AI architectures in production. My focus: run and scale.
Most GenAI projects fail at scale (out-of-control costs, technical debt, data leaks). I industrialize your platforms through 3 levers:
1. Agentic Architectures & Production
- Complex Agents : Design of multi-agent platforms based on the MCP (Model Context Protocol) or APIs (A2A interactions, SSE streams, Live Sockets).
- Acceleration : I bring proven industrial and secure architecture patterns (multi-tenant) from the field to stop reinventing the wheel and accelerate your time-to-market.
2. Sovereignty & Self-Hosting (Private AI)
- Models : Fine hybridization between major APIs (OpenAI, Anthropic) and cutting-edge Open Source models (Mistral, Llama, Qwen).
- Infrastructure : Deployment in Self-Hosted environments (Private Cloud / On-Premise) for total impermeability of your business data (GDPR / EU AI Act Compliance).
3. AI FinOps & Cost Control
- Audit & Rescue : Recovery of unstable or financially non-viable GenAI architectures under load.
- Token Optimization : Segmentation into artifacts to eliminate redundant context and calculation of cost per byte to ensure profitability at scale.
My method is pragmatic: I analyze your business, I measure your token consumption byte by byte, I select the right models for the right uses, and I sequence your prompts. Every architectural decision is documented (ADR) so your teams remain 100% autonomous.
Contact me to audit your AI costs or deploy your agents in production.
French
Native or bilingual
English
Fluent
Can work on-site
Paris (up to 50km), Lille (up to 50km), Montpellier (up to 50km), Lyon (up to 50km), Rennes (up to 50km)
Experience
- BimedocSenior Fullstack DeveloperMEDICALJuly 2025 - January 2026 (6 months)Paris, FranceMission to support the resolution of accumulated technical debt and lay the foundation for a sustainable architecture.Audit and refactoring of a Django / Angular application: identification of bottlenecks (pain points), resolution of N+1 SQL query issues, optimization of practices, and significant improvement of response times.Review of the application architecture to promote maintainability, code readability, and facilitate the onboarding of future developers. Implementation of best practices and patterns adapted to the existing ecosystem.In parallel with this consolidation work, I assisted in the implementation of new business features in coordination with product teams, ensuring delivery continuity despite the refactoring project.
- KairosSenior Fullstack DeveloperINTERNET OF THINGS (IOT)February 2025 - January 2026 (1 year)Paris, FranceSupport for an early-stage startup in the design and development of its MVP: an advertising performance analysis platform specifically designed for physical retail.Development of a dashboard in React.js with Redux architecture for state management, enabling fluid manipulation of large data volumes and reliable synchronization between different analytical views.Interface offering advertisers and physical retail networks a clear and actionable view of their key indicators: conversion rates, ROI per campaign, performance by geographic area and by brand.Close collaboration with the founders to translate the product vision into concrete features, prioritize developments based on user feedback, and iterate quickly in a lean startup approach.
- VINCI ENERGIESSenior Fullstack DeveloperENERGY AND UTILITIESMay 2023 - April 2024 (11 months)Paris, FranceDesign and development of a centralized monitoring and surveillance platform for the IT department, providing a unified view of the entire IT infrastructure; several thousand servers, network equipment, and domains, in internal and external environments.Front-end development in React.js with real-time dashboard creation, alert visualization, and administration interfaces. Design of the back-end API in Node.js / Express, including the development of parsing scripts for aggregating and normalizing data from multiple operational sources.Integration of a heterogeneous ecosystem of tools — Cortex, CheckMK, Kubernetes, among others — within a single interface, allowing operations teams to manage the infrastructure transversally and reactively.
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Education
- Bachelor in Web Development & Digital MarketingEEMI2015Conçue par des leaders de l’Internet, l’EEMI a pour vocation de former des collaborateurs performants, créatifs et immédiatement opérationnels. L’objectif est de donner aux étudiants une formation en adéquation permanente avec les besoins des entreprises et en prise directe avec le monde professionnel.