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Nicolas MitchellNM

Nicolas Mitchell

AI Engineer | PoC RAG, AI Agents & LLM Audit

€750/day
15 projects
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Nicolas

I help startups, SMEs, and product/data teams quickly validate a generative AI use case: RAG documentary assistant, business AI agent, structured extraction, automatic summarization, or LLM API.

My ideal format: short remote missions, audits, or PoCs in 2 to 10 days, compatible with a need for quick scoping before a more significant investment.

In parallel, I am an AI Engineer at Société Générale CIB, where I work on AI solutions used by several dozen applications, with about 100,000 monthly predictions.

I therefore intervene with a dual approach: rapid prototyping and production vision.

Typical missions:

RAG/GenAI Audit - 2 to 5 days
Architecture analysis, retrieval quality, prompts, hallucinations, security, costs, monitoring, and prioritized recommendations.
Deliverable: summary report and concrete action plan.

Documentary Assistant PoC - 5 to 10 days
Functional prototype on your documents: ingestion, vectorization, search, response generation, API, and simple interface.
Deliverable: functional demo and industrialization recommendations.

Business AI Agent - 5 to 10 days
Automation of a simple workflow: request qualification, summarization, structured extraction, or report generation.
Deliverable: testable prototype and defined next steps.

Stack: Python, FastAPI, LangGraph, FAISS, Milvus, Kubernetes (GKE, AKS), Azure OpenAI

Available for short remote missions, mainly evenings and weekends, at a rate of 8-12 hours/week
  • French

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • Société Générale - CIB
    AI & Machine Learning Tech Lead
    BANKING AND INSURANCE
    July 2021 - Today (5 years and 1 month)
    Paris, France
    Design and industrialization of artificial intelligence solutions in production within an international banking environment.

    Technical lead of an internal machine learning platform enabling the deployment and operation of large-scale models (several dozen applications, ~100,000 monthly predictions).

    Involvement in:

    - Development of data processing pipelines (batch and real-time)
    - Deployment and orchestration of ML models
    - Integration of generative AI solutions (LLM, RAG)
    - Design of APIs for business applications
    - Close collaboration with business teams to identify and implement use cases
    LLM RAG FastAPI Kubernetes AI Agents
  • Juisci SA
    AI Engineer Freelance
    HEALTH AND WELLNESS
    February 2021 - April 2026 (5 years and 2 months)
    Paris, France
    Design and development of data and artificial intelligence solutions as a freelancer.

    Setup of a complete RAG pipeline:

    - Document ingestion and transformation
    - Vectorization and search (Milvus – Zilliz Cloud)
    - Orchestration via LangGraph
    - API exposure

    Deployment of scalable services on Kubernetes (GKE) and development of full-stack applications integrating AI functionalities.
    RAG LLM Kubernetes FastAPI NestJs
  • Carbon IT
    Full-Stack Developer & Data Engineer
    DIGITAL AND IT
    June 2018 - June 2021 (3 years)
    Paris, France
    Long-term mission at Société Générale Corporate & Investment Banking.

    Development of web applications and data services in a modern technical environment:

    - Front-end development (React, TypeScript)
    - Back-end and API development (Python)
    - Setup of containerized solutions (Docker, Kubernetes)
    - Participation in internal data projects and pipelines
    Kubernetes NestJs React.js FastAPI

Reviews

4.7

Out of 9 ratings

MichelM

Michel

Cider

Reviewed on 4/6/2020

Nicolas proved to be responsive and dynamic. The script I asked him for fully meets our expectations.
ThibaudT

Thibaud

Vendre Mon Bien

Reviewed on 8/19/2019

Excellent provider: efficient, responsive, and immediately understood our needs. We recommend without reservation.

Recommendations

TD
Bruno PacciniBP
JG
Tugdual De Kerviler and 2 other people have recommended Nicolas

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Education

  • General Engineer
    Télécom SudParis (Engineer)
    2015
    Enseignements avancés - Niveau Master - en Mathématiques, Informatique, Réseaux et Physique

Skill set

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