You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
Célestin CordosCC

Célestin Cordos

FullStack Engineer | AI, Automation, SaaS

€500/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
Back to original language

About Célestin

Fullstack Developer specialized in AI with dual backend and frontend expertise (Python, Typescript, FastAPI, NextJS). Proven experience in developing generative AI solutions (RAG, LLMs), CI/CD, and cloud. Passionate about distributed systems, semantic search, and deploying intelligent tools.
  • French

    Native or bilingual

  • English

    Fluent

  • Italian

    Conversational

Can work on-site
Paris (up to 50km)

Experience

  • Transgourmet
    Backend & AI Engineer
    AGRICULTURE
    October 2024 - Today (1 year and 10 months)
    Valenton, France
    Design and development of Web services to provide access to databases and AI tools
    • Involved in the backend of a generative AI-powered mobile application project; worked in a team of 10 in agile mode
    • Design of a RAG (semantic search and AI generation) on culinary data: model selection, vector sizing, search method selection. Use of LLMs via Azure cloud
    • Creation of two APIs with FastAPI providing access to culinary data and RAG
    • Creation of data synchronization services between PostgreSQL databases and ElasticSearch clusters
    • Setup of a basic internal Streamlit frontend providing access to the APIs
    • Updates and improvements to CI/CD pipelines using Gitlab, Docker, and Sonarqube, and setup of pre-configured 'type' code repositories for future API developments.
    • Design and management of two PostgreSQL databases
    artificial intelligence Generative AI AI Agent Back-End Development Microservices
  • Hammurabi Droit
    Co-founder & CTO
    September 2023 - December 2024 (1 year and 3 months)
    Hammurabi offers custom legal AI solutions for law firms and notaries.
    • Frontend Development in React/Next with Material UI
    • Backend micro-service Development with FastAPI/Django
    • Creation of AI agents for document research with Langgraph and LLM APIs (OpenAI and compatible, Azure, Mistral, etc.)
    • Cloud deployment (AWS, OVH) with Docker and Kubernetes
    • Deployment of private LLMs in the cloud
    • Setup of data acquisition and processing (cleaning) pipelines
    • Setup of CI/CD pipelines
    Software Architecture Strategic Planning Generative AI AI Chatbot Data Analysis
  • Axione
    Web Engineer
    June 2023 - July 2024 (1 year and 1 month)
    Malakoff, France
    Design and development of a B2B application for fiber optic order taking
    • Creation of a project from scratch in a new team of 4 people; agile work with Jira, 2-week sprints
    • Design of a web application for order taking using DDD principles and Hexagonal Architecture
    • PostgreSQL database modeling
    • Backend Development with FastAPI: creation of API endpoints, implementation of database access functionalities, serialization
    • Deployment with Docker, Gitlab CI/CD pipelines
    • Frontend Development with Next and Typescript: creation of new pages for order taking, integration with the backend API
    FastAPI Full-stack Development PostgreSQL Domain Driven Design Hexagonal Architecture

Recommendations

Be the first to recommend Célestin

Help this freelancer shine by sharing your experience working together.

These freelancer profiles also match your criteria

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Education

  • Master
    Institut Polytechnique de Paris
    2022
    IA, Informatique
  • Engineer
    ENSTA Paris
    2022
    Mathématiques, Informatique, IA, Robotique, Mécanique, Physique Quantique,

Certifications

  • Set up an API with Django REST Framework
    Openclassrooms
    2022
    Django Django Rest Framework Web Development

Skill set

Categories