About Célestin
French
Native or bilingual
English
Fluent
Italian
Conversational
Experience
- TransgourmetBackend & AI EngineerAGRICULTUREOctober 2024 - Today (1 year and 10 months)Valenton, FranceDesign 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
- Hammurabi DroitCo-founder & CTOSeptember 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
- AxioneWeb EngineerJune 2023 - July 2024 (1 year and 1 month)Malakoff, FranceDesign 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
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Education
- MasterInstitut Polytechnique de Paris2022IA, Informatique
- EngineerENSTA Paris2022Mathématiques, Informatique, IA, Robotique, Mécanique, Physique Quantique,
Certifications
- Set up an API with Django REST FrameworkOpenclassrooms2022