Freelancer profile translated to English.

Description

Your devs code faster with AI. But do you deliver faster?

I'm Samuel, a freelancer since 2012. I help startups, SMEs, and large corporations unlock the real bottleneck: not the code, but the strategy, specs, and architecture.

🛠️ What I do concretely

- **Strategy & AI Training**: AI maturity audit, practical workshops (Claude Code, Cursor, AI agents), support for initial projects

- **AI Development**: LLM chatbots, RAG systems, automated development pipelines, intelligent content generation

- **Specs & Architecture**: Testable specifications, precise acceptance criteria, sprint contracts between humans and AI

- **Review & Quality**: Automated verification pipelines, independent evaluation agents, compliance dashboards

Most recently at Warner Bros. Discovery, I worked on the backend powering TNT Sports and Eurosport (editorial CMS + sites/apps).

I implemented AI in products (Roland Garros **chatbot**, automatic **content generation**, taxonomy suggestions, etc...)

In parallel, I drove the integration of AI into teams and products.

My clients: Warner Bros. Discovery, Renault, Bouygues Telecom, SNCF, Safran, Ministry of Defence, Dalkia.

🚀 My Side Projects

- Umbreon (umbreon.io): Agile retrospective SaaS, 18+ languages, 2,000+ retros completed

- lefreelance.fr: Independent media for freelancers with AI writing pipeline

Stack: TypeScript, React, Node.js, GraphQL, AWS, Terraform

AI: Claude (Anthropic), GPT (OpenAI), Gemini (Google), RAG, LLM, Claude Code, Codex, Cursor

Industry field of expertise

Languages

French
Native or bilingual
English
Fluent

Workplace preferences

Can work on-site

Paris (up to 50km)

Eurosport
Fullstack Developer NodeJS GraphQL React
SPORTS
March 2020 - Today (6 years and 5 months)
Issy-les-Moulineaux, France
Backend powering the websites and mobile applications of TNT Sports and Eurosport, reaching millions of users worldwide.

My key contributions:
- Architecture and development of the editorial CMS used by all journalists to produce and publish sports content
- Integration of AI tools: automated SEO title/description generation, relevant link suggestions in articles, chatbot
- Setup of CI/CD architecture on AWS (CloudFormation, Terraform)
- TDD and testing culture: unit, integration, and end-to-end tests (Jest, Cucumber, Playwright)
- Production monitoring: Sentry, Apollo Studio, AWS CloudWatch

Stack: React, NextJS, TypeScript, GraphQL, AWS, Terraform, PostgreSQL, MongoDB, MSSQL
Next.js GraphQL Terraform LLM RAG
Umbreon.io
Fullstack Developer
SOFTWARE PUBLISHING
October 2017 - Today (8 years and 10 months)
Paris, France
Development of a collaborative application enhancing remote team communication by enabling the initiation of activities (retrospective, planning poker, votes, whiteboard, etc.) and inviting participants.

Full project execution (development, marketing, design, support). Project prototyping in Meteor.js, then development in ReactJs and GraphQL

🏷️ NodeJs, Apollo GraphQL, AWS Lambda/SQS/SES/S3, MongoDB, Stripe, ReactJs, Styled, Jest, Enzyme, Cypress, GatsbyJs
React.js Apollo Amazon Web Services MongoDB Stripe Connect
Renault
Technical Leader / Scrum Master
AUTOMOBILE
January 2017 - February 2020 (3 years and 2 months)
Guyancourt, France
Within a team beginning an agile transformation, development of an application based on the Planisware software package to manage the Vehicle production plan.

Development of various components around the Planisware software package used to manage the Vehicle production plan and engineering projects (SOAP/REST bridge, CLI, front-end portals...).
Implementation of agile practices within the team and facilitation of various rituals (sprint planning, daily scrum meeting, sprint review, and retrospective)
Operational monitoring of the team and facilitation of follow-up and steering committees

🏷️ Express, AWS S3, HTML5, CSS3, Jira, SVN, Linux, Ansible, Apache, Planisware, Oracle, Postgresql, Mysql, OIDC, OAUTH2
Amazon Web Services Ansible Oracle PostgreSQL OAuth