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Ulysse GrosjeanUG

Ulysse Grosjean

AI Fullstack DeveloperđŸ“±đŸŒ Apps & Automations đŸ€–

€550/day
6 projects
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Ulysse

What if your teams (sales, logistics, HR, accounting) could focus solely on what matters most?
I create custom AI tools to automate your processes and save you valuable time.

I specialize in developing business tools that make work easier for your sales, logistics, HR, and accounting teams, saving them time. I help you reach the next level with AI by creating reliable agents that deliver value.

🚀 What I do concretely:
‱ Applications tailored to your business needs (web, iOS/Android mobile)
‱ Automate your time-consuming processes with AI agents (Claude, ChatGPT, N8N)
‱ Take over and improve an existing project that is no longer working
‱ Deploy AI solutions (sovereign if needed with Ollama, Mistral, RAG)

đŸ“± Recent projects & reference clients:
Monoprix — Supply chain logistics management application
Aussitotbon.fr & karmama.fr — Meal delivery applications
Petalertfrance.com — Animal alert platform (50,000+ users)
Octopus Energy — Energy process automations
Luckystay.io, webarak.fr (QVMA-M6), investis.fr — E-commerce & SaaS
Groupe Adùne, CHU — Health projects
App.bisou.co — Dating application
Tote-medical.com — Medical AI chatbot

đŸ› ïž Technical ecosystem:
Front: React, Next.js, TypeScript
Back: Node.js, NestJS, Python
Databases: Supabase / PostgreSQL, MongoDB, MySQL
Cloud & Infra: AWS, Docker, CI/CD, Linux, Bash
AI: RAG, AI agents, Ollama, Claude, ChatGPT, Mistral, intelligent orchestration
Low-code & automations: Bubble, N8N, Make, Zapier

đŸ‘šđŸ»â€đŸ’» Why work with me:
A single point of contact from brief to launch — no intermediaries
Option for 100% France hosting, GDPR compliance mastered, and sensitivity to digital sovereignty
Source code delivered, you retain ownership

📅 Schedule a meeting: calendly.com/odyssai/nouvelle-reunion
🌐 Portfolio: odyssai.net
  • French

    Native or bilingual

  • English

    Native or bilingual

  • Spanish

    Fluent

Can work on-site
Paris (up to 50km), Lyon (up to 100km), Marseille (up to 100km), Bordeaux (up to 100km), Grenoble (up to 100km)

Experience

  • Monoprix
    Full Stack Engineer
    AGRICULTURE
    January 2026 - Today (5 months)
    Paris, France
    Design and development of a logistics tracking platform for Monoprix. Tool to track supplies in real-time from production plants to store reception, with full visibility of flows and delivery alerts. Facilitates the visualization of logistics flows for teams.
    Full-stack Development React.js NestJs CI/CD Microsoft Azure
  • OdyssAI
    Founder
    TECH
    January 2020 - Today (6 years and 5 months)
    Paris, France
    Fullstack Developer & No-Code Expert | Web, Mobile, AI, Automations | React, Bubble, N8N, NestJS
    Creation and development of over 50 web/mobile applications and AI automations for entrepreneurs, SMEs, and large companies.
    Clients: Monoprix, Octopus Energy, Webarak (QVMA-M6), Pet Alert (50k+ users), ToTe-Medical, Groupe AdĂšne.
    N8N Automation AI Agent Mobile Application AI Automation Full-stack Development
  • Octopus Energy France
    Full-stack Developer
    ENERGY AND UTILITIES
    April 2024 - March 2025 (10 months)
    Paris, France
    Implementation of an automation system for sending gift cards to customers who subscribed via Carrefour. Stack: Make (complex scenarios), Retool, Google AppScript and Google Sheets. Over 100,000 cards sent automatically in a few months based on dynamic criteria (status, date, subscription type).
    Design of two video games for seasonal marketing campaigns:
    ○ Bonus Levels: two mini-games (summer & winter) inspired by the style of Google Chrome's "Dinosaur" game, where the goal is to avoid as many obstacles as possible with an Octopus mascot to win discounts. Developed in HTML, CSS, and JavaScript.
    ○ Snowboard Game: a 3D game developed in Three.js, where the player speeds down a mountain collecting maximum coins and performing tricks to be the best on the leaderboard and win rewards.
    Make AppScript API Automation Full-stack Development

Reviews

4.8

Out of 6 ratings

F

François

Fondateur / Développeur Full-Stack - DanceLab

Reviewed on 4/7/2026

Mission completed quickly and efficiently. Ulysse showed great responsiveness and a real diagnostic sense. The bug was identified and fixed without delay, with clear communication at each step. Careful work, clean deliverable. I recommend without hesitation for any technical project requiring rigor and autonomy.
X

Xl

Développeur Fullstack - EMAXX

Reviewed on 3/25/2026

I had the opportunity to collaborate with Ulysse, and I can only recommend his work. He is a particularly efficient full-stack developer, capable of designing and delivering robust web and mobile applications, as well as custom automations perfectly suited to business needs. Beyond his solid technical skills, Ulysse stands out for his execution speed and his ability to solve complex problems pragmatically. He understands the challenges and proposes relevant solutions. He is also attentive, which makes collaboration smooth and enjoyable. He doesn't hesitate to challenge ideas to improve the final product, while remaining results-oriented. In summary, Ulysse is a reliable, competent, and committed professional, with whom it is reassuring to work. I highly recommend him.

Recommendations

Violaine CherrierVC
FU
Chloé BedinCB
+5
Violaine Cherrier and 7 other people have recommended Ulysse

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Education

  • NoCode Bubble Bootcamp #6
    Ottho
    2021
    - Nocode Product : CrĂ©er son application đŸ“Čen M.V.P` - Nocode Design - Nocode SEO - SĂ©curitĂ© et RGPD
  • MSc in Sports Industry Management
    EM Lyon Business School
    2018

Certifications

  • NoCode Bubble Bootcamp #6
    Ottho
    2021
    Bubble User Experience Design Web Design Mobile Application Responsive Design Mobile Design No Code Web Development

Skill set

Categories