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Marvin CohenMC

Marvin Cohen

Full Stack Ruby on Rails | AI & LLM | Web MVP

€340/day
Bordeaux, FR
0-2 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Marvin

🚀 Do you have a web project to launch, an MVP to build, or an existing application to enhance with AI? I transform your ideas into functional, deployed, and ready-to-use solutions.

Integrating AI into a concrete product is what I do: LLMs, content generation, text-to-speech, image generation. I connect these components to your applications to create real value, not just demos.

✔️ Development of complete MVPs (back + front)
✔️ AI & LLM Integration (Claude, GPT, OpenAI) into your projects
✔️ Ruby on Rails + React / Vue.js Applications
✔️ REST APIs, Stripe payments, production deployment
✔️ Web application redesign and modernization

What sets me apart: I'm operational on both sides of the stack AND on the AI components — a rare profile that allows for fast, friction-free delivery.

đź’¬ Clear and regular communication throughout the project
⚡ Quickly available — remote or Bordeaux / Nouvelle-Aquitaine
🎯 Delivery-oriented: I deliver code that runs in production

Personal project: Noctilio — a micro-SaaS for AI-generated children's stories (Claude + ElevenLabs + FLUX), designed and deployed autonomously. It's the best reflection of my work style.

Stack: Ruby on Rails, React.js, Node.js, Anthropic Claude, GPT, ElevenLabs, fal.ai/FLUX, Stripe, PostgreSQL, Heroku, Railway.

Describe your need in a few lines — we'll figure out the best approach together.
  • French

    Native or bilingual

  • English

    Conversational

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

Experience

  • Noctilio
    Founder & Full Stack Developer
    SOFTWARE PUBLISHING
    March 2026 - Today (5 months)
    Bordeaux, France
    Conception and development of an AI-powered children's story generation micro-SaaS. Integration of three AI APIs (Anthropic Claude, fal.ai/FLUX, ElevenLabs), Stripe subscription management, full-stack deployment. Project currently launching.
    Anthropic Claude Ruby on Rails React.js ElevenLabs Stripe
  • Teams-Up
    Co-founder & Full Stack Developer
    SPORTS
    January 2026 - Today (7 months)
    Bordeaux, France
    Co-creation of a web application for finding or creating local sports matches. Full-stack development in a team of 4 (Ruby on Rails, PostgreSQL, Mapbox, Stimulus). Project management with GitHub Projects, code reviews, production deployment on Heroku.
    Ruby on Rails GitHub PostgreSQL JavaScript Agile Methodology
  • Le Wagon
    Full Stack Developer — AI Software Engineer
    January 2026 - March 2026 (2 months)
    Bordeaux, France
    • • Development of full-stack web applications (HTML, CSS, JavaScript, Ruby on Rails).
    • • Feature design, database modeling, CRUD implementation.
    • • Working in an Agile environment, Git/GitHub, code reviews, and pair programming.
    • • Application deployment and adherence to best practices (clean code, MVC).
    Ruby on Rails JavaScript HTML5/CSS3 MySQL database-management

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Education

  • Le Wagon Bordeaux — AI Software Engineer / Web Application Designer Developer (RNCP) — 2026
    Le Wagon
    2026

Certifications

Skill set

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