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Benjamin GirardBG

Benjamin Girard

CTO | Fullstack Developer | expert SaaS & product

€400/day
1 project
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Benjamin

Full-Stack Developer & Tech Entrepreneur with 7+ years of experience

I have created and deployed a restaurant management SaaS used by
6+ companies in production. Before that, I spent 6 years at KOSMIK
as Lead Developer, taking the project from prototype to a scalable solution.

What I bring to your projects:
• Rapid delivery of functional MVPs (time-to-market < 3 months)
• Scalable architecture (Firebase, multi-tenant, SaaS)
• Business + technical vision (I founded my own startup)
• Complete ownership: from Figma design to CI/CD deployment
• Consulting on organization and development


🛠️ Tech Stack:
React/TypeScript • Node.js/NextJS • Firebase/Firestore • Docker • GitLab CI/CD • MongoDB

📈 Concrete results:
• 6+ web applications in production
• SaaS with paying and recurring clients
• Complex integrations (WhatsApp API, Stripe payment, OpenAI, Crons)

Do you have a SaaS, MVP, or web application project to launch? Do you need advice to evolve your product?
Let's talk → I respond in less than 1 hour!
  • French

    Native or bilingual

  • English

    Fluent

  • Spanish

    Conversational

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

Experience

  • Ngapi - Lainirolls
    Software Developer & Cook
    RESTAURANTS AND FOOD SERVICE
    January 2025 - Today (1 year and 5 months)
    Nairobi, Kenya
    Founder & Lead Developer

    Creation from scratch of a restaurant management SaaS platform:
    • Multi-tenant architecture with Firebase/Firestore
    • 6+ restaurants using the platform in production
    • Real-time inventory management with automatic stock deduction
    • WhatsApp Business API integration for automatic notifications
    • M-Pesa mobile payment (Kenya market)
    • 28+ backend service modules
    • 145+ React components

    Technologies: React, TypeScript, Firebase, Node.js, Tailwind CSS

    Stack: React 18 • TypeScript • Firebase • Vite • WhatsApp API • M-Pesa
    Business Creation logistics artificial intelligence Vibe coding
  • KOSMIK
    Software Developer
    April 2018 - July 2024 (6 years and 3 months)
    92 Rue d'Aboukir, 75002 Paris, France
    Lead Developer (6 years)

    Lead developer on an innovative collaborative infinite canvas project:
    • Transition from initial prototype to a scalable solution
    • Bare metal architecture and performance optimization
    • Team management and sprint planning
    • Full-stack development with Three.js, React, TypeScript
    • Implementation of CI/CD infrastructure with GitLab
    Project Management Bare Metal Docker Typescript React.js
  • POC
    Association Member
    December 2017 - Today (8 years and 6 months)
    Paris, France
    Innovative association. The aim of this association is to develop prototypes or Proof of Concept for our partners. We pretend to develop ethical and open source softwares.

Reviews

5.0

Out of 1 rating

A

Adrien

Fondateur - Declarimo

Several days project

-

Reviewed on 4/25/2026

I called on Benjamin to take over the maintenance of my web application, and I am very satisfied. He proved to be particularly responsive, proactive, and has excellent communication skills, which greatly facilitated exchanges throughout the mission. I recommend him.

Recommendations

Sébastien VidalSV
Jeremy ThiriezJT
Jonathan BibasJB
Sébastien Vidal and 2 other people have recommended Benjamin

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Education

  • Information Technology
    EPITECH - European Institute of Technology
    2020
    Information Technology
  • Bachelor's Degree, Psychology
    Université Paris Cité
    2015
    Licence, Psychologie

Skill set

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