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Benoit GasnierBG

Benoit Gasnier

Fullstack JavaScript/TypeScript Developer

€500/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Benoit

Hello 👋

I design and develop SaaS platforms and complex web applications, from the first line of code to production.

My main expertise focuses on custom web and mobile application development, where I transform client needs into high-performing and perfectly integrated applications.
I have notably developed applications for Hermès, the Ministry of the Interior, and Certigo: e-learning, automatic invoicing, scheduling management, business workflows, role and permission systems.

How I can help you:
Create your SaaS, CRM, and ERP product or web platform: Robust architecture, modern stack (React, Next.js, Node.js), and product vision for a scalable result.
Develop your custom application: Whether it's a private or public app.

Looking for a developer who combines strategic vision with sharp technical expertise? Let's discuss your project.

Portfolio: https://palatun.com
Skills:
✅ Fullstack Developer
✅ React / Next.js
✅ Node.js / TypeScript
✅ Software Architecture
  • French

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • Satuclean
    Fullstack JS Developer
    SOFTWARE PUBLISHING
    March 2026 - April 2026 (1 month)
    Paris, France
    Creation of a showcase website optimized for all screen sizes, with SEO optimization, integration of an online appointment booking system synchronized with Google Calendar, and development of a custom CRM.
    Configure automatic deployments to ensure fast and efficient production releases.
    Implement conversion tracking using Google Ads and Plausible, allowing measurement and optimization of their advertising campaign performance.
    Next.js cal.com api TailwindCSS SEO Typescript
  • Igocreate
    Fullstack JS Developer
    SOFTWARE PUBLISHING
    December 2024 - March 2026 (1 year and 3 months)
    Paris, France
    Development of web and mobile applications for various clients (Certigo, Ministry of the Interior, Hermès).

    - Design and development of user interfaces
    - Creation of an e-learning platform, adding automatic invoicing, scheduling management, product management, document management, role and permission management.
    - Workflows and business logic (states, rules)
    - Data-heavy interfaces (tables, filters, search, exports)
    - API development
    - Code optimization through unit tests

    - Database integration and performance optimization
    - Direct collaboration with clients to understand and translate their needs into technical solutions
    Next.js Node.js Express PostgreSQL Pennylane
  • Arkone
    Fullstack JS Developer
    SOFTWARE PUBLISHING
    September 2024 - November 2024 (2 months)
    Puteaux, France
    Creation of the showcase website for the Point S congress.
    Creation of the registration form website (Partner and member) for the congress.
    Creation of a back office for managing activities, seating plans, and transportation for the congress.
    Creation of a tablet app for organizing the Wordskills.
    Express React.js Node.js MongoDB Typescript

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Education

  • MASTER SOFTWARE ARCHITECT AND APPLICATION DEVELOPER SPECIALIZING IN AI
    Epitech
    2024

Skill set

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