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Emmanuel ChaffraixEC

Emmanuel Chaffraix

Tech Lead C# .NET & Next.js | Interim CTO

€750/day
Angers, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Emmanuel

🚀 You have a business problem. I build the tool that solves it!


Founder of Galarne and expert developer for 15 years, I intervene where market software is no longer sufficient: when your process is too specific, when Excel reaches its limits, when your teams waste time on tasks that could be **automated**.

What I build

Web apps, SaaS, ERP and custom business software, process automation, APIs and integrations, iOS & Android mobile applications.

Some achievements:
- a complete ERP for the automotive industry,
- automation of industrial processes,
- a SaaS platform for event management from A to Z.

Technical Stack

In addition to being AI-boosted thanks to Cursor and Claude, I master:

- Frontend: React, Next.js, TypeScript
- Backend: C# .NET Core, Node.js, NestJS.
- Cloud: Azure, AWS, GCP, Docker, Kubernetes.
- Databases: PostgreSQL, MSSQL, MongoDB.

Beyond code

Former CTO of Bolden then co-founder of Crafty, acquired by Talentsoft in 2020, I act as Tech Lead or interim CTO: structuring your team, managing your roadmap, preparing for fundraising, auditing your architecture.

References: HSBC, Société Générale, Cegid, Station F and NUMA startups.

Why Galarne

If needed, I have a team of senior experts behind me. A product and technical vision, no dependence on a single person.

Available remotely or in person in Angers, Nantes, Le Mans, Paris, Rennes, and Tours.

CII Approved:benefit from tax credits.
  • English

    Fluent

  • French

    Native or bilingual

Can work on-site
Angers (up to 50km), Nantes (up to 40km), Paris (up to 10km), Rennes (up to 40km), Tours (up to 40km)

Experience

  • Bandyy
    SaaS for Event Management
    TRAVEL AND TOURISM
    June 2024 - Today (2 years and 1 month)
    Angers, France
    Development of a SaaS platform for managing events. The solution supports organizations before, during, and after the event. Whether it's organizing activities for a board meeting, managing an exhibition hall, or a company retreat, the solution adapts to facilitate all stages.

    Stack:
    - Front: Next.js (React), Tailwind, Jest, Cypress
    - Back: C# Core, Entity Framework Core, Postgres
    - Kubernetes, Docker, Container

    Discover: https://www.bandy.fr
    Next.js TailwindCSS Docker PostgreSQL Stripe API
  • SYOS
    Business Tool Maintenance
    LOGISTICS AND SUPPLY CHAIN
    January 2024 - Today (2 years and 7 months)
    Paris, France
    SYOS is the leader in creating Saxophone and Clarinet mouthpieces using 3D printers. As an acoustics expert, they offer highly advanced customization.

    I perform maintenance and development on an internal software suite that automates production planning. Connected to Shopify, printing tasks are created based on orders. Files for 3D printers are located within the library.

    Proactive and solution-oriented, I analyze the business and communicate to ensure their teams increase productivity daily.

    Technical Stack: Next.js, Nest.js, AWS
    Next.js NestJs Fullstack Amazon Web Services
  • MPA
    Business Software for Employees and Clients
    AUTOMOBILE
    March 2023 - Today (3 years and 4 months)
    Angers, France
    Creation of a custom ERP for an automotive logistics company:
    • Management of vehicle entries, recording of remarks and damages
    • Automatic reports to end clients with delivery slips, vehicle details, and any damages
    • Stock management, multi-criteria search, exports
    • Order taking from end clients
    • Workshop scheduling
    • Delivery scheduling via carriers and transporters
    • Exports of billing elements
    Application entirely custom-designed and accessible via a web platform as well as an Android application.

    Technologies used: Flutter, C#, Node.js, PostgreSQL
    Flutter C# Node.js PostgreSQL Docker

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Education

  • Computer Engineering
    EPITA
    2009

Certifications

  • 70-783: Programming in C#
    Microsoft
    2016
    c# ASP.NET MVC

Skill set

Categories