Freelancer profile translated to English.

Description

Senior full stack developer with 10 years of experience, I design and deploy robust web applications for ambitious startups and SMEs.

My specialties:

✅ .NET Core / ASP.NET Core applications development — Clean Architecture, DDD

✅ React / TypeScript / Tailwind CSS / Stimulus front-end — performant and accessible interfaces

✅ Technical SEO — server-side rendering, Core Web Vitals, semantic HTML (experience on high-traffic platforms)

✅ Cloud & DevOps — Azure, Docker, GitLab / Azure DevOps CI/CD

✅ Databases — SQL Server, MongoDB, ElasticSearch

Available for full remote work throughout France, on-site in Ille-et-Vilaine.

🚀 Need a fast showcase website? I also create modern, fast, and well-ranked (100/100 SEO) websites with Astro + Tailwind. Delivery in a few days.

📍 EURL Hormessia — Bruz (35)

Industry field of expertise

Languages

French
Native or bilingual

Workplace preferences

Can work on-site

Rennes (up to 50km)

Hellowork
Full Stack Developer Engineer
SOFTWARE PUBLISHING
March 2026 - Today (3 months)
Rennes, France
Freelance Mission – Full Stack Engineer at HelloWork
HelloWork, JobIntree, Ville-Emplois Applications

Full stack development on several HelloWork group applications, with a strong SEO focus on high-traffic platforms.

Development and optimization of SEO-oriented front-end (semantic HTML, performance, server-side rendering with Razor Pages)
CSS integration and redesign with Tailwind CSS
UX and conversion rate optimization via A/B testing (AB Tasty)
Back-end development in .NET 8 with stored procedures
Implementation of a clean architecture (Presenter pattern, layer separation)
Clean Architecture .NET C# TailwindCSS Stored procedure SEO
HelloWork
Full Stack Developer Engineer
SOFTWARE PUBLISHING
April 2025 - December 2025 (8 months)
Rennes, France
Freelance Mission – Full Stack Developer Engineer at HelloWork
As part of a freelance mission at HelloWork, I worked on the MaFormation application, a product dedicated to training search:

Back-end: development in .NET 8
Front-end: HTML, Razor Pages, Tailwind CSS, Stimulus.js
CSS Redesign: improvement and modernization of the user interface
UX Optimization: implementation and monitoring of A/B tests via AB Tasty
TailwindCSS ASP.NET Core .NET C# Stimulus ABTasty
N2JSoft, (CDI).
Computer Engineer
January 2023 - January 2024 (1 year)
Implementation of a payment control system:
• Implementation of a new Web application in C# .Net Core, clean architecture, DDD, docker

Check out Nicolas's experience

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Embedded Systems Master.
INSSET in Saint Quentin.
2014
Programmation Microcontrôleurs.
PROFESSIONAL DEGREE AII in apprenticeship
P.S.A
2012
LICENCE PROFESSIONNELLE AII en alternance

Fullstack Developer

Nicolas Le Merdy

.NET Full Stack Developer

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