Freelancer profile translated to English.

Description

Back-end developer specializing in C# and .NET, I work on projects ranging from the creation of business applications to the redesign of complex software architectures.

I design and develop robust, maintainable, and performant solutions, adapted to the specific needs of each client.

Areas of expertise:

- Development of REST APIs and business services with ASP.NET / .NET Core

- Desktop applications with WPF

- Redesign, modernization, and maintenance of existing applications

- System integration and communication with hardware

- Data processing and business logic

- Unit tests, code quality, scalability

I work in various contexts, including demanding technical environments (industry, health, R&D, defense...), with an approach focused on quality and efficiency.

Industry field of expertise

Languages

French
Native or bilingual
English
Conversational
Spanish
Basic

Workplace preferences

Can work on-site

Paris (up to 50km)

Editeur de logiciel web
C# .NET backend developer
June 2025 - August 2025 (2 months)
Paris, France
Development, modernization, and maintenance of C# web applications

Involvement in several C# web projects for clients from various sectors.
Tasks performed:

Creation of custom .NET web applications.

Evolutionary and corrective maintenance of applications in production.
Integration of new business features according to specific client needs.
Collaboration with technical and business teams in an agile environment.

Technical environment: C#, ASP.NET (MVC/Web API), SQL Server, JavaScript/HTML/CSS.
C# .NET Developer ASP.NET MVC Microsoft SQL Server REST APIs Agile Method
MVG
C# | .NET | WPF Developer
June 2020 - December 2024 (4 years and 6 months)
Paris, France
Development of software solutions for RF measurement systems

Participation in the development of software dedicated to the control of antenna measurement systems, acquisition and analysis of RF data, within projects for clients from the R&D departments of major groups in the telecommunications, automotive, aerospace, space, and defense sectors...

My main tasks included:
- Communication with hardware systems for controlling measurement instruments.
- Design and implementation of custom RF measurement protocols.
- Development of drivers for specific hardware equipment.
- Processing, visualization, and analysis of measurement data.
- Redesign and modernization of the user interface with WPF (C#).
- Implementation of unit tests to ensure code reliability and maintainability.

This project combined software expertise, mastery of embedded systems, and understanding of the challenges related to demanding R&D technical environments.
C# .NET Developer WPF LINQ ReactiveX Dependency Injection
Web
Backend developer
February 2020 - May 2020 (3 months)
Paris, France
Development of a REST API in Node.js for a job board website

Design and development of a RESTful API in Node.js for the creation of a job board website. The API manages the main functionalities: job postings, applications, users (employers and candidates), as well as authentication and search filters.
The project is part of a modern architecture with a clear front/back separation, facilitating product evolution and integration with different clients (web, mobile, etc.).
Node.js backend web developer REST APIs MySQL Microsoft Visual Studio Agile project management