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Yann T.YT

Yann T.

.NET C# Developer | SQL Server - Senior

€550/day
Orléans, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Yann

.NET C# Freelance Developer | REST API | SQL Server

Hello, I am a freelance .NET developer with 20 years of experience, specializing in backend & fullstack C# development. I stand out for my ability to integrate quickly, understand business challenges, and propose concrete and adapted solutions.

My strengths
  • Technical expertise : Mastery of .NET, SQL Server, REST API
  • Autonomy, adaptability : Ability to manage development projects from end to end, from design to implementation, including deployment and maintenance.
  • Problem Solving : Analytical approach to solve complex problems, understand the business, and improve operational processes.
Geography

🚀I work on-site anywhere in France or remotely.

Technical Stack
Visual Studio, C#, VB.NET, SQL Server, .NET, REST API, Swagger, WinForms, ASP.NET, WPF, SSIS, SSMS, Azure, GIT, TFS
  • French

    Native or bilingual

  • English

    Conversational

Can work on-site
Orléans (up to 50km), Bordeaux (up to 50km), Lille (up to 50km), Strasbourg (up to 50km), Paris (up to 50km)

Experience

  • BETCLIC
    BACKEND DEVELOPER .NET 8
    ENTERTAINMENT AND LEISURE
    February 2025 - August 2025 (6 months)
    Bordeaux, France
    Context:
    Within the Horse Racing betting department (TURF), I joined the development team for the sports betting application.

    Assignments:
    • Design and development of REST APIs for the horse racing betting platform (ZETurf): bet registration, race, horse, and jockey exposure.
    • Contribution to CI/CD processes via Jenkins and Docker, with API documentation via Swagger.
    • Collaborative work in an Agile environment with Jira.
    • Code review
    C# .NET Swagger Dapper Docker
  • Malakoff Humanis
    C# .NET / SQL Server Developer
    BANKING AND INSURANCE
    January 2023 - Today (3 years and 5 months)
    Saran, France
    During my time at Malakoff Humanis, I had the opportunity to work on strategic projects related to health expense management, on the Pleiade IS. My role as a .NET / SQL Server developer was to ensure the evolution and optimization of critical applications used for processing reimbursements and managing supplementary health contracts.

    Notably, I developed the highly available REST API that allows for the automatic registration of a dental quote based on the healthcare professional's quote image.
    .NET C# ASP.NET Agile Method Azure DevOps API
  • Thales
    C# .NET Programmer Analyst
    DEFENSE AND MILITARY
    January 2022 - February 2023 (1 year and 1 month)
    Vélizy-Villacoublay, France
    During my assignment at Thales, I worked on the backend of the NCOP application, a key solution for NATO enabling real-time visualization and sharing of critical operational information.

    My role involved designing, optimizing, and securing .NET backend services, aggregating data streams, thereby ensuring the platform's reliability and performance.
    .NET C# Azure DevOps SharePoint SonarQube Web Services

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Education

  • Master in Computer Science
    SUPINFO Orléans
    1997

Skill set

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