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Nicolas R.NR

Nicolas R.

Senior .Net Developer | C#

€600/day
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Nicolas

If you are looking to hire an experienced, versatile .Net/C# developer (or Lead) capable of mentoring junior profiles, you've come to the right place!

I have been a .Net|C# developer for over 14 years, specializing in the Backend | WEB API Rest part.

I have worked with various renowned clients in their fields, such as:

- CDiscount (Logistics APIs for parcel and purchase order tracking)
- Continental (Web application with a game mechanic to boost partner sales)
- Lectra (Windows Service to update manufacturer tools at client sites worldwide)
- Hager (Backend development for the communication of connected objects in home electrical installations)

I prioritize transparency and a good relationship with my clients and the teams I work with.
I enjoy being proactive, whether in technical or business aspects, as well as in project management to help optimize production processes.

I can support you with:
- Defining your needs through business consulting
- Developing your .Net/C# applications
- Project monitoring
- Mentoring junior profiles

Being specialized in Backend, I am also fully open to working with front-end frameworks like React.Js | Angular or Blazor.

Main Soft Skills:

- Adaptability
- Sense of responsibility
- Team spirit / Mutual aid / Leadership
- Communication
- Autonomy
- Organization and rigor

Availability: immediate
Location: IDF 95-93-92-75 (Hybrid) / Bordeaux (Full remote with potential relocation in the medium term) / France (Full remote)
  • French

    Native or bilingual

  • English

    Conversational

Can work on-site
Paris (up to 50km), Bordeaux (up to 50km), Lyon (up to 50km), Marseille (up to 50km), Toulouse (up to 50km)

Experience

  • Link MOBILITY
    Freelance .Net Consultant
    TELECOMMUNICATIONS
    June 2025 - Today (1 year)
    => Technical architecture redesign - Code restructuring - Refactoring - Creation of Nuget packages
    June 2025 - Present

    => Creation of a Windows service for automated email sending with reminder management based on business needs

    => Creation of a Windows service following the migration of an existing system, enabling management of the SMS / Email / RCS campaign creation gateway - Process automation - CSV and proprietary file management - FTP / SFTP flow management (standard authentication / certificate) - Data encryption and signing

    Technologies / Environment:
    o .NET 10 / C# / X-unit
    o SQL Server
    o Bitbucket / GIT
    o Clean architecture / Clean code
    .NET C# SQL Server Clean Architecture xUnit
  • Elior Group
    Freelance .Net Consultant
    RESTAURANTS AND FOOD SERVICE
    March 2024 - October 2024 (7 months)
    Courbevoie, France
    => Front/Back/SQL development for automated or manual customer email sending to receive registration codes for mobile applications.
    => Front/Back/SQL (stored procedure) development for monthly penalties on user meal registrations.
    => Front/Back development for global penalty settings for a contract.

    => Regular meetings with the business side to understand needs, estimate feasibility, propose solutions, and translate requirements technically.

    => Technical and user documentation

    Technologies / Environment:
    o ASP.NET (WebForm) / ASP.NET (MVC) / C#
    o SQL Server / T-SQL / Stored Procedures
    o Devops / GIT
    C# .NET SQL SQL Server DevOps
  • CDiscount
    Freelance Lead .Net / React JS Consultant
    E-COMMERCE
    January 2023 - December 2023 (11 months)
    Bordeaux, France
    Various Front/Back evolutions of applications managing hangar exit purchase orders.

    Audit and reverse engineering of the parcel tracking asset as part of a redesign of the existing system. (Technical discussions with managers, presentation of the situation, comparative documentation between the existing system and the desired technical target).

    Design and development.

    Training and mentoring of Junior profiles:
    - weekly one-hour meeting to provide training on clean architecture, CQRS, MediatR, Clean Code, and REST API creation
    - follow-up on code reviews in 1-on-1 as needed
    - pair programming
    - daily tech cafés

    Unit Tests / Integration Tests (Specflow) / End-to-End Tests (Postman/Newman)

    o .NET Core / C# / React JS / REST API / Entity Framework
    o CQRS / MediatR / XUnit
    o JWT/oAuth2
    o MongoDB/ Kafka / Kafka Connect
    o ElasticSearch / Grafana
    o GIT
    o Scrum
    React.js noSQL CQRS MediatR .NET C#

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Education

  • Master 2 - Computer Engineering Management
    ESIEE-IT
    2015
  • University Diploma in Technology (BTS) in Business Computing
    IFA ROBERT DELOROZOY
    2012
    BTS Informatique de Gestion - BAC +2

Certifications

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