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Zakaria DarrahZD

Zakaria Darrah

Web Developer .NET | C#

€550/day
1 project
Lyon, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Zakaria

Looking for a .NET / C# developer?
You've come to the right place.

I am a software engineer with over4 years of experienceand a specialist in.NET / C#development.

I have worked in various sectors such as banking and insurance, the public sector, energy…
I have collaborated with companies such asTotal Energies,ADENES,La Région…

I am able to:
- Develop and maintain desktop applications
- Design, develop, and maintain back-end functionalities in line with business needs
- Participate in the writing of detailed technical specifications
- Analyze the impact of product design on the IT technical architecture
- Develop and maintain back-end functionalities in .NET, C#, Winforms, ASP.NET
- Implement back-end / Frontend refactoring or version migrations
- Implement software architecture (Microservices, MVC, MVVM) code quality
- Develop APIs
- Implement CI / CD
- Write technical documentation
- Develop and maintain front-end functionalities in Winforms, ASP.NET
- Develop and maintain desktop functionalities in Winforms
- Participate in refactoring, continuous improvement, and code review contribution
- Perform unit and integration tests to ensure
- Implement relational databases (SQL and Oracle).

I also have knowledge of Angular, PHP, Sharepoint, Azure DevOps.

My commitment:

End-to-end support, from defining the need to deployment.
Total transparency: you receive a daily report on project progress.

Do you have a project?

Let's discuss your project! Contact medirectly on the platform.

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backend dotnet ASP.NET Core .NET Core WPF CSharp back end LINQ Entity Framework Winforms frontend Azure SQL Server Git backend Sinequa Angular Typescript front end
  • French

    Native or bilingual

  • English

    Fluent

  • Italian

    Conversational

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

Experience

  • NEXITY
    C# .Net Developer
    REAL ESTATE
    March 2025 - June 2026 (1 year and 3 months)
    Lyon, France
    Nexityis one of the leading French real estate groups, specializing in residential real estate services and solutions. The group supports its clients throughout the entire real estate lifecycle through property management, transaction, and administration activities.

    I am involved in the maintenance and evolution of an internal real estate management tool covering the entire business cycle, from mandate creation to invoicing. I also participate in the progressive modernization of a legacy application developed in ASP.NET Web Forms towards more recent .NET technologies, within an Agile environment.

    đź›  Key Achievements:
    Application Maintenance in .NET C# / ASP.NET Web Forms: Correction of critical bugs, performance improvements, and optimization of the stability of a business application used by operational teams.

    Functional Evolution of the Real Estate Tool: Development and improvement of features related to mandate management, client files, property tracking, and invoicing.

    Technical Modernization: Participation in the progressive migration of certain parts of the application to more recent .NET technologies to improve maintainability, performance, and system longevity.

    Automation of Business Processes: Implementation of improvements and automations to limit manual tasks, reduce errors, and streamline internal workflows.

    Support and Incident Management: Analysis and resolution of application incidents, tracking of corrective requests, and user support to ensure service continuity.

    Technical Context: .NET C#, ASP.NET Web Forms, ASP.NET, SQL Server, Entity Framework, LINQ, Git, legacy architecture, application modernization, Agile Scrum methodology.
    C# .NET Back-End Development ASP.NET MVC .NET C#
  • ADENES
    C# .Net Developer
    BANKING AND INSURANCE
    January 2024 - February 2025 (1 year and 1 month)
    Lyon, France
    ADENESis a French group specializing in insurance-related services, particularly claims management and technical expertise. It generates a turnover of 290 million euros, handles approximately 900,000 claims per year, and employs 2,800 people.

    I participated in the automation and optimization of data entry processes, the development of new features related to interfaces for interaction with experts, and the implementation of security protocols and regulatory compliance.

    đź›  Key Achievements:


    **Application Maintenance in .Net C#**: Correction of critical bugs and performance optimization, aiming to improve the stability and responsiveness of the application in production.



    **Support and Incident Management**: Handling of anomalies and ticket tracking to ensure service continuity and user satisfaction.



    **Claims Management Feature**: Design and implementation of an automated claims management module, reducing processing time and improving operational efficiency.



    **Decision-Making Dashboards**: Development of dynamic dashboards for business teams to monitor and analyze key indicators.



    **Automation of Business Processes**: Implementation of automated validation processes, reducing manual interventions and limiting human errors.



    **Client Communication**: Regular presentation of projects to clients, ensuring transparency, agile management, and alignment with business needs.


    During this14-monthmission, the modernization of tools led to reduced processing times(-22%)and increased operational team productivity **(+11%)**.



    **Context**: .Net C# Winforms WPF frontend Azure SQL Server Git backend dotnet ASP.NET Core .NET Core CSharp, back end, LINQ, WCF Entity Framework
    C# .NET C# .NET .NET Framework ASP.NET Core
  • TotalEnergies
    C# .NET Developer (Sinequa)
    ENERGY AND UTILITIES
    March 2023 - December 2023 (9 months)
    Lyon, France
    This mission was carried out for **TotalEnergies**, a major energy player, as part of the implementation of an enterprise search engine (**Sinequa**). The objective was to facilitate access to data for employees by offering them an advanced and personalized search experience.

    My main role was to design, develop, and configure the application, ensuring its proper functioning and meeting the evolving needs of internal users.

    đź›  Key Achievements:


    **Sinequa Implementation in .Net C#**: Integration of the Sinequa solution with the necessary tools to enable efficient and personalized searching within the company.



    **Interface Development in Angular**: Creation of user and administrator interfaces, with particular attention to ergonomics and responsiveness.



    **Maintenance and Development in .Net C#**: Development of features and fixes in C# to ensure the stability and continuous evolution of the search engine.



    **Incident Management and Support**: Handling of incidents and tracking of maintenance tickets to ensure service continuity.



    **Performance Optimization**: Configuration and monitoring of performance tests to improve the search engine's responsiveness and ensure a smooth user experience.



    **Client Presentations**: Demonstration of projects during client meetings, managing emergencies, and handling critical requests to ensure optimal responsiveness.


    During my one-year mission, the tool helped streamline internal document search, increase user responsiveness **(+67%)**, and effectively centralize information sources within the company.



    **Context**: .Net C# Angular Typescript backend frontend fullstack API SQL Server Git backend dotnet ASP.NET Core .NET Core WPF, CSharp back end LINQ Entity Framework Sinequa
    Sinequa C# .NET C# .NET Back-End Development

Recommendations

Aser P.AP
MD
Aser P. and 1 other person have recommended Zakaria

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Education

  • Full Stack Developer, Computer Programming, Specific Applications
    M2i
    2020
    Developpeur Full Stack, Programmation informatique, applications spécifiques
  • State Diploma (DÉ) Level 5, Computer Programming
    3W Academy
    2019
    Diplôme d'État (DÉ) de niveau 5, Programmation informatique

Certifications

  • Computer Engineering Degree
    M2I Formations
    2020
    C# Software Architecture C# Development C# .NET Development Web Developer Back-End Development Web Application .NET .NET C# C# .NET Developer

Skill set

Categories