I will fix bugs and errors in your csharp dotnet application

Q
quintenbuilds
Q
quintenbuilds
Quinten W
4.7
4.7

About this gig

Your build fails, an endpoint returns 500, EF Core throws an exception you have never seen before, or something works locally but breaks in production. I find the cause and fix it.


WHAT I WORK WITH

C# and .NET 6/7/8/9/10, ASP.NET Core, Entity Framework Core, Web APIs, Blazor, SQL Server and PostgreSQL, Azure deployments.


HOW IT WORKS

1. Message me the error message or stack trace, the steps to reproduce it, and your .NET version.

2. I confirm I can help and you place the order.

3. You share the repository or the relevant files.

4. You get the fix plus a short explanation of what went wrong.


WHY ME

I am a software engineering student in the Netherlands, close to graduating, and I have been building .NET backends for years. I work fast, I explain what I changed instead of handing you a black box, and I will tell you honestly when a problem is bigger than a quick fix.


NOT INCLUDED

New features, full rewrites, .NET Framework below 4.8, or projects without a reproducible error.


Not sure if your issue fits? Send me a message first. I answer quickly and I will say no if I am not the right person for it.

Get to know Quinten W

Quinten W

Software Engineer

4.7(1)
  • FromNetherlands
  • Member sinceSep 2026
  • Avg. response time1 hour
  • Last delivery1 week
  • Languages

    English, Dutch, German, French
I am a final-year Computer Science and Software Engineering student at University of applied sciences Windesheim. I have multiple years of experience working as a software engineer and doing projects for company's. I had my own company set up using Azure as backend deployement and ASP .NET as framework for the backend. I am specialized in .NET and Azure environments, but I am also experienced in PHP Laravel, AWS and Docker. I primarily work with GitHub, but I am open to work with any git (or similar) environment (GitLab, DevOps, etc.).

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Reviews

1 reviews for this Gig
4.7

(1)
(0)
(0)
(0)
(0)
Rating Breakdown
  • Seller communication level
    5
  • Quality of delivery
    5
  • Value of delivery
    4
Sort By
Most relevant
  • S

    sophie_bruye

    NL

    Netherlands

    4.7

    Fast delivery, had time for 2 days and got it within 4 hours. Code quality is good and got a profesisonal explanation within the pull request. Replied within 15 minutes. Added them to the git repo and it was done. Would order again!

    $50

    Price

    1 day

    Duration

    Helpful?
    Yes
    No
Reviews

1 reviews for this Gig
4.7

(1)
(0)
(0)
(0)
(0)
Rating Breakdown
  • Seller communication level
    5
  • Quality of delivery
    5
  • Value of delivery
    4
Sort By
Most relevant
  • S

    sophie_bruye

    NL

    Netherlands

    4.7

    Fast delivery, had time for 2 days and got it within 4 hours. Code quality is good and got a profesisonal explanation within the pull request. Replied within 15 minutes. Added them to the git repo and it was done. Would order again!

    $50

    Price

    1 day

    Duration

    Helpful?
    Yes
    No