I will develop and fix web application for you in asp dot net core


Level 2
Gig Summary
About this gig
Is your ASP.NET Core or C# web application throwing errors, crashing, or running slow? I'm a Software Engineer with 5+ years of experience fixing bugs, errors, and performance issues in .NET web applications so you can get back up and running fast, without starting over.
As a C# developer specializing in ASP.NET Core, Web API, and SQL Server, I debug and resolve issues in existing codebases, optimize slow database queries, patch security vulnerabilities, and clean up messy legacy code with clear documentation of every fix.
Front-End: HTML5, CSS3, Bootstrap, JavaScript, jQuery,React
Back-End: ASP.NET, .NET Core (up to .NET 7+), MVC, Web API, C#, Entity Framework, ADO.NET, RESTful APIs, Azure DevOps
Database: SQL Server, MySQL
Tools: Visual Studio 2022, CI/CD, clean code with OOP & design patterns
- Message me your bug or error details anytime for a quick assessment or go ahead and order directly if you already know what you need fixed.
Get to know Muhammad Shahid
Quality is Priority
Level 2
- FromPakistan
- Member sinceSep 2020
- Avg. response time1 hour
- Last delivery6 months
Languages
Urdu, English

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FAQ
What kind of bugs or issues can you fix in my ASP.NET Core or C# application?
I handle a wide range of issues — runtime errors, crashes, broken features, slow performance, database query issues, security vulnerabilities, and general bugs in ASP.NET Core, ASP.NET MVC, Web API, and Entity Framework projects. Send me the details and I'll confirm before you order.
Can you also work with older ASP.NET (not just .NET Core)?
Yes. I work across ASP.NET, .NET Core, and the latest .NET versions, so whether your application is on a legacy framework or a modern one, I can debug and fix it.
Do I need to give you access to my codebase or server?
Yes, I'll need access to the relevant code (via GitHub, ZIP file, or similar) and, if the issue involves the live environment, access to staging/hosting or database credentials. Everything is handled confidentially.
Is my code and data kept confidential?
Absolutely. I treat every project as confidential and don't share, reuse, or disclose your code or data. I'm happy to sign an NDA if your project requires one.
How long will it take to fix my bug?
Delivery time depends on the package and complexity of the issue — simple fixes are typically delivered within 2 days, and more complex, multi-bug issues within a few days as outlined in each package.
What if the bug isn't fully fixed after delivery?
Each package includes revisions to make sure the issue is properly resolved. If something's missed, I'll continue working with you until the fix is confirmed working on your end.
Can you fix slow performance or database (SQL Server/MySQL) issues too?
Yes, performance and database-related issues — like slow queries, inefficient Entity Framework calls, or SQL Server/MySQL optimization — are part of what I regularly fix.
Do you provide documentation of what was fixed?
Yes, the Standard and Premium packages include a clear write-up of what caused the bug and how it was fixed, so your team understands the change going forward.
Can I order directly, or should I message you first?
You're welcome to order directly if you already know what needs fixing. If you're unsure about scope or complexity, feel free to message me first with the details for a quick assessment.
Do you only do one-time fixes, or can you help with ongoing maintenance?
While this Gig is focused on fixing specific bugs and issues, I'm also available for longer-term maintenance and support if you need ongoing help with your ASP.NET Core/C# application — just message me to discuss.
5 reviews for this Gig
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
A alessay

Italy
Very good job, I am happy of this collaboration
$50-$100
Price
5 days
Duration
S 
Seller's Response
Helpful?A alessay

Italy
I appreciate to work with him
$50
Price
8 days
Duration
Helpful?J 
jorgeramirez616

United States
Great work even though it was a very complicated task developer came thru and saved the day, thank you !
$50-$100
Price
1 day
Duration
Helpful?B br1993

United States
He completed the works and went above and beyond to make a change in quick amount of time. Very impressive skills. I will be using his services going forward. I highly recommend his work. Thank you again!
$50
Price
10 days
Duration

S 
Seller's Response
Helpful?A aishafarida

United States
Exllect work and expert in his field
$50
Price
2 days
Duration
S 
Seller's Response
Helpful?
5 reviews for this Gig
| (5) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
A alessay

Italy
Very good job, I am happy of this collaboration
$50-$100
Price
5 days
Duration
S 
Seller's Response
Helpful?A alessay

Italy
I appreciate to work with him
$50
Price
8 days
Duration
Helpful?J 
jorgeramirez616

United States
Great work even though it was a very complicated task developer came thru and saved the day, thank you !
$50-$100
Price
1 day
Duration
Helpful?B br1993

United States
He completed the works and went above and beyond to make a change in quick amount of time. Very impressive skills. I will be using his services going forward. I highly recommend his work. Thank you again!
$50
Price
10 days
Duration

S 
Seller's Response
Helpful?A aishafarida

United States
Exllect work and expert in his field
$50
Price
2 days
Duration
S 
Seller's Response
Helpful?