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Fiverr Pro
English
$
USD
I will fix bugs and errors in your asp net core c sharp web application
Zahid Mustafa
Level 2
About this gig
Something in your .NET application broke and you need it working today.
Senior .NET engineer with 200+ projects delivered over 13+ years across Fiverr, Upwork, Freelancer and direct clients. On Fiverr: 5.0 rating and zero cancellations. I fix backend problems in ASP.NET Core, ASP.NET MVC, C# and Web API projects, including code other developers left behind.
WHAT I FIX
500 errors, exceptions and crashes. Broken business logic. API endpoints returning bad data. Entity Framework, LINQ and SQL Server query problems. Authentication and JWT issues. Build, migration and deployment failures. Slow pages and slow queries. Third-party API and payment integrations that stopped working.
HOW IT WORKS
Send me the error, a screenshot or repository access. I confirm the real scope and quote honestly before you order. I find the root cause, fix it, and explain what was wrong.
WHAT YOU GET
Working code, the root cause explained in plain language, and source code returned with clear comments.
Message me first with your error details and I will tell you honestly what it will take.
Get to know Zahid Mustafa
Zahid Mustafa
Senior Dot NET Backend Engineer, APIs and Azure
Level 2
- FromPakistan
- Member sinceAug 2015
- Avg. response time1 hour
- Last delivery2 weeks
Languages
Urdu, English
200+ projects delivered over 13+ years across Fiverr, Upwork, Freelancer, direct clients and salaried roles, for companies in the UK, UAE, Saudi Arabia, South Africa and the US.
I build ASP.NET Core APIs and web applications, integrate payment gateways and third-party APIs, and fix backend problems other developers left behind. Recent work: a multi-tenant background-screening platform, a 3PL fulfilment system, and a legacy ASP to .NET rewrite for a US public-safety client.
Message me with your requirement first. I'll tell you honestly what it takes and quote a real scope before you order.
