You will get a critical .NET backend or API issue diagnosed and fixed
Project details
A fast, reliable fix for a critical .NET backend or API issue. I diagnose the root cause, apply a clean and maintainable solution, and verify the fix with clear explanations. Ideal for urgent production problems or hard‑to‑trace errors.
What's included $300
These options are included with the project scope.
$300
- Delivery Time 2 days
- Number of Revisions 0
Optional add-ons
You can add these on the next page.
Fast 1 Day Delivery
+$100
Additional issue (per issue)
(+ 1 Day)
+$250About Robert
Senior C#/.NET Developer | API Bug Fixes | .NET 10 Upgrades | Azure
Sutton Coldfield, United Kingdom - 4:56 pm local time
I help companies fix broken APIs, speed up slow backend services, and modernise legacy .NET systems. Most clients hire me when they need a fast, reliable fix — not a long onboarding process.
If your API is failing, your .NET service is slow, or your migration to .NET 6–10 is stuck, I can diagnose the issue quickly and deliver a clean, maintainable solution.
What I deliver
• Fix API errors, exceptions, and broken endpoints
• Diagnose and resolve performance bottlenecks
• Upgrade .NET Framework to .NET 6–10
• Build or fix Azure Functions, App Services, queues
• Create or repair API integrations
• Debug production issues and reliability problems
Why clients hire me
• Fast diagnosis (usually within 1–2 hours)
• Clear explanations and actionable fixes
• Clean, maintainable code
• No hand‑holding required
• Async‑friendly communication
Tech stack
C# / .NET 6–10, REST APIs, Azure Functions, App Services, SQL Server, EF Core, Clean Architecture, Microservices, CI/CD.
Steps for completing your project
After purchasing the project, send requirements so Robert can start the project.
Delivery time starts when Robert receives requirements from you.
Robert works on your project following the steps below.
Revisions may occur after the delivery date.
Issue reproduction
I will reproduce the error and confirm the failure point
Root‑cause analysis
I trace the underlying cause in the code or configuration