You will get I will fix and optimize your ASP.NET Core backend API
Project details
Get a focused ASP.NET Core backend issue investigated and fixed without unnecessary rewrites. I will trace the problem, identify the root cause, apply a maintainable C# fix, and verify the affected API path. Depending on scope, I can address endpoint behavior, validation, dependency injection, Entity Framework Core, SQL Server integration, or related backend code. You receive clear handoff notes and tested changes.
Programming Languages
ASP.NET, C#What's included
| Service Tiers |
Starter
$65
|
Standard
$160
|
Advanced
$300
|
|---|---|---|---|
| Delivery Time | 2 days | 4 days | 7 days |
Number of Revisions | 1 | 2 | 3 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code | - | - | - |
About Toka
Backend .NET Developer | ASP.NET Core Web API | REST APIs
Shibin al Kawm, Egypt - 9:15 am local time
I can help you:
- Build secure REST APIs and CRUD features
- Fix existing ASP.NET Core backend issues, runtime errors, dependency injection problems, and database bugs
- Implement JWT authentication, refresh tokens, and role-based authorization
- Design SQL Server databases with Entity Framework Core
- Integrate payment, notification, storage, AI, and other third-party APIs
- Add real-time features with SignalR
- Improve performance, validation, logging, and maintainability
My backend work follows Clean Architecture, dependency injection, clear separation of concerns, and documented APIs with Swagger/OpenAPI. I use HttpClientFactory for external services and structured error handling so systems are easier to test, operate, and extend.
I have built backend functionality for SaaS platforms, academic systems, e-commerce workflows, delivery apps, and AI-powered applications, including branches, camps, subscriptions, products, orders, enrollment, payments, asset storage, and notifications.
Selected technologies:
C#, .NET 8, ASP.NET Core Web API, RESTful APIs, Entity Framework Core, SQL Server, JWT, SignalR, Redis, Stripe, Swagger/OpenAPI, FluentValidation, AutoMapper, Git, and GitHub.
If you need a new API, a focused backend feature, an integration, or a practical fix to an existing .NET system, send me the requirements and current setup. I will help define a clear scope and implementation plan.
Steps for completing your project
After purchasing the project, send requirements so Toka can start the project.
Delivery time starts when Toka receives requirements from you.
Toka works on your project following the steps below.
Revisions may occur after the delivery date.
Review the issue
Reproduce the bug, review logs and the affected code path, and confirm the expected behavior.
Apply the focused fix
Implement and test a maintainable fix across the relevant API, validation, DI, data access, or SQL Server code.