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I will build or fix rest apis with aspnet core
Mikhail Y
About this gig
I will build, extend, or fix REST APIs using ASP.NET Core and C#.
I can help with:
- Creating new API endpoints
- Fixing bugs in existing ASP.NET Core APIs
- CRUD operations
- Entity Framework Core integration
- PostgreSQL or SQL Server
- DTOs, validation, and error handling
- API refactoring and small backend improvements
- Docker setup for .NET applications if needed
I focus on clean, maintainable code and clear communication.
Please contact me before ordering if your task is larger or requires work with an existing complex codebase, so I can estimate the scope correctly.
Get to know Mikhail Y
Mikhail Y
- FromPoland
- Member sinceSep 2025
- Avg. response time1 hour
Languages
English, Russian, Polish
I am a Software Developer with experience in C#, .NET Core (MVC, Entity Framework), and Angular. I have completed projects integrating APIs, building web applications, and creating full-stack solutions.
Some of my works include:
A working prototype for Opera Lublin. (ASP.NET WebApi + Angular)
A Platform for Organization Events (ASP.NET WebApi + Angular)
A Password Manager project with secure data handling
I can help you with backend andfrontend development, bug fixing, API integration, and small- to medium-scale applications.
FAQ
Can you work with an existing ASP.NET Core project?
Yes. I can review your existing codebase, fix bugs, add endpoints, or implement small backend features. Please contact me first if the project is large or complex.
Which databases do you work with?
I can work with PostgreSQL and SQL Server using Entity Framework Core.
Can you create a complete REST API from scratch?
Yes, for small or medium-sized APIs. For larger projects, please contact me before ordering so I can estimate the scope and suggest a custom offer.
Do you provide source code?
Yes. The completed source code is included with the delivery.
Can you fix API bugs or errors?
Yes. I can troubleshoot issues related to endpoints, Entity Framework Core, database access, validation, DTO mapping, error handling, and other backend problems.
Can you add authentication or authorization?
Yes, depending on the scope. Please contact me before ordering if your task involves JWT authentication, roles, or authorization logic.
Can you work with Docker?
Yes. I can help with Dockerizing an ASP.NET Core application or adjusting an existing Docker setup. For larger deployment tasks, please contact me first.
What do you need from me before starting?
Please provide a short task description, relevant source code or repository access, expected behavior, and any error messages or screenshots that may help reproduce the issue.
