I will develop asp net core web API, rest API and backend for your web app


About this gig
Need a reliable backend that powers your web or mobile application?
Whether you're building a startup, SaaS platform, business application, or mobile app, a secure and scalable backend is essential for smooth performance and future growth.
I develop ASP.NET Core Web APIs and backend solutions that help businesses connect frontends, manage databases, secure user authentication, and integrate third-party services with clean, maintainable code.
What I can help you with:
- ASP.NET Core Web API Development
- REST API Development
- Backend Development for Web & Mobile Apps
- SQL Server Database Design & Integration
- Entity Framework Core (EF Core)
- JWT Authentication & Authorization
- CRUD Applications
- Third-Party API Integration
- Payment Gateway Integration
- Bug Fixing & API Optimization
- Existing ASP.NET Core Project Improvements
Whether you need a new backend, want to connect your frontend to a REST API, improve an existing ASP.NET Core project, or fix backend issues, I'm here to deliver a solution that fits your business needs.
Please contact me before placing an order so we can discuss your requirements and choose the best package for your project.
Get to know Husna Sarwar
Full Stack Developer
- FromPakistan
- Member sinceJan 2026
- Avg. response time1 hour
Languages
English
My Portfolio
Other Software Development Services I Offer
FAQ
Do you develop REST APIs in ASP.NET Core?
Yes, I develop secure and scalable RESTful APIs using ASP.NET Core.
Can you integrate SQL Server databases?
Yes, I can design, optimize, and integrate SQL Server databases.
Do you implement authentication?
Yes, I can implement JWT authentication, user registration, login, and role-based authorization.
Can you work with an existing project?
Absolutely. I can add features, fix bugs, optimize APIs, or improve existing backend systems.
Do you provide API documentation?
Yes, API documentation can be included in Standard and Premium packages.
What technologies do you use?
I primarily develop backend solutions using ASP.NET Core, C#, Web API, Entity Framework Core, SQL Server, REST APIs, and JWT Authentication. I can also integrate third-party APIs based on your project requirements.
Can you build the backend for my React, Angular, Flutter, or mobile app?
Yes. I can develop a secure REST API backend that works with React, Angular, Flutter, React Native, Android, iOS, and other frontend technologies.
Can you fix bugs in my existing ASP.NET Core project?
Absolutely. I can debug, optimize, and improve existing ASP.NET Core Web API projects, fix performance issues, and add new features.

