Browse categories
Explore
Fiverr Pro
English
$
USD
I will develop, fix, or optimize asp net core web apis and sql server
Irfan A
About this gig
Need to develop a new ASP.NET Core application, fix an existing issue, or optimize your Web API for better performance?
You've come to the right place!
I'm Irfan, a Dot Net Full Stack Developer with 2+ years of professional experience building secure, scalable, and high-performance web applications. I have worked on enterprise and healthcare systems, developing and maintaining 450+ REST API endpoints using ASP.NET Core, C#, SQL Server, Entity Framework Core, Dapper, JWT Authentication, and third-party API integrations.
Whether you're starting a new project, adding new features, fixing bugs, or improving the performance of an existing application, I can help.
My services include:
Develop ASP.NET Core Web Applications
Build REST APIs & Web APIs
Fix ASP.NET Core & C# Bugs
API Integration (Third-Party APIs)
JWT Authentication & Authorization
Entity Framework Core & Dapper
Performance Optimization
Existing Project Maintenance & Enhancements
Clean, Secure & Scalable Code
Why choose me?
2+ Years of Professional Experience
Enterprise & Healthcare Project Experience
450+ REST API Endpoints Developed & Maintained
Clean, Maintainable & Production-Ready Code
Get to know Irfan A
Irfan A
Full Stack Dot NET Core and React Developer
- FromPakistan
- Member sinceNov 2025
- Avg. response time1 hour
Languages
English
Full Stack .NET Core & React Developer with 5+ years building secure, scalable web apps for enterprise and healthcare systems.
I specialize in ASP.NET Core REST APIs, React.js frontends, SQL Server database design, and JWT authentication — delivering clean, production-ready code.
I take time to understand your requirements first, so the final product actually solves your problem.
Message me with your project details — I'll respond within a few hours.
My Portfolio
FAQ
Can you work on an existing ASP.NET Core project?
Yes. I can work on existing ASP.NET Core applications, fix bugs, add new features, optimize performance, refactor code, and improve SQL Server queries without affecting your current functionality.
Can you develop a complete ASP.NET Core application from scratch?
Absolutely. I can build complete ASP.NET Core web applications, REST APIs, SQL Server databases, authentication systems, and integrate third-party APIs based on your requirements.
What do you need before starting my project?
Please provide your project requirements, source code (if available), error details or screenshots, API documentation, database access (if required), and any specific deadline or expectations.
Can you fix urgent bugs?
Yes. If you have an urgent issue, please send me a message before placing an order so I can review the issue and confirm my availability.
Do you provide API integration services?
Yes. I can integrate third-party APIs such as payment gateways, authentication providers, email services, SMS services, cloud services, and other REST APIs.
Do you work with existing codebases or legacy projects?
Yes. I can work on existing ASP.NET Core applications, understand the current architecture, fix issues, add new features, refactor code, and improve performance without disrupting your application.
Which technologies do you specialize in?
I specialize in ASP.NET Core, C#, SQL Server, REST APIs, Entity Framework Core, Dapper, JWT Authentication, React.js, API Integration, and performance optimization.
Should I contact you before placing an order?
Yes, I recommend sending me a message before placing an order. This allows us to discuss your requirements, estimate the scope, and ensure you choose the right package for your project.
