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I will develop rest apis and fix bugs in asp net core and mssql
Foyzul Abrar C.
About this gig
Are database bottlenecks, broken API endpoints, or routing errors slowing down your .NET application? Let's fix them permanently.
Hi, I'm Foyzul, a Backend Software Engineer specializing in C#, ASP.NET Core, and Microsoft SQL Server. With extensive enterprise experience building scalable e-commerce platforms and complex data pipelines, I don't just patch bugsI identify root causes to ensure your system's long-term stability and performance.
What I Offer (Bug Fixing & Development):
- API Debugging & Development: Fixing broken endpoints, building secure REST APIs, and resolving routing/middleware issues.
- Database Optimization: Troubleshooting MSSQL deadlocks, optimizing slow T-SQL queries, and fixing complex stored procedures.
- Third-Party Integrations: Debugging payment gateways, logistics webhooks, and third-party APIs.
- Legacy Code & UI: Resolving backend dependency errors and data-binding issues with JavaScript/jQuery.
My Core Tech Stack:
- Backend: C#, ASP.NET Core / MVC, ADO.NET, LINQ
- Database: MSSQL, T-SQL, Redis
- Frontend & Reporting: JavaScript, jQuery, Crystal Reports, RDLC
Why Work With Me?
- Clean, production-ready, and fully documented code
- Precise problem-solving and fast commun
Get to know Foyzul Abrar C.
Foyzul Abrar C.
Full Stack Software Engineer ASP DOT NET Core and API Specialist
- FromBangladesh
- Member sinceMar 2020
- Last delivery2 years
Languages
English
Hi, I'm Foyzul. I am a backend-focused Software Engineer specializing in C#, ASP.NET Core, and Microsoft SQL Server. With over 6 years of experience building enterprise-grade applications, I specialize in developing scalable REST APIs, optimizing complex database procedures, and handling seamless third-party integrations (including Shopify, payment gateways like bKash/SSLCOMMERZ, and logistics webbooks). Whether you need custom backend architecture, database optimization, or reliable API development, I deliver robust, production-ready solutions. Let's discuss your project!
Other Software Development Services I Offer
FAQ
What do you need from me to start working on a bug fix?
I will need access to your source code (via GitHub, Bitbucket, Azure DevOps, or a zipped file), database schema/scripts if applicable, and a detailed description or video showing how to reproduce the bug.
My project is complex and doesn't fit the standard packages. Can you still help?
Absolutely! Please send me a message with your specific project requirements, and I will create a custom offer tailored to your complex backend, database, or API integration needs.
Will you sign a Non-Disclosure Agreement (NDA)?
Yes, I am fully open to signing an NDA. I frequently work with proprietary enterprise systems, e-commerce platforms, and payment gateways, so I take data security and confidentiality very seriously.
Do you only work with ASP.NET Core, or do you also support older .NET applications?
I have extensive experience with both modern ASP.NET Core and legacy ASP.NET MVC applications. Just let me know which version your application is running on when you message me.
Do you handle frontend UI changes or React/Angular migrations?
My primary expertise is in backend engineering (APIs, Database optimization, Business Logic). However, I can handle UI debugging within .cshtml views, JavaScript, and jQuery when it is directly related to a backend issue.
