I will develop c sharp asp net core backend and rest api


Level 1
About this gig
Need a fast, reliable .NET backend that scales under real traffic? I build production-grade ASP.NET Core APIs and C# applications.
I'm a Senior Software Engineer with 7 years in ASP.NET Core, C#, and SQL Server shipping fintech back-office platforms, ERPs, and logistics systems.
What I build:
- ASP.NET Core Web APIs with JWT auth & role-based access
- Microservices and clean, layered architecture
- Entity Framework Core + optimized SQL Server (stored procedures, indexing, tuning)
- Background jobs & automation with Hangfire
- Third-party & payment API integrations with retry and reconciliation
- React.js front ends over secure REST APIs
- Also: SSRS reporting, multi-stage approval workflows, and Docker + CI/CD deployment to AWS or VPS.
Why me:
- 7 years on regulated, approval-driven systems
- Clean, maintainable, well-documented code
- Clear communication and on-time delivery
Message me with your project details for a free scope and quote before you order.
Get to know M Hamza Ahmed
Expert in PHP, Laravel, WordPress WooCommerce to Build Fix Optimize
Level 1
- FromPakistan
- Member sinceJan 2024
- Avg. response time2 hours
- Last delivery1 month
Languages
Urdu, Hindi, English, German, Spanish
My Portfolio
FAQ
Which .NET versions do you work with?
I work across modern .NET — .NET 6, 7, 8, and .NET Core, plus legacy ASP.NET MVC where needed. Tell me your current version and I'll confirm fit before we start.
Do you work on existing projects or only new builds?
Both. I can extend, refactor, or fix an existing ASP.NET Core codebase, or architect and build a new backend from scratch. Share repo access and I'll assess it first.
Can you design and optimize the database too?
Yes. SQL Server is a core strength — schema design, stored procedures, indexing strategy, and query optimization. I can also tune slow queries on an existing database and build SSRS reports.
Do you build the frontend as well?
I build React.js front ends that consume secure REST APIs, so I can deliver full-stack. If you only need the backend and API, that's fine too — I'll ship clean, documented endpoints your frontend team can plug into.
Can you integrate payment gateways and third-party APIs?
Yes. I've integrated trading, portfolio-accounting, and payment/shipping systems with resilient retry logic, error handling, and reconciliation — including Stripe and PayPal.
Do you handle deployment?
I can containerize with Docker and ship through CI/CD pipelines to AWS, VPS, or IIS. Deployment is available as a package extra or included in Premium.
Is my code confidential?
Absolutely. Your code and data stay private and I'm happy to sign an NDA before you share anything.

