You will get a secure multi-tenant SaaS backend API in ASP.NET Core
Project details
As a specialized ASP.NET Core developer, I understand that building a secure, logically isolated multi-tenant B2B SaaS application is critical for your business. I engineer enterprise-grade Web API backends using C# and Entity Framework Core that strictly isolate client data using Global Query Filters. Unlike generic REST APIs, this architecture mathematically prevents cross-tenant data leakage while saving you massive infrastructure costs through a highly efficient shared-database model.
I leverage clean architecture principles, robust JWT authentication, and Swagger documentation to deliver a highly scalable, robust C# backend that is fully ready for production deployment.
I leverage clean architecture principles, robust JWT authentication, and Swagger documentation to deliver a highly scalable, robust C# backend that is fully ready for production deployment.
Programming Languages
ASP.NET, C#Coding Expertise
Localization, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$30
|
Standard
$80
|
Advanced
$300
|
|---|---|---|---|
| Delivery Time | 3 days | 5 days | 10 days |
Number of Revisions | 2 | 5 | 5 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$15 - $50
Additional Revision
+$10Frequently asked questions
About Usama
.NET Developer, ASP.NET Core, C#, Web API, AI Integration, Angular
Lahore, Pakistan - 2:55 pm local time
You're in the right place.
I'm a .NET Developer with 2+ years of professional experience building secure, scalable, and maintainable web applications using ASP.NET Core and modern Microsoft technologies. I help startups and businesses develop custom web applications, REST APIs, SaaS platforms, and AI-powered features that solve real business problems.
I focus on writing clean, production-ready code that is easy to maintain and built to grow with your business.
I can help you with:
• Custom ASP.NET Core Web Applications
• REST API Development & Third-Party Integrations
• SaaS Application Development
• AI Integration using OpenAI APIs
• Angular Frontend Development
• SQL Server Database Design & Optimization
• Authentication & Authorization (JWT, OAuth)
• Bug Fixing, Feature Development & Application Maintenance
My technical expertise includes:
Backend:
ASP.NET Core, .NET, C#, Web API, Entity Framework Core
Frontend:
Angular, React, HTML, CSS, JavaScript
Database:
SQL Server
Cloud & Tools:
Azure, Git, REST APIs
AI:
OpenAI API Integration, AI Automation
Why work with me?
• Clean, maintainable, and scalable code
• Clear communication throughout the project
• Reliable delivery with attention to quality
• Business-focused solutions, not just code
Whether you need a new application built from scratch, an existing .NET application enhanced, or AI capabilities integrated into your software, I'd be happy to discuss your project and help you find the right solution.
Let's build something that delivers real value to your business.
Steps for completing your project
After purchasing the project, send requirements so Usama can start the project.
Delivery time starts when Usama receives requirements from you.
Usama works on your project following the steps below.
Revisions may occur after the delivery date.
Architecture Review & Database Design
I will review your requirements and map out the multi-tenant database schema and entity relationships.
API Development & Isolation Setup
I will build the ASP.NET Core Web API, configure Entity Framework Core, and implement the global query filters for strict tenant isolation.