You will get a modernize and scale your legacy .NET enterprise system
Project details
You will get a scalable modernization of your enterprise legacy .NET system designed to improve performance, maintainability, and long-term business growth. I help businesses upgrade outdated .NET applications, refactor legacy code, modernize architecture, and prepare systems for cloud readiness using Azure and modern .NET technologies.
This service is perfect for enterprise applications built with older .NET Framework versions, WinForms, ASP.NET, or monolithic systems that need modernization without disrupting business processes.
My approach includes:
• Code refactoring for maintainability and readability
• Architecture modernization for scalability and cloud readiness
• Performance optimization for faster, reliable operation
• Secure implementation and alignment with clean architecture principles
• Preparation for integration with modern tools and services
Your system will become easier to maintain, extend, and scale, ensuring long-term stability while supporting modern business needs.
This service is perfect for enterprise applications built with older .NET Framework versions, WinForms, ASP.NET, or monolithic systems that need modernization without disrupting business processes.
My approach includes:
• Code refactoring for maintainability and readability
• Architecture modernization for scalability and cloud readiness
• Performance optimization for faster, reliable operation
• Secure implementation and alignment with clean architecture principles
• Preparation for integration with modern tools and services
Your system will become easier to maintain, extend, and scale, ensuring long-term stability while supporting modern business needs.
Programming Languages
JavaScript, ASP.NET, C#Coding Expertise
Cross Browser & Device Compatibility, Localization, Performance OptimizationWhat's included
| Service Tiers |
Starter
$300
|
Standard
$600
|
Advanced
$1,200
|
|---|---|---|---|
| Delivery Time | 5 days | 10 days | 15 days |
Number of Revisions | 1 | 2 | 3 |
Bug Investigation | - | - | - |
Fix Documentation | - | - | - |
Detailed Code Comments | - | - | - |
Frequently asked questions
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SM
Sidra M.
Mar 7, 2026
C# / ASP.NET Core Developer Needed for Scalable Web Application
Great experience working with this freelancer. They delivered high-quality work on time and communicated well throughout the project. Highly recommended!
SB
Sabeeha B.
Mar 5, 2026
Full Stack .NET Developer Needed for Application Issue Resolution
Excellent work! The freelancer delivered high-quality results on time and communicated clearly throughout the project. Very professional and reliable. Highly recommended!
WW
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About shahbaz
.NET Developer |AI, LLM| ASP.NET Core | SaaS & Azure,AWS | MAUI | WPF
100%
Job Success
Sialkot, Pakistan - 8:21 pm local time
I help startups and teams build reliable ASP. WebForms, ASP.NET MVC, ASP.NET Core, Angular, AWS, Azure applications, high-performance APIs, and scalable backend systems using C# and cloud infrastructure.
With 12+ years of experience, I focus on building systems that don’t just “run” - but stay stable, fast, and maintainable as your product grows.
What I can help you with
===================
• ASP.NET Core Web API development
• SaaS and backend system architecture
• Full-stack development (.NET + Angular)
• Fixing performance issues and unstable systems
• Migration to .NET Core / modern architecture
• Azure cloud deployment and scaling
Experience that matters
===================
• Built and scaled applications used by real users
• Improved API performance and system reliability
• Migrated legacy systems into modern .NET Core setups
• Delivered production-ready systems across multiple industries
Selected Projects (Real Work)
===================
• Healthcare / EHR System:
Built a patient appointment scheduling and EHR system with secure workflows, real-time updates, and scalable backend architecture.
• Transportation & Real-Time System:
Developed an event transportation platform using SignalR + Web API for real-time tracking and communication.
• ERP System (Blazor):
Created a real estate ERP system using Blazor with role-based access, dashboards, and business process automation.
• POS Desktop Application:
Built a WPF-based POS system with inventory, billing, and reporting features for retail operations.
• Legacy System Optimization Tool:
Developed a paper roll optimization system improving operational efficiency and reducing resource waste.
How I work
=========
Most problems in software come from poor structure early on. I help you:
• Avoid bad architecture decisions
• Keep your system simple and scalable
• Build something that lasts
No overengineering. No shortcuts that break later.
Core stack
=========
→ C#, ASP.NET Core, .NET Core
→ Web API, REST APIs
→ Angular, TypeScript
→ SQL Server
→ Microsoft Azure
→ Docker, CI/CD
Why clients choose me
==================
• 12+ years of experience
• Strong backend and architecture focus
• Clear communication and fast response
• Reliable delivery
Let’s keep it simple
If you need someone who can build, fix, or scale your .NET system properly, I can help.
Happy to review your project and suggest the best approach before you commit.
Keywords:
.NET Developer | ASP.NET Core Developer | C# Developer | .NET Full Stack Developer | .NET Backend Developer | .NET Web API Developer | Microservices Developer | Angular Developer | SaaS Developer | Azure Developer | AWS Developer | Cloud Application Developer | .NET Migration | .NET Upgrade | SQL Server Developer | Entity Framework Core | REST API Developer | Enterprise Application Developer | .NET Development | .NET Core | .NET 7/8 | ASP.NET Core | ASP.NET MVC | C# | Angular (All Versions) | TypeScript | Web API | REST APIs | Microservices | SQL Server | Azure | AWS | SaaS Development | Cloud Architecture | DevOps | CI/CD | Blazor | SignalR | Entity Framework Core | Dapper | AI Integration
Steps for completing your project
After purchasing the project, send requirements so shahbaz can start the project.
Delivery time starts when shahbaz receives requirements from you.
shahbaz works on your project following the steps below.
Revisions may occur after the delivery date.
System Assessment:
Review legacy code, architecture, and business processes.
Refactoring Plan:
Identify areas for modernization, code cleanup, and performance improvements.