You will get your legacy .NET application modernized and upgraded
Project details
I will help you modernize, upgrade, and improve your legacy .NET application so it becomes easier to maintain, more secure, faster, and ready for future development.
This project is ideal for businesses with old .NET Framework, ASP.NET MVC, Web Forms, Web API, Windows Forms, WPF, or outdated C# applications that are difficult to maintain, slow, unstable, or hard to extend.
I can help you with:
• Legacy .NET application review
• .NET Framework 4.8 maintenance
• Upgrade planning to .NET 6, 8, 9, or 10
• Code cleanup and refactoring
• Bug fixing in existing modules
• API modernization
• Monolith improvement
• Modular monolith structure
• Microservices migration planning
• SQL Server and Entity Framework improvements
• Security and authentication improvements
• Package and dependency updates
• Performance optimization
• Setup and deployment guidance
My focus is to modernize your application step by step without breaking existing business functionality.
This project is ideal for businesses with old .NET Framework, ASP.NET MVC, Web Forms, Web API, Windows Forms, WPF, or outdated C# applications that are difficult to maintain, slow, unstable, or hard to extend.
I can help you with:
• Legacy .NET application review
• .NET Framework 4.8 maintenance
• Upgrade planning to .NET 6, 8, 9, or 10
• Code cleanup and refactoring
• Bug fixing in existing modules
• API modernization
• Monolith improvement
• Modular monolith structure
• Microservices migration planning
• SQL Server and Entity Framework improvements
• Security and authentication improvements
• Package and dependency updates
• Performance optimization
• Setup and deployment guidance
My focus is to modernize your application step by step without breaking existing business functionality.
Programming Languages
HTML & CSS, ASP.NET, C#Coding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$100
|
Standard
$250
|
Advanced
$500
|
|---|---|---|---|
| Delivery Time | 3 days | 3 days | 10 days |
Number of Revisions | 1 | 2 | 3 |
Design Customization | - | ||
Content Upload | - | ||
Responsive Design | - | ||
Source Code |
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AA
Anas A.
Jun 16, 2026
AI Legal Contract Search System using .NET, OpenAI, and RAG
Aiman was great to work with. She suggested the best architecture for our AI-powered application and helped us plan a scalable, clean, and maintainable solution. She understood the requirements clearly, communicated well throughout the project, and delivered quality work on time. Her technical knowledge, problem-solving skills, and attention to detail were excellent. I would highly recommend Aiman and would be happy to work with her again.
MA
Mian Haider A.
Feb 6, 2024
You will get a fantastic ASP.NET Web API application
Outstanding ASP.NET Developer! The e-commerce application delivered exceeded my expectations. Exceptional attention to detail, clear communication, and timely delivery. Highly recommend!
About Aiman
AI-Powered Full Stack Developer | .NET, OpenAI, APIs, Angular, React
Lahore, Pakistan - 4:34 am local time
I have experience working with both modern and legacy .NET applications, including .NET Framework 4.8, .NET Core 3.1, .NET 5, .NET 6, .NET 7, .NET 8, .NET 9, and .NET 10. I can work with monolithic applications, modular monoliths, microservices, REST APIs, background services, and cloud-ready architectures.
I combine full stack development with practical AI solutions to help businesses reduce manual work, improve workflows, and make their applications smarter.
I can help you with:
• AI-powered full stack web application development
• OpenAI / ChatGPT API integration
• Azure OpenAI integration
• AI chatbot development for business applications
• AI-powered document processing
• PDF, invoice, email, and form data extraction
• Smart search and knowledge base features
• ASP.NET Core REST API development
• .NET Framework 4.8 application maintenance
• .NET Core / .NET 6 / .NET 7 / .NET 8 / .NET 9 / .NET 10 development
• Legacy .NET application modernization
• Monolithic application improvement and refactoring
• Modular monolith architecture
• Microservices architecture and API communication
• Monolith to microservices migration planning
• SQL Server and Entity Framework Core development
• Angular and React frontend development
• API integration with third-party platforms
• Authentication, authorization, JWT, and role-based access control
• Background jobs, queues, event-driven workflows, and automation
• Azure deployment, Azure DevOps, Docker, and CI/CD support
What I can build:
• AI-powered dashboards
• ChatGPT-style assistants for web applications
• Internal AI tools for business teams
• Document upload and extraction systems
• Automated email and file processing workflows
• Secure ASP.NET Core backend APIs
• Admin panels and SaaS applications
• Business workflow automation tools
• Full stack web applications using Angular or React
• Legacy .NET system improvements
• Scalable microservices-based applications
• Clean modular monolith applications
Why work with me:
• I understand both legacy .NET systems and modern .NET applications
• I can work with monolith, modular monolith, and microservices architectures
• I can integrate AI features into real business applications
• I write clean, maintainable, production-ready code
• I can improve existing codebases step by step without breaking business functionality
• I focus on practical AI solutions, not unnecessary complexity
• I communicate clearly and provide regular progress updates
If you need a full stack developer who can build modern .NET applications, improve legacy systems, design scalable APIs, or add useful AI-powered features, I can help you design, develop, and deliver the right solution.
Steps for completing your project
After purchasing the project, send requirements so Aiman can start the project.
Delivery time starts when Aiman receives requirements from you.
Aiman works on your project following the steps below.
Revisions may occur after the delivery date.
Requirement Review
I will review your application details, current issues, technology stack, source code access, database needs, and modernization goals.
Codebase Analysis
I will analyze the existing project structure, dependencies, database access, business logic, errors, performance issues, and risky areas.