I will build, modernize or fix your dot net application


About this gig
Need an experienced .NET developer to build, fix, modernize, or optimize your application?
Im a Senior Full Stack .NET Developer with 10+ years of professional experience building enterprise applications, REST APIs, microservices and modern web solutions.
I can help with:
C# / .NET / ASP.NET Core development
REST API development & integration
Microservices & backend architecture
Angular / React development
SQL Server, Entity Framework & Dapper
Legacy .NET application modernization
Bug fixing & performance optimization
Azure & CI/CD
Unit testing, TDD & code review
I also use AI-assisted engineering workflows with GitHub Copilot, Cursor, ChatGPT, LLMs, Agents, Skills and MCP to accelerate development, debugging, refactoring, testing and documentation.
With experience across 25+ projects, 500+ API endpoints, 200+ production deployments and 1,000+ code reviews, I focus on reliable, maintainable and production-ready solutions.
Have an existing application, new feature or technical problem? Send me your requirements and Ill suggest the best approach.
Please contact me before ordering complex projects so we can confirm the scope and deliverables.
Get to know Sarfaraj K
Dot NET Consultant specializing in legacy application modernization or migration
- FromIndia
- Member sinceOct 2015
- Avg. response time2 days
Languages
Gujarati, Hindi, English

