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Fiverr Pro
English
$
USD
I will develop and architect professional dotnet web apps and apis
Chamika
Vetted Pro
5.0
5.0
Vetted by Fiverr Pro
Chamika was selected by the Fiverr Pro team for their expertise.
About this gig
Need a Senior Software Architect to build, scale, or fix your .NET Core application or backend API?
With 15+ years of enterprise software engineering experience and Fiverr Pro vetting, I specialize in engineering secure, high-performance web applications and backend systems using C# and .NET.
Whether you need a robust Web API from scratch, Entity Framework performance tuning, cloud migration to Microsoft Azure, or an urgent backend bug fix, I deliver clean, production-ready code.
What I Can Do For You:
- Custom .NET Core Web APIs: Scalable RESTful microservices and minimal APIs using C#.
- Database Engineering: Entity Framework Core, SQL Server, and optimized queries.
- Enterprise Security & Auth: JWT, OAuth2, and Azure AD / Entra ID identity management.
- Cloud & Azure DevOps: Azure App Services, SQL Databases, Docker containers, and CI/CD pipelines.
- Legacy Modernization: Refactor older .NET Framework code to modern .NET.
Why Work With Me?
- Vetted Fiverr Pro Architect: 15+ years of hands-on experience.
- US Eastern Time (EST/EDT): Real-time communication and fast turnaround.
Message me now to discuss your .NET project!
Get to know Chamika
Chamika
Vetted Pro
Full Stack Architect in Dotnet, Angular, React, Azure, Mobile and AI Apps
Chamika is part of the Fiverr Pro catalog and has been hand-picked by a dedicated Fiverr Pro team for their skills and expertise.
Vetted for
Software Development
Website Development
- FromUnited States
- Member sinceJul 2017
- Avg. response time1 hour
- Last delivery1 year
Languages
English, Sinhala
Fiverr Pro Vetted Software Architect and Senior Full-Stack Developer with over 15 years of experience building scalable enterprise web apps, APIs, and cloud solutions.
Whether you need to modernize a legacy .NET or Angular app, build a SaaS MVP in React, or automate cloud deployments on Azure and AWS, I deliver clean, production-ready code.
Stack: C#, .NET Core, ASP.NET, Entity Framework, Angular, React, SQL Server, Docker, DevOps, and AI Agent integrations.
Based in US Eastern Time (EST/EDT) for seamless communication. Message me to discuss your project today!
My Portfolio
FAQ
What .NET and C# versions do you work with?
I specialize in modern .NET (.NET 6, 7, 8, and 9) using C#, ASP.NET Core Web API, and Entity Framework Core. I also have deep experience maintaining and refactoring legacy .NET Framework applications.
Can you help with database design and SQL optimization?
Yes. I design robust relational database schemas for SQL Server and PostgreSQL, write optimized LINQ and raw SQL queries, and resolve performance bottlenecks or slow-running database transactions.
Do you set up cloud hosting and CI/CD pipelines?
Absolutely. I configure Azure App Services, Azure SQL, Docker containerization, and automated deployment pipelines using GitHub Actions or Azure DevOps.
Reviews
4 reviews for this Gig
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| (0) | ||
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
G guyleumi
United Kingdom
Ongoing collaborationWorking with Chamika was an absolute pleasure! His CODE EXPERTISE and professionalism truly exceeded expectations, and his proactive communication made the process smooth and efficient. Chamika's quick responsiveness and ability to go above and beyond made this collaboration a SUCCESS! 👍
$400-$600
Price
11 days
Duration
Helpful?G guyleumi
United Kingdom
Ongoing collaborationQuick turnaround around and the output was aligned with the requirements, I will recommend Chamika for any .NET full-stack development
$200-$400
Price
4 days
Duration
Helpful?A anasmofidi
United Kingdom
Ongoing collaborationI had the pleasure of working with Chamika, and I can honestly say he has been brilliant throughout the entire process. Not only did he deliver excellent work, but he also assured me that he would provide support even after the order was completed if I encountered any issues. His responsiveness is outstanding...
$1,000-$2,500
Price
5 weeks
Duration
C 
Seller's Response
Helpful?C 
cre8er
India
Positive experience overall. Quite helpful and responsive too.
$200-$400
Price
Helpful?1 person found this review helpful.
Reviews
4 reviews for this Gig
| (4) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
G guyleumi
United Kingdom
Ongoing collaborationWorking with Chamika was an absolute pleasure! His CODE EXPERTISE and professionalism truly exceeded expectations, and his proactive communication made the process smooth and efficient. Chamika's quick responsiveness and ability to go above and beyond made this collaboration a SUCCESS! 👍
$400-$600
Price
11 days
Duration
Helpful?G guyleumi
United Kingdom
Ongoing collaborationQuick turnaround around and the output was aligned with the requirements, I will recommend Chamika for any .NET full-stack development
$200-$400
Price
4 days
Duration
Helpful?A anasmofidi
United Kingdom
Ongoing collaborationI had the pleasure of working with Chamika, and I can honestly say he has been brilliant throughout the entire process. Not only did he deliver excellent work, but he also assured me that he would provide support even after the order was completed if I encountered any issues. His responsiveness is outstanding...
$1,000-$2,500
Price
5 weeks
Duration
C Seller's Response
Helpful?C cre8er
India
Positive experience overall. Quite helpful and responsive too.
$200-$400
Price
Helpful?1 person found this review helpful.
