roshan hasi

I’m a Backend .NET developer who builds production-grade REST APIs and the database-driven services behind real applications. Since joining as a .NET Developer at Sigilotech, I’ve focused on shipping backend features that are reliable, secure, and performance-minded.

In my work, I build and maintain ASP.NET Core RESTful APIs in C#, handle SQL Server/MySQL operations, and improve data retrieval efficiency through query optimization. I also deploy and manage applications on Microsoft Azure (including App Service configuration and environment management), while working within structured Git workflows and monitoring CI/CD pipelines via Azure DevOps.

On the Impkt investment and sustainability platform, I designed backend modules using a Controller → Service → Repository layered architecture and implemented complex multi-table SQL JOINs with Dapper multi-mapping. I integrated Azure OpenAI to auto-generate sustainability descriptions from scraped content, and I built a database-driven document management system (AppTabs → AppModules → AppForms) with migration scripts and unified REST endpoints.

For my Finance Dashboard Backend, I built a backend from scratch using .NET 8 with JWT authentication and role-based access control for Viewer, Analyst, and Admin. I also resolved Dapper DateOnly to DateTime mapping issues to keep financial entities clean and consistent, and in an IoT Agricultural Monitoring project I implemented Twilio Verify OTP authentication in Next.js while troubleshooting a server-client hydration mismatch.