At NTT DATA, I developed registration and approval forms for Doosan’s E-Approval application, including business trip, transaction approval, and budget forms. These standardized workflows help employees submit and process business requests.
For HCA Healthcare, I developed C#/.NET backend services and REST APIs, along with responsive UI modules supporting search, filtering, and CRUD functionality. I integrated UI, APIs, business logic, and SQL Server, and implemented role-based access control aligned with HCA’s organizational hierarchy.
I also supported E-Approval users and handled historical data extraction requests for management analysis. My work has included API testing with Postman, unit testing, and application troubleshooting across UI, backend, and database layers.
