This project involved building and maintaining a production back-end system used by real business users to manage daily operations.
The system supports multiple user roles, secure authentication, and structured business workflows. It integrates with external services and ensures data consistency between different modules.
My responsibilities included back-end architecture, database design, API development, and performance optimization. The focus was on stability, clarity of business logic, and long-term maintainability, not experimental features.
This solution helped the business reduce manual work, centralize data, and improve operational reliability.
- Back-End Developer
- Background Designer













