● System Testing: Conduct systematic routine testing to ensure system integrity at each stage ● Project Coordination: Utilize project management tools (Notion, Jira, Spreadsheets) for cross-departmental communication and tracking. ● Data Management: Develop python scripts for data organization, manipulation, and Excel export ● Quality Control: Maintain high standards of task completion and system quality

● API Development: Constructure API for POS System using Laravel framework and Postman for testing ● Backend Management: Built Admin Portal for inventory management and product oversight. ● System Architecture: Developed the long-term E-commerce system with the POS system.

● Internal Management Systems: Customized and designed client-specific systems using Laravel, including: ○ HR & Accounting System of Lawyer Firm ○ Loan Case Submission System of Financial Company ○ Content Management System (CMS) ● Mobile Development: Developed Mobile Tracking System using Kotlin ● Team Leadership: Led and collaborated with interns in some system development projects