Jan 2023 – Dec 2025
Backend Developer (R&D Officer)
Wintech Software Development · Phnom Penh, Cambodia
What I do
- Pawn System: Architected and developed a robust Loan and Pawn Management System using Laravel as the core framework.
- API Architecture: Designed and implemented secure, scalable RESTful APIs to handle complex financial transactions, pawn collateral tracking, and interest calculation schedules.
- API Documentation: Documented the entire RESTful API enabling smoother collaboration with the frontend team and reducing integration bugs.
- Feature Development: Built critical modules for loan origination, repayment tracking, and automated penalty calculations with centralized validation and transactional writes.
- Background Processing: Leveraged Redis-backed queues for heavy lifting tasks like batch interest calculations and mass notification sending, preventing system lag during peak hours.
- System Optimization: Optimized database queries and backend logic to support high-volume transactions across multiple branches.
What came of it
- Built financial workflows for core banking and pawn management with consistent business rules and data-integrity safeguards
- Specialized in technical research, environment standardization using Docker, and performance benchmarking
- Designed and documented complete RESTful API architecture for seamless frontend integration
- Implemented Redis-backed queue system for high-volume batch processing