At JAF Digital Group Inc., I build and maintain Laravel REST APIs for attendance, leave, overtime, and payslips across web and mobile applications. I also integrate services such as HitPay and AiFace biometric devices.
I design MySQL schemas and back-end services for client billing, and write PHPUnit tests for payroll calculations, government reports, and attendance imports. I’ve also fixed access-control vulnerabilities and added safeguards against duplicate payroll processing.
I develop exam and certification features with Laravel and React, and deploy releases to AWS EC2 and Linux servers using Nginx and Supervisor. My work includes investigating client issues by tracing API behavior, attendance records, and payroll calculations.
