A collection of systems and applications I've designed, built, and shipped. Each project solved a real problem for real users.
Web-based payroll and HRIS platform for Philippine businesses. Handles BIR TRAIN-law tax computation, SSS/PhilHealth/Pag-IBIG remittances, biometric attendance, leave and overtime management, and employee self-service.
Handled the complete lifecycle — requirements gathering, database design, interface development, testing, deployment, and ongoing maintenance.
Official website of the City Government of Batac, Ilocos Norte. Includes city profile, government directory, calendar of activities, and downloadable government forms.
Developed and maintained the website, managed content updates, and handled technical issues.
Company website for a tax and accounting firm. Features service pages, team profiles, inquiry forms, and online appointment booking.
Built the website using WordPress and Elementor, configured forms, and set up the hosting environment.
Converts Excel spreadsheets into BIR-compliant DAT files for RELIEF and Alphalist Data Entry esubmission. Users upload a file, the tool validates and converts it, and they download the result — replacing manual data entry.
Built the application end-to-end — file upload handling, Excel parsing, data validation, DAT file generation, and the user interface.