Rhon Jon G. Romero

Divine Life Damayan Community Inc.General Santos City, South Cotabato, PH

• Developed and maintained a web-based membership and referral management system for divinelifedamayan.com, supporting more than 1,200 registered members.
• Built frontend interfaces and backend features using PHP and MySQL, including CMS-managed landing pages and multilingual content.

PowerGiant RMTPolomolok, South Cotabato, PH

• Developed and maintained backend functionality using PHP and MySQL based on client requirements.
• Assisted with system improvements, testing, and updates during development.
• Deployed the system to a live environment and supported post-deployment improvements, powergiantrmt.com.

Manulife Insurance CompanyKoronadal, South Cotabato, PH

• Assisted with document preparation, printing, and daily office operations.
• Converted PDF documents into editable Word files and supported document processing.
• Assisted with routine computer-related and administrative tasks.

PHP · MySQL · JavaScript · QRlib

• Integrated point-of-sale, barcode checkout, inventory management, and synchronized financial reporting into a single system to improve transaction speed, data accuracy, and management decision-making.
• Conducted usability testing with retail managers and finance staff, achieving a SUS score of 77.17; research published in IJVRA, Vol. 4, Issue 2 (Feb. 2026) — DOI: 10.56975/ijvra.v4i2.700782.

PHP · MySQL · JavaScript · HTML/CSS · Chart.js · AI-Assisted Development

• Developed a web-based tourism system for tourist arrivals, destinations, reports, announcements, and tourism operations at tampakantourism.site.je.
• Implemented a chatbot and secure authentication, CSRF protection, PDO prepared statements, bcrypt hashing, rate limiting, anti-bot protection, and admin analytics using Chart.js.

PHP · MySQL · JavaScript · Tailwind CSS · Git

• Developed a web-based system for managing pet records, veterinary appointments, medical records, and treatment history.
• Used AI-assisted development tools to support coding, debugging, and system implementation.

South East Asian Institute of TechnologyTupi, South Cotabato, Philippines