Selected work

A thesis web application and grassroots financial platform developed with World Vision Philippines. Features role-based interfaces for weekly cash reconciliation, interactive analytics with Recharts, automated in-browser PDF receipt generation using jsPDF, and 52-week cycle share-out calculations.

A full-stack certificate creation and batch issuance platform built with Next.js, TypeScript, and Supabase. Features an interactive vector/canvas template editor, CSV recipient importing, personalized high-resolution PDF/PNG batch generation with ZIP export, and secure guest digital signature links with token expiration.

An offline-first trail and biodiversity mobile platform engineered using React Native (Expo) and SQLite. Combines GPS trail recording and geotagged multimedia observations with a 100-species botanical catalog, AI-assisted identification, offline trait matching, and elevation-based reforestation recommendations.

A private web application for students completing internships to manage placements, save daily log drafts, validate work hours, and keep records secure with row-level security.

A private, offline-first mobile workspace for independent freelancers to convert client conversations into binding project scopes, detect scope creep, and protect billable hours.