MARK JEFERSON MANALO

Delivered full-stack web and mobile applications end to end, owning frontend and backend implementation with React.js and React Native backed by custom APIs and relational databases. Led client meetings to scope requirements and provided progress updates, then ran pre-release testing and defect triage to resolve issues before handoff. Improved build and debugging cycles by embedding AI-assisted tooling (Claude Code, Codex, Cursor) into a review-first workflow with manual verification before merges.

Designed and shipped a digital invitation and event coordination platform using React.js, PHP, and PostgreSQL, supporting invitation delivery, guest records, and event scheduling. Built separate client-facing and administrative interfaces with responsive layouts and event/guest/invitation record management. Owned the deployment pipeline with Git, GitHub, Vercel, and Render, releasing updates based on client feedback, and produced technical documentation for non-technical staff.

Encoded and validated property and administrative records while maintaining data accuracy across internal systems. Restructured electronic filing and document workflows to improve record retrieval and reduce friction for office staff.