Resume

LinkedIn

Lead Web Developer

Building intelligent, reliable web products.

Lead web developer based in Metro Manila, building web and mobile products end to end — from AI-powered apps to enterprise systems, currently leading development at Qroad Ph.

View resume

LinkedIn

Selected Work

2024 — 2026
Voucher Hunt
Web & Mobile Platform2026

Voucher Hunt

A voucher marketing platform for small businesses: customers spin to win a discount, book a time slot to use it, then redeem it in store — with an admin dashboard, a staff counter screen, loyalty points, and an Android app.

Next.jsReact NativeExpoTypeScriptTurso / libSQL
Live DemoSource Code
Kwarta
Web Platform2024

Kwarta

A responsive personal finance app for tracking income, expenses, budgets, accounts, transfers, reports, and backups with authenticated workspace persistence.

ReactNext.jsTailwindVercel
Live DemoSource Code
Sellix
E-Commerce2025

Sellix

A production-grade full-stack e-commerce platform built to demonstrate real-world frontend and full-stack development skills.

ReactNext.jsTailwindVercel
Live DemoSource Code
GameLead Radar
AI Platform2026

GameLead Radar

An AI-powered lead discovery platform that crawls game-industry news and RSS feeds to surface pre-launch leads, then enriches contacts and automates scheduled outreach.

Next.jsReactTailwind
Source Code

Experience

My professional history

Jun 2026 — Present

Lead Web Developer

Qroad Ph

Voucher Hunt — Voucher Marketing Platform (Web + Android)

  • Led development of a voucher marketing platform for small businesses — customers spin to win a discount, book a time slot to use it, then redeem it in store — covering an admin dashboard, a staff counter screen, and an Android app
  • Built the campaign setup: venues, bookable time slots with capacity, and prizes with their own stock and win rates, so a business can steer its biggest discounts to its quietest hours
  • Built the prize draw and booking flow so a prize is only offered while it is still in stock with a date open, and slots and prizes are never overbooked when several customers confirm at once
  • Added passwordless sign-in with a one-time code sent by SMS, and the counter screen where staff scan a QR code or type a voucher code to check it and mark it used
  • Built a loyalty points system shared across partner businesses — customers earn points on purchases and spend them on partner items in an in-app shop, with monthly statements settling what each partner owes or is owed
  • Shipped the customer experience as an Android app on Google Play with push notifications, in English, Korean, Chinese, and Japanese
Next.jsReactReact NativeExpoTypeScriptTurso / libSQLZod

GameLead Radar — AI Lead Discovery Platform

  • Built an AI-powered platform that crawls game-industry news and RSS feeds to surface pre-launch sales opportunities (CBT, OBT, pre-registration, soft launch) for QROAD
  • Engineered an automated pipeline that uses OpenAI to analyze articles and score/grade leads, then enriches contact emails and automatically sends outreach emails to qualified leads via SMTP with daily limits and scheduling windows
Next.jsReactTypeScriptNode.jsPrismaSQLiteOpenAIMUI

QROAD AI SNS Manager

  • Developed an internal AI social media manager for Facebook, Instagram, and TikTok that uses OpenAI to generate platform-specific post drafts (captions, hashtags, image text, and video scripts) with quality scoring
  • Built a human-in-the-loop approve-before-publish workflow with approval queues, scheduling, and reporting on Prisma with SQLite locally and Turso/libSQL for hosted deployments
Next.jsReactTypeScriptOpenAIPrismaTurso / libSQLTailwind CSS

iLoveJ Comment-to-DM Voucher Campaign

  • Built the API backend and admin dashboard for a Meta comment-to-DM voucher promo integrated with a Shopify storefront
  • Implemented atomic tiered-voucher assignment from limited inventory and SMS delivery, secured with rate limiting and HMAC-verified webhooks; deployed on Vercel
Next.jsReactTypeScriptTurso / libSQLTailwind CSS

Internal Business Lead Collection

  • Built a lead-generation tool that collects business leads from Google Maps by location and category, with duplicate detection and Excel/CSV export
  • Added email and SMS outreach to collected leads, including automatic scheduled email sending with contact-email discovery, daily limits, and SMTP delivery
Next.jsReactTypeScriptNode.jsPrismaMUI

BasketballScorer (Android)

  • Built and packaged a native Android basketball scoring app for public release on Google Play, featuring live CameraX recording and an on-screen score overlay
  • Auto-generated scoring highlight clips and SRT subtitles via on-device MediaMuxer processing, with Room storage, Play Billing subscriptions, and AdMob ads
KotlinJetpack ComposeAndroidRoom

Oct 2023 — Mar 2026

Frontend / React Developer

Advanced World Solutions, Inc.

Property Management System Migration

  • Developed and maintained REST APIs for PMS web migration
  • Fixed production bugs and supported integration testing
  • Wrote technical documentation and migration evidence
  • Contributed to converting a desktop PMS into a web-based system
ReactTypeScriptNode.jsC#SQLOracle

Quality Analysis & Root Cause Visualization Tool

  • Developed a web-based quality analysis tool for an offshore client to support structured root cause analysis
  • Implemented interactive Pareto Charts and Fishbone (Ishikawa) Diagrams for data-driven decision making
  • Built reusable React components to visualize and manage quality metrics
ReactJavaScriptNode.js

Location-Based Promotional Mobile Application

  • Assisted in developing a BLE-enabled mobile application for delivering location-based promotional content
  • Designed and prototyped UI/UX flows using Figma
  • Implemented application logic using C# and Xamarin for cross-platform mobile support
C#XamarinFigma

Cell Coverage Web Development Project

  • Assisted in the development of a web platform for visualizing and managing cellular coverage data
  • Implemented frontend functionality using JavaScript and jQuery
JavaScriptjQueryDynamoDBNode.jsGit

Feb 2023 — May 2023

Fullstack Developer

General Services Office Iloilo

Barangay Solid Waste Management System

  • Designed and developed an end-to-end web-based Barangay Solid Waste Management System as the sole developer during an OJT engagement
  • Built a full-stack solution using React.js and Next.js for the frontend, and a RESTful backend with Node.js and Express.js
  • Designed relational database models with Sequelize ORM and MySQL, implementing authentication, data management, and reporting features
React.jsNext.jsNode.jsFirebaseMySQL

Capabilities

Reactjs

Advanced

90%

Nextjs

Intermediate

68%

Tailwind CSS

Advanced

90%

React Redux

Beginner

45%

MaterialUI

Intermediate

68%

React Native

Intermediate

68%

Expo

Intermediate

68%

Flutter

Beginner

45%

Get in touch

jiraldcalusay@gmail.com

Phone

0961 407 3159

Location

Makati, Metro Manila, PH