B2B Group-Buying SaaS•In Development · GCash Partner Integration

Paynoy Store Sales & Inventory System

Accessible retail software and business hub built for everyday Filipino micro-merchants.

Role

Founding Systems Architect & Lead Engineer

Organization

QUALCOM / Paynoy

Timeframe

2025 — Present

Status

Active Development

TurborepoNext.js 15 (App Router)Astro 5TypeScript (Strict)Supabase (PostgreSQL & RLS)ZustandTailwind CSS v4
Paynoy Store Sales & Inventory System Production Interface

Executive Summary & Strategic Overview

We are building an accessible retail platform for everyday Filipino shopkeepers. It combines a fast counter register, inventory tracking, and GCash partner integrations.

Verified Performance Metrics & Business Impact

GCash

Partner

Partnering to onboard local stores into Scan to Pay and Pera Outlet programs.

Accessible

Everyday Retail OS

Built for neighborhood sari-sari stores and micro-merchants who find traditional POS systems too costly.

Unified Hub

App Architecture

Centralizes authentication, merchant profiles, and modular business tools in a single Turborepo platform.

The Engineering Challenge

Commercial POS systems are too expensive for everyday Filipino sari-sari stores. Most store owners lack tech skills and cannot afford costly hardware. My father runs QUALCOM, a technology center serving provincial merchants for decades. He saw firsthand how neighborhood shops struggle with manual calculations and lost records.

The Architectural Solution

We partnered to build an affordable platform for everyday Filipino shopkeepers. My father maps real merchant needs and sketches workflows with AI. I turn those domain requirements into clean, production-grade software. I engineered the fast counter register and architected the unified hub.

Core Technical & Architectural Highlights

01

One-Tap Counter Register

Features large touch buttons and instant change calculation to prevent math errors during busy hours.

02

Direct Digital Payment Workflow

Allows local stores to accept QR payments easily without renting costly bank terminals.

03

Unified Merchant Platform

Provides a single login to manage counter sales, inventory tracking, and partner business tools.

Agentic AI Pair Programming & Antigravity Acceleration

I taught my dad how to prototype merchant workflows using AI tools. Watching a non-developer use AI gave me fresh insights into real user needs. This helped me build simpler interfaces and refine my engineering workflows.