Building Backends
That Scale.
Software Engineer based in the Philippines. 9+ years delivering event-driven systems, cloud infrastructure, and secure APIs for production environments.
TypeScript · NestJS · PostgreSQL · AWS CDK · Kafka · Docker · Spring Boot
Personally Built & Shipped
Products
Point of Sale · 2026
SIM — Gym Edition
SIM (Sales and Inventory Management) built for gyms — a desktop point-of-sale and membership platform with NFC check-in, subscriptions and packages, staff attendance, retail/cafe checkout, and financial reporting, all running offline on hardware I control.
Point of Sale · 2026
SIM — Retail Edition
SIM (Sales and Inventory Management), generalized for retail — a white-labeled, multi-branch POS forked from the gym edition in under three weeks, with purchasing, suppliers, loyalty, commissions, and offline-first checkout, hardened with a ~790-test backend suite.
Infrastructure
The Lab
Proxmox Cluster
2-Node Cluster & QDevice · Self-Hosted
Two Mac Mini 2012s run 24/7 as the cluster's dev, CI, and media tier. An AMD Ryzen 5600 joins on demand for extra compute or remote gaming, with the Pi standing in as a quorum device — all mesh-networked over Tailscale.
Raspberry Pi
NAS, Networking & Home Automation
Always-on Pi running a DIY NAS, network-level ad blocking, and home automation, alongside the reverse proxy and container stack for the rest of the homelab.