Everything, not just the highlights

A Vietnamese-language PTE practice platform with AI scoring, running on a LAMP stack I host and administer myself, exposed publicly through Cloudflare.

A full e-commerce platform for an Australian textile retailer — storefront, Stripe and PayPal checkout, inventory with stock thresholds, order management, and a role-based admin for staff.

Detecting AI-generated text and rewriting it into natural prose — served from a self-hosted LLM rather than a paid API, which is where the interesting engineering constraints are.

Australian tax and pay calculators, plus the paperwork utilities that go with them — income tax, HECS, casual penalty rates, salary sacrifice. Every calculation runs in the browser, so nobody's salary is ever transmitted anywhere.

Department of Science & Technology, Dong Nai Province · 2003–2010 · IT Technician

The department's core applications had grown up one machine at a time, in a room never designed for them. I worked on the server room that replaced it, the virtualisation layer beneath it, and the offsite link that put the data outside the building that produced it.

Bien Hoa City People's Committee · 2003–2010 · IT Technician

A network connecting the city People's Committee to its ward offices, with public-service Wi-Fi kept separate from the internal one. Less about the equipment than about deciding what traffic mattered on links that were never generous.