Oscar Chan Ho Yin

AI-Tooling Engineer · Senior Full-Stack · Platform-Cloud

LOCATIONHong Kong
LANGUAGES廣東話 native · English fluent · 普通話 working

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01 Summary

I design and ship production Cloudflare infrastructure with an AI agent as my pair-programmer, under guardrails I authored. 244 commits across 57 versioned releases, 1,130+ passing tests, zero unauthorized prod writes.

Most engineers in 2026 treat AI as autocomplete. I treat it as a junior engineer with checklists, dry-runs, audit logs, and a 5-source verification chain that catches fabrication. The flagship artifact is a live, edge-deployed taxi-rental operations app — but the real product is the workflow that makes AI-written code safe to ship.

02 Stack

Cloudflare

Workers · Pages · D1 · R2 · Cron Triggers · Edge computing · direct-upload deploys · env routing

Frontend

React 18 · TypeScript · Vite · Tailwind · shadcn/ui · accessibility

Backend

Hono · Drizzle ORM · SQLite · JWT auth · role-based access control

DevOps / SRE

Wrangler · GH Actions · dry-run + --confirm gating · audit logging · verification chains · incident response

Testing

Vitest · Playwright · Miniflare · TDD discipline · regression test ownership

AI orchestration

AGENTS.md authorship · rule-as-code · AI-written-code review flow · cross-session continuity

03 Selected Projects

An Agentic AI platform for AI programming — the rails that let AI ship safely.

🤖 Agentic AI Engineering Practice flagship

🚕 Taxi Rental Management System flagship-product

🛡️ AI Safety Harness meta-project

04 Experience

IT Assistant

Miramar Hotel and Investment Company Limited

2024 — Present

Independent · AI-Augmented Full-Stack Engineer

Self-directed · Taxi-rental platform + portfolio

2024 — Present

Officer — Engineering

Kerry Logistics Network Limited

2018 — 2024

Six years operating production network infrastructure for a regional logistics firm. Routers, switches, firewalls, system backups, DR planning, hardware rollouts.

QA / QC Engineer

Hongkong United Reinforcement Engineering Ltd

2016 — 2017

Formation and implementation of quality management system. Set up internal control system for regulatory compliance (ISO 14001 / ISO 9001). Document and record control.

Project Coordinator

City Telecommunication Engineering Company Limited

2010 — 2014

Improved client satisfaction with timely updates and transparent communication throughout project lifecycle. Supervised multiple projects from start through delivery by prioritizing needs and delegating assignments.

05 Education

06 Languages

廣東話 (Cantonese)Native
EnglishFluent
普通話 (Mandarin)Working