Siu Choi
IT Consultant at Manychois
Sydney, New South Wales, Australia
Summary
👤
Senior🎓
Top SchoolSiu Choi is an experienced full-stack IT consultant based in Sydney with over a decade building and modernizing high-traffic web platforms across .NET, PHP and Node.js. He has a strong track record of measurable impact—reducing page load times by 45%, processing 100k+ daily API transactions, and lifting conversions by ~32%—while maintaining 100% client retention on long-running directory portfolios. Comfortable leading legacy upgrades (Node v0.10→v10), containerised development, and serverless cost optimisations, he also raised test coverage from 10% to 75% on critical systems. Fluent in Cantonese, Mandarin and English, Siu pairs multicultural collaboration with remote-work discipline and a hands-on approach from database tuning to responsive front-ends. He routinely delivers quick-turn prototypes (three SPA launches in a week) and builds documentation that halves onboarding time, showing an unusual blend of speed, reliability and knowledge-sharing.
11 years of coding experience
10 years of employment as a software developer
The Chinese University of Hong Kong (CUHK)
English, Chinese
Stackoverflow
410reputation
43kreached
22answers
2questions
Github Skills (41)
domdocument10
queryselectorall10
javascript10
parser10
css10
http10
html-parser10
dom10
html10
web-development10
queryselector10
testing9
static-analysis9
fundamentals9
static-analyzer9
Programming languages (6)
Github contributions (5)
manychois/php-views
Jun 2018 - Jan 2025
A naive PHP template library.
Contributions:6 PRs, 14 pushes, 7 branches in 6 years 8 months
template-library
manychois/simdom
Dec 2022 - Nov 2024
A simple-to-use PHP library for processing DOM documents.
Contributions:43 PRs, 143 pushes, 33 branches in 1 year 10 months
domhtml5parserphp
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