Professional experience

As a front-end web developer specializing in HTML / CSS / JavaScript, I have helped to build websites for many organizations. I have also led project teams and mentored other developers.

Past projects

Other companies I have worked with include:

  • AIA Group
  • City of Dreams – The House of Dancing Water
  • Hang Seng Bank
  • HSBC Hong Kong
  • J.P. Morgan Asset Management Hong Kong
  • Miramar Group Hong Kong
  • New York Life Hong Kong
  • Zurich Insurance Hong Kong

Open source

I am the creator/maintainer of many packages for OpenWrt, a Linux operating system targeting wireless routers and other embedded devices, including:

  • Python interpreter and various Python library packages
  • Go compiler and a system to package other Go programs for OpenWrt
  • byobu, a text-based window manager and terminal multiplexer
  • obfs4proxy, a censorship circumvention tool
  • slide-switch, a package for devices with a sliding switch, to make the switch easier to program

I am the author of several plugins for gedit, a popular open source text editor:

I am also the author of Google Cache Continue Redux, a userscript to browse websites using Google’s cache that was featured in Lifehacker.

On StackOverflow, I am in the top 0.4% of all users in Hong Kong and top 3% worldwide.


Many past colleagues have recommended me on LinkedIn. Some highlights:

Jeffery is a brilliant web developer that challenges conventional thinking and raises the bar for the team around him…

CEO, HK4As advertising agency

I think two things separate Jeff from the vast majority of developers in Hong Kong: intellectual curiosity and a real investment in his work.

Strategic Services Director, APAC, leading marketing automation company

A mutual colleague once told me that Jeff is “the best front-end developer in Hong Kong”, and after having worked with him for over two years, I’m inclined to agree.

Director, Marketing Solutions, major Hong Kong newspaper