Focus on front-end, test automation, and continuous delivery

Principal Software Engineer

Core UI developer of Command Control Suite https://www.youtube.com/watch?v=8LnVhqgz3kE
Spent a lot of time mentoring and pairing

Senior Software Engineer

Business requirements analysis Technical solution design 
Sophisticated single-page web application development with Knockout.js, jQuery, HTML5 & CSS3, ASP.NET MVC
Database development with SQL2008 
Scripting MsBuild / Powershell / Python 
Source control / build / deployment management Internationalisation 
Performance tuning Code Review 

Senior Developer

Test driven back-end development with .NET 4.0 / Linq2Sql / MVC3 / Azure / WCF 
Front-end development with JavaScript / HTML / CSS 
SQL development and performance tuning 
Code review

Senior ASP.NET Developer

As a .NET developer in Mimeo team (.NET 3.5)
 As a front-end developer in Zoomino team (JavaScript / HTML / Python） 

Senior Front end Developer

When Mozilla was creating JavaScript there was a bussiness requirement that it should allow Java developers/UI deesigners to use it without spend to much time to learn it

Unlike typical developers from C#/Java background, I didn't follow that path, I learned and use JavaScript seriously, understood all its core concepts and avoid its bad parts

My strong .NET background gave me the knowledge of the full life cycle of software development and software design priciples, which benefits my day to day front-end development work

I have been practicing TDD with Jasmine/Mocha/QUnit and delivering high quality products

I enjoy writing functional programming style JavaScript to produce composable and immutable code. I always use const whenever possible, declared less than 10 variables in the past year, which means most of my code is mathematically impossible to get into an unexpected state. I deeply understand the concepts of functor, applicative and monad and use them to avoid null reference exceptions, timing issues and race conditions. Their names are scary but they do natively exist in JavaScript - Array and Promise, but of course you need to use them the right way

Performance optimization and JavaScript memory profiling is also my strength

I write clean, semantic HTML and css
I have been using Selenium/Ranorex to write automated acceptance tests, a well design HTML structure and css class naming ensures the tests are robust, because the HTML doesn't need to change to much when the visual style requirement changes

I always write testable code. In most of the case start with tests, then implement production code to make the test pass.
There are many benefits of doing test first: 
  Get instant feedback as soon as you finish typing
  Have no fear of changing/refactoring code
  Code is proven working
  Enforce clean interfaces in code

C# was my primary language and is my 2nd favorite language.
Don't use it too much today but strong .NET knowledge helps me integrating back-end service and web front-end better, as well understand systems development life cycle, design patterns and SOLID pinciples

A JavaScript, React and  test automation guru

York Wong

Map based building control/incident managment system. Core technologies are OpenLayers, SignalR

Personal details

York W.

Summary

Technical skills

Work Experience

Personal Projects