Hacking Wordpress - A Primer for PHP Programmers
at CascadiaPHP 2019
State of the PHP Community
at PHP UK Conference 2017
Web Security and You
at SunshinePHP 2016
at PHP UK Conference 2014
Caching Best Practices
Hacking Wordpress, a Crash Course in Writing Plugins and Widgets
at SunshinePHP 2014
Habits of Highly Scalable Web Applications
at Dutch PHP Conference 2009
Code & Release Management