David Mosterd, based in The Netherlands, is the lead developer of Admin Columns, a WordPress plugin for viewing, finding and editing content quickly in the WordPress admin panel. He’s been developing with WordPress since forever, focussing most of his efforts on Admin Columns. Jesper van Engelen was part of the core development team of Admin Columns until 2015, and is still involved with its development. He’s current studying Computer Science at Leiden University (The Netherlands).