Daniel Sipos is a senior web developer specializing in Drupal. He's been working with Drupal sites since version 6, and started out, like many others, as a site builder. He's a self-taught programmer with many years of experience working on complex Drupal 7 and 8 projects. He is known for webomelette.com, a Drupal website where he writes technical articles, tips, and techniques related to Drupal development.
He also wrote the book Drupal 8 Module Development.