Why I Maintain This Blog Posted on February 6, 2018July 26, 2020 by braindenny Hi there I’m Denny Zhang. A coder at work. (If you are interested in Facebook opportunities, shoot me an email with your self-intro.) Many IT companies use code online judgement to evaluate candidates. Especially the big ones. e.g, Google, Facebook, Amazon, etc. When I first heard of this, I felt being humiliated. Kidding me?