Journalistic summary: Edwin Chang is a skilled professional with vast experience in the tech industry. He studied Computer Science at the University of California, Berkeley, and afterward started working at Google as a Software Engineer. During his time there, he specialized in developing and improving algorithms for search engines, eventually rising to the position of Senior Software Engineer. Later, he moved to Facebook, where he worked as a Technical Program Manager, leading teams to deliver high-quality products. Currently, Edwin is the Director of Engineering at LinkedIn, where he oversees the development and implementation of the company's technical strategy.