Seungjoon Lee has extensive experience in the technology sector, starting as a Research Intern at Bell Laboratories in 2005. Following this, Seungjoon worked at AT&T Research from September 2006 to September 2014 as a Principal Member of Technical Staff, focusing on content delivery, which is a significant aspect of modern Internet traffic. In 2014, Seungjoon transitioned to Two Sigma as a Software Engineer until April 2016, when Seungjoon joined Google as a Software Engineer. Seungjoon holds a Master's degree and a Bachelor's degree in Computer Science from Seoul National University, as well as a Ph.D. in Computer Science from the University of Maryland College Park.