Jun started his career in 1998 as an Outside Plant Engineer at SBC. From 2000 to 2002 he worked a Fiber Facilities Engineer at WorldCom. Later, he was a Financial Advisor at Sagemark Consulting and LPL Financial. Since 2015 Jun has been the Founder and CEO of bitCash. He is also the Founder of Peerhub Inc. and 100x.
In 1997 Jun received a Bachelor of Science in Mechanical engineering from University of California, Berkeley. In 2003 he obtained a Master of Business Administration in Finance from Paul Merage School of Business.