Lee is chairman of Treyspan, Inc.; previously he was chairman of GoAnywhere, Inc and prior to that he was chairman of LinkAir Communications in Santa Clara, California. From 1985-2000, he was Vice President and Chief Scientist of Global Technology for Vodafone AirTouch in Walnut Creek; from 1979-1985, he was manager of the Advanced Development Department at ITT Defense Communications Division; and from 1964 to 1979, he was with Bell Laboratories where he was a pioneer in mobile radio communications studies. Lee is a distinguished alumnus of Ohio State University, where he obtained his Ph.D. in electrical engineering.

Lee served as a member of the California Council on Science and Technology from 1996-2002. He was recognized with the Bell Labs Dedicated Service Award, the ITTDCD Technical Contribution Award and the Institute of Electrical and Electronics Engineers (IEEE) VTS Avant Garde Award. In 1998, he was awarded the CDMA Industry Achievement award for his technical achievements; the IEEE Award of Third Millennium Medal for his outstanding achievement and contributions; and the Stuart Meyer Memorial Award from IEEE Vehicle Technology Society. In 2001, he received the Telecommunication Achievement award from the Chinese Historical Society of America.

Lee has written more than 200 technical papers, and has seven books to his credit. He has been granted 25 patents and conducted courses at George Washington University from 1982-2000. He is a Fellow of the IEEE and the Radio Club of America, a member of the National Council on Competitiveness, and a former member of the FCC Advisory Council. In 2003, he was elected a Fellow of the California Council on Science and Technology.