雷军由1992年1月起受聘于金山软件，于发展及扩展本集团的业务运作方面承担重要角色，彼自1998年起出任首席执行官，在其领导下本集团进一步将应用软件扩展至实用软件、互联网安全软件及网络游戏，2007年12月辞去首席执行官职位。2008年改任非执行董事及副主席。2011年7月出任董事会主席。雷先生于2000年4月创立的卓越网 (Joyo.com)联合创办人，该网站于2004年出售予 Amazon.com。雷先生于2007年1月至2009年10月担任已在美国证券交易所上市的2020 CHINACAP ACQUIRCO 公司的董事。2020 CHINACAP ACQUIRCO 公司于二零零七年十一月八日在美国证券交易所上市。
Jun LEI, aged 42, is an non-executive Director, and vice chairman of the Board of Kingsoft(3888.hk). Mr. Lei has been employed by Kingsoft since 1992, and played a key role in developing the operation of Kingsoft Group and expanding the business operations. He has been the chief executive officer of Kingsoft since 1998, and under his leadership, we further expanded applications software businesses into utilities software, Internet security software and online games. In December, 2007, Mr. Lei relinquished his position as chief executive officer, chief technology officer and president of the Company, but remained as an executive director and vice Chairman of the Board of the Company. In August 2008, Mr. Lei was re-designated from an executive director to a non-executive director. He has become the vice chairman since July of 2011. He was co-founder of Joyo.com, which was founded in April 2000 and sold to Amazon.com in 2004. Mr.Lei has held directorship in 2020 CHINACAP ACQUIRCO, INC. — an AMEX listed company since January, 2007. 2020 CHINACAP ACQUIRCO, INC. is listed on AMEX since November 8, 2007. Mr. Lei graduated from Wuhan University in 1991 with a bachelor degree in Computer Science. He has been a member of the board of Wuhan University since 2003. Mr. Lei is also famous angel investor, and he has invested Vancl and become the director.