Bachelor of Laws, Nairobi University. Postgraduate, Nairobi University.
State attorney Chambers of Attorney General, Kenya, 1977-1980. Advocate K. Mwaura & Company Advocates, Nairobi, 1980-1981. Private practice, since 1981.
Board directors Kenya Commercial Bank Ltd. Chairman disbursement and recovery committee Higher Education Loans Board, 1995-2000.
Fellow Chartered Institute Arbitrators. Member Institute Public Secretaries, Law Society Kenya.
Married Lucy Wamaitha Mwangi, September 3, 1983. Children: Elizabeth Muthoni Chege, Benjamin Kirundi Chege, Winfred Wanjiru Chege, Joseph Mwangi Chege.