Charles Nyachae is an advocate of the High Court of Kenya. His 37-years practice has focused on commercial and banking law, property and conveyancing law, and aviation law. He is a member of the Chartered Institute of Arbitrators and a chartered mediator. He has held several notable appointments, including as the Chairperson of the Commission for the Implementation of the Constitution of Kenya, Chair of the Kenya Section of the International Commission of Jurists, and the Institute for Education in Democracy. He was also a member of the council of the Law Society of Kenya.