Dr. Mathuki was the Director in charge of International Labour Standards at the
International Confederation of Free Trade Unions between 2004 and 2008. Dr. Mathuki was recommended by Kenyan president
Uhuru Kenyatta for the position of Secretary-General of the East African Community, following the tenure of former EAC Secretary-General Libérat Mfumukeko. Dr. Mathuki was appointed to the position by the East African Community Heads of State on 27 February 2021. He assumed office on 25 April 2021, with his term set to end in 2026. As Secretary-General, Dr. Mathuki played a pivotal role in overseeing the coming into effect of the
African Continental Free Trade Area and championed the formation of the African Business Council to reposition the EAC bloc to reap the benefits availed by the continental market. Under his stewardship, the EAC saw the accession of the
Democratic Republic of the Congo and
Somalia to the community, expanding the population of the EAC from 184 million to 340 million. He was also instrumental in the creation of several regional platforms, which were critical in the negotiation of the EAC Common Market Protocol such as the East African Employers Association and the East African Trade Union Confederation. In May 2024, Mathuki was appointed as the Kenyan Ambassador to Russia and therefore leaving his role as the Secretary-General of the East African Community.
Veronica Nduva was sworn in on 7 June 2024, as the replacement by the Kenyan President to complete his term.
Embezzlement In March of 2024, an impeachment campaign was started in the EALA for the impeachment of Dr. Mathuki due to six million dollars in missing funds from the EAC Secretariat's Peace Fund. The allegations came from four whistleblowers close to his office who complained to one EALA MP. On 7 June 2024, he was officially replaced as EAC Secretary-General by Veronica Nduva. ==Other considerations==