As the head of the civil service, Muthaura has been the nerve center of Kenyaâs public service. He has held several senior positions in government before finally rising to the pinnacle of the public service.
He has worked as District Officer (DO) in Mombasa district, Assistant Secretary in the Ministry of Foreign Affairs, Kenyaâs diplomatic missions in New York and Brussels, Under Secretary and Head of Economic division in the Ministry of Foreign Affairs.
He has also been the Kenyaâs Ambassador to Belgium, Luxemburg and European Community, Kenyaâs Permanent Representative to the United Nations (UN), New York, Secretary General and East African Cooperation.
He has served as the PS in the Ministry of Transport and Communication, Environment and Natural Resources, Provincial Administration and National Security in the Office of the President (OP).
He is one of those who received regular intelligence briefs on the possible violence that would break out. He is also accused of having attended a meeting at State House that planned retaliation in Naivasha.
His political history can be described as meteoric, having risen from relative obscurity in the 1990âs to a position of significance within a short period.
Enjoying a near fanatic following among supporters from his ethnic Kalenjin community, Ruto, 44, considers himself fit to be president.
The deputy ODM leader is remembered for his vehement opposition to the plan by the chairman of the disbanded Electoral Commission of Kenya Samuel Kivuitu to announce the results for the presidential election in 2007 because ODM believed they were not true.
At one point during Kivuituâs attempt to announce the final result at a media briefing at KICCâs Aberdare room, Ruto, who had got hold of a microphone, told Kivuitu: "We have a different tally of the results from Molo other than the one you have read. You cannot continue reading results which are not real!"
Rutoâs name was linked to the post election violence by a report that was prepared by the Kenya National Human Rights Commission.