A Lenana School alumnus, Kindiki studied law at Moi University from 1994 to 1998 and later earned a Ph.D. in international law from the University of Pretoria. He began his career as a consultant, working on Kalonzo Musyoka's 2007 presidential campaign, which marked his entry into Kenyan politics.
A close ally of President Ruto, Kindiki was part of the legal team representing Ruto at the International Criminal Court and was instrumental in drafting the Jubilee Party constitution and manifestos that propelled former President Uhuru Kenyatta and Ruto to victory in the 2013 and 2017 elections.
In 2013, he was elected as Tharaka Nithi Senator under the TNA party and was re-elected in 2017.
A distinguished scholar in international human rights law, Kindiki has also consulted for organiSations such as the United Nations High Commissioner for Refugees (UNHCR) and the United Nations Development Programme (UNDP).