Said Jillo is a hotelier by profession. He joined Kenya Tourism Development Corporation (KTDC), a government parastatal, in 1974 and served in several game lodges. He worked at Meru Mulika lodge between 1974 and 1990, Mt Elgon lodge between 1990 and 1993, and Marsabit Lodge between 1994 and 1998.
Said was appointed and later elected as the chairman of Kenya Red Cross, Marsabit branch in 2006. In this capacity, he served communities in Marsabit during multiple ethnic clashes, the Torbi massacre, and droughts between 2006 and 2014.
He has since served as a member of the Land Control Board, as a member of the council of elders and as a village elder. He has been on the Board of HODI since 2015.