Funsho Williams joined the Lagos State civil service in 1974. Funsho Williams spent 17 years in the Lagos State Civil Service working on construction projects in Lagos State.
Over 70% of road and bridges constructed in Lagos state was constructed under his stewardship.
In 1991, Funsho Williams retired from the Lagos State Civil Service as a permanent secretary. He shortly returned to public service, as a Lagos state Commissioner under Colonel Olagunsoye Oyinlola’s Military Administratorship.
Funsho Williams was a director at Julius Berger Nigeria Plc, Cappa and D’Alberto Plc and Ajaokuta Steel Company
He Chairman of the Board of Directors of the National Maritime Authority
He joined the United Nigeria Congress Party (UNCP), but after the suspicious death of its leader, General Sani Abacha he moved to the Alliance for Democracy (AD).
Funsho Williams joined Peoples Democratic Party (PDP). He was the Governorship candidate of the Peoples Democratic Party (PDP) in the 2003 general election.
In 2006, he picked nomination form to run for Lagos state Governor under the platform of the Peoples Democratic Party (PDP) but his dream was cut short following his death in 2006.