Mr. Olajide was born at Ebute Meta, Lagos on the 17th November, 1964 though hailed from Oyo State.
He attended Ijero Baptist Primary School Ebute Meta where he finished with the primary school leaving certificate in 1976 before proceeded to the popular Oliver Baptist High School, Oyo.
Olajide bagged his ND in 1986 from Yaba College of Technology while his HND was from Kwara State Polytechnic, Ilorin in 1989 and crowned it with a Masters Degree in 2015 from Olabisi Onabanjo, Ago-Iwoye. Ogun State.
He had previously worked with windmill ventures from 1991 till 2000 before securing employment with the Lagos State Government as a Planner in 2001.
Olajide is a member of National Statistical Association of Nigeria, He is a Fellow Association of Human Resources Practitioners of Niger. He plays football at leisure.