Olayinka has a Bachelor of Education in English from Adeyemi College of Education, Obafemi Awolowo University, Nigeria, West Africa as well as a Master's in Education from the University of Ibadan, Nigeria. She also has a Child Development Associate certificate. She taught middle schoolers for some years before becoming an Administrative Officer at the Federal University of Technology, Akure, Nigeria.
In the United States of America, Olayinka taught preschoolers in ACCAP Headstart for some years before opening the Kumon Math and Reading Center of Brooklyn Park, Minnesota in 2018. She has a passion for instilling knowledge in students and seeing them succeed.