His parents, William and Diana Oigara, were both schoolteachers and tea farmers at the Gesima Settlement Scheme in Borabu, where he was raised.
[4] After high school, he was admitted to the University of Nairobi for a Bachelor of Commerce degree, majoring in Accounting.
[4] Later, he obtained a Master of Business Administration degree from Edith Cowan University, in Perth, Australia.
[3][4] In 2002, he left PwC and took up employment at Bidco Africa as the Group Business Performance Manager.
In the process, he rose to the position of group finance director and chief financial officer.
In his current position, he oversees group banking operations in Burundi, Kenya, Rwanda, South Sudan, Tanzania, Uganda and a representative office in Ethiopia.