Wambua is a Bachelor of Arts (Economics) graduate and a Certified Public Accountant (CPA) with 18 years post-qualification experience.
A member of the Institute of Certified Public Accountants of Kenya (ICPAK), he has more than 23 years working and business experience in Accountancy,
Audit and Financial Analysis and Management.
He has worked with PricewaterhouseCoopers, in senior management with Marshalls Peugoet and over fifteen
years with Rubicon/Extra Solutions, including two years on secondment as the Transitional Finance Director
at McCann Erickson in Kenya and Tanzania and two and a half years at Unga Group as the Group Finance Director.