Johnson is the Managing Director of Milango Financial Services, which is a microfinance institution that provides one stop servicing for various financial and training needs. Milango has reached over 10,000 clients and given over 13,000 loans valued at $4.5 million. Johnson has worked in microfinance at the Center for International Development and Research, Faulu Kenya, and Focus Kenya. He holds a Bachelor’s of Education from Maseno University.