After completing his B.Ed in accounting & mathematics, Mwanga worked with two charities that help the homeless. This experience gave birth to the desire to see homeless children and youth reunited with their families and empowered to fulfill their God-given dreams. He firmly believes that family care should be prioritized, and it is our responsibility as Christians to work to rescue children and youth from the streets and reunite them with a functional family, whether primary, extended, or foster. Together with his wife, they are heavily involved in mentoring young people and introducing couples to Homebuilders, a Bible study for couples.