Nuwagaba has been a member of the teaching staff at Makerere University, since he returned from his master's degree studies in London in the early 2000s. He serves as the chairperson of the Makerere University Academic Staff Association. He also serves as the Managing Consultant at Reev Consult International Limited, a private consultancy firm, incorporated in Uganda in 2000. The company offers consultancy services in the areas of impact assessments, planning, social policy analysis, management services and institutional development services. The overall objective of the company is to achieve capacity development and poverty reduction in the geographical areas that they serve. Over the years, Reev Consult has provided consultancy services to International organizations including the World Bank, European Union, UNDP, USAID, DFID, UNFPA, DANIDA; SNV, IDRC, African governments, CSOs and the private sector. He has been a key note speaker at both National and International level (Uganda celebrating 50 year, Dublin International conference, Orienting of 9th and 10th parliament of Uganda). Augustus Nuwagaba has been married to Lillian Nuwagaba since 1997. Together they are the parents of four children. He is of the Christian faith. He is a Rotarian with Rotary Club of Muyenga district 9211 (Major Donor).