After retiring as a player, Kajoba pursued a coaching career, obtaining a UEFA B license in England. He returned to Uganda and joined
Simba FC’s technical bench, eventually becoming the head coach. Kajoba also served as the goalkeeping coach for the Uganda Cranes, contributing to their qualification for the Africa Cup of Nations in 2017 and 2019. Kajoba’s coaching career included stints with
Vipers SC, Solitilo Bright Stars, and Tanzania’s Ihefu FC. He was known for mentoring several top Ugandan goalkeepers, including
Denis Onyango,
Robert Odongkara, and
Jamal Salim Magoola. == Personal life ==