[4] In August 2018, Walusimbi moved to South African Premier Division club Kaizer Chiefs, signing a three-year contract.
[7] He made his league debut for the club on 18 September 2018, playing all ninety minutes in a 2–0 away victory over Free State Stars.
[9][10] In September 2019, Walusimbi joined Albanian Superliga side KF Vllaznia Shkodër on a one-year contract.
[13] On 16 April 2011, he helped the Uganda U23 Team to a 2–1 first leg victory over Tanzania in the All Africa Games qualifier with excellent performance in which he created the first goal with some creative work on the left flank.
The goal was the first in a 2–0 win for the cranes which saw them top Group J in front of a packed Mandela National Stadium.