City said on Twitter: "We welcome former Orlando Pirates physical trainer Japhet Borges Neto into our technical team; comes with 10 years' wealth [sic] of experience in South African football."
Borges previously had a stint at National First Division outfit Royal Eagles after ending a five-year stay with Pirates in June 2015.
The Brazilian, who will work under head coach Bernard Molekwa, also plied his trade at Moroka Swallows.
Rise and Shine will look to pull clear of the relegation zone when they resume their campaign against log leaders Mamelodi Sundowns at Old Peter Mokaba Stadium on Saturday (15h30).
Molekwa will have the extra firepower of new Zimbabwean signing Dominic Chungwa for the second half of the season.