Gwandu, who played for the Botswana premiership clubs in the last four years, has been resident in that country.
The tough-tackling defender came to the club for trials together with former Orlando Pirates defender Zvenyika Makonese.
The Platinum miners opted for Gwandu leaving Makonese to rejoin the former club that gave him fame, Shabanie Mine.
Gwandu was on the bench for FC Platinum when the team played Hwange last weekend.
Gwandu is set to take over in the heart of defence where Gumbo has been playing right wing back Zephaniah Ngodzo.
With his most favoured 3-5-2 formation, Gwandu will be the best person to play as the sweeper.
Speaking to Standardsport in Zvishavane last week, Gwandu said he was happy to have penned a contract with a local club.
“I have been away from home for four years, but I am happy that at last I am back home. I have watched the team playing, I think I will not have problems in adjusting because football is football. I am a professional footballer, I do not think I will need much time,” Gwandu said.
Born on August 18 1980, Gwandu started his professional football career at home with CAPS United in Harare before moving to Masvingo United.
While at Masvingo United, Gwandu joined the great trek to Botswana in search of the pula.
He played for Gaborone United before joining Gumbo at Township Roller, which they helped to win the championship, and later moved to Mochudi Centre Chiefs with Gumbo.
The two have decided to bounce back to the local league with flamboyant FC Platinum leaving Mochudi Centre Chiefs in a huff.
Much is expected from the tall-gangling defender as he is expected to challenge the heart of the defence position in the Warriors set up.