Filip Kurto joins the Bulls after previous stints at Western United and Wellington Phoenix.
The signing of the 190cm Polish goalkeeper comes just days after ex-Socceroos shot-stopper Federici announced he was hanging up his gloves with immediate effect due to injury.
That decision left Macarthur with only 21-year-old Nick Suman on their books as senior goalkeepers.
Kurto, 30, was named goalkeeper of the year after an impressive campaign with the Phoenix in 2018-19 but was released by Western United in June after an injury-marred season which included repeated bouts of concussion.
Bulls coach Ante Milicic said Kurto's experience will be a plus for his side heading into the new campaign.
"Filip will bring his invaluable European and A-League knowledge and experience to our squad," Milicic said.
"Alongside Nick Suman he will give us tremendous security in the goalkeeping department.
"He has been outstanding in his A-League journey so far and I look forward to watching what he can bring under the guidance of myself and (goalkeeping coach) Glen Moss for the upcoming season."
Macarthur open their second ALM season against the Phoenix at Campbelltown Stadium on November 21.
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Image: Robwingfield, CC BY 3.0, via Wikimedia Commons