The hooker was let go by the Sharks at the end of last season after a two-year spell at the club.
There was interest in Segeyaro over the summer, with the Newcastle Knights said to be looking at the 28-year-old.
But nothing came of it, which forced the Papua New Guinea international to take work as a barista to make ends meet.
But now after agreeing to a one-year deal, the former Cowboys, Penrith and Leeds rake will join the Brailey brothers — Jayden and Blayke — in competing for the Sharks’ No 9 jersey.