Hastings, who retired from first-class and one-day cricket last year, played seven years with the Melbourne Stars and captained them last season.
But after a last-placed finish in 2017, the pacer has decided to head north to Sydney.
"It is nice to be back in Sydney actually, it brought back a lot of nice memories walking through that NSW cricket office," Hastings was quoted as saying by cricket.com.au.
"I've got an opportunity to come back and play with a lot of close friends of mine, Stevie O'Keefe was best man at my wedding and Moises Henriques and I played a lot of cricket together as juniors and Pete Nevill is one of my good mates as well," he added.
The move will see Hastings rejoin his former Victoria coach Greg Shipperd.
(This story has not been edited by Social News XYZ staff and is auto-generated from a syndicated feed.)
