Smith will also link up at Welsh Fire with England batter Jonny Bairstow, who is looking to return to the international one-day set-up.
“He is a class player, particularly with the white ball. He smacks it around the park,” said Smith.
“I saw recently he said he wants to get back into the England white ball set-up, so I am sure he has a bit of a point to prove.
“He is going to come out nice and aggressively and I am looking forward to spending some time in the middle with him.”
Smith has his own international ambitions as he looks to make the Australia T20 team for the Los Angeles Olympics in 2028.
He has already experienced cricket in the United States of America. He has a close relationship with Washington Freedom owner Sanjay Govil, who has bought a 50% stake in Welsh Fire.
Freedom won the second season of Major League Cricket (MLC) with Smith as skipper and Ricky Ponting as coach.
“It is great for the game there are so many tournaments around the world as we try to grow the game,” said Smith.
“I have played in the MLC in the USA, which is a market that has been untapped for a long time and that was good fun.
“Having the opportunity to go and play in different places around the world is cool and see how different people prepare and it no different with Welsh Fire.
“I am looking forward to seeing how Jonny Bairstow goes about his business and what makes Tom Abell tick and how they train and play.
“That is one of the reasons I like playing in these tournaments so much.”
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