In the 2021 season he found a regular place in the middle-order for Essex in the County Championship, being notable for his consistency.
He started the 2022 season in the second XI with new signing Matt Critchley taking his spot in the middle order.
Returning to the first team after injury to Dan Lawrence, he made 93 against Northants to help save the match and secure his place in the side.
[4] Walter signed with the Brisbane Heat for BBL13, where he quickly became a cult hero, making key contributions with bat and ball in a number of games, notably winning the Player of the Match Award in wins against the Melbourne Renegades and Sydney Sixers.
Walter's return to Brisbane for BBL14 was less successful, having been dropped after making five appearances, taking just two wickets and going at an economy rate of greater than 10 runs per over.