The 22-year-old defender joined the Swans on a four-year deal for an undisclosed fee having spent just one season with the Tykes.
Upon his arrival at the Liberty Stadium, the former Brentford, Maidenhead United and Wycombe Wanderers centre-back admitted his progress from the Conference to the Premier League has been a little crazy.
"The last couple of seasons have been mad for me but I have enjoyed it," he told the club's official website.
"I have had some ups and some downs, but ultimately it's led me to signing for Swansea, so I am not complaining.
"Coming here is a fantastic opportunity for me. Two-and-a-half or three years ago I was playing in the Conference.
"It's a big leap, a big step up for me, even from the Championship, but it's an opportunity I am going to try to grab with both hands.
"I think having confidence is massive. I genuinely feel I can make the step up, although I know that only time will tell.
"I am sure I will learn things about myself and my game, but I am here to improve as a player and a person.
"I am really looking forward to the opportunity. It's great to have been purchased by such a big club and a club I feel is very suited to me. I am just looking forward to getting going now."