Williams previously represented the Greater Western Sydney Football Club, playing 113 games over eight seasons from 2013 to 2020.

Williams earned a nomination for the 2013 AFL Rising Star award and has played the 14th most games for Greater Western Sydney Club.

[4] Williams attended Narrandera High School and grew up playing an array of sports, including basketball, rugby league, and AFL.

In round five of the 2013 AFL season, Williams made his debut at age 18, representing Greater Western Sydney Giants against the Gold Coast Suns at Manuka Oval.

[1] Williams went on to play 11 games that season, and earned the round 19 nomination for the 2013 AFL Rising Star award.

[16] Following injuries of Steve Johnson and Devon Smith, Williams then played as a forward and responded with three goals against Essendon in round 11.

[16] Towards the end of the season Williams resumed his usual position as a defender, and dominated in round 21 against Western Bulldogs with disposables (27) and rebounds (50).

[1] Williams was unable to play the majority of the 2018 season after rupturing his Achilles tendon in a training session, which required surgery.

[7][1][17] He averaged a career high 24 disposals in the season and was fifth in line for the best and fairest award for Greater Western Sydney Giants.

[18][7] Williams played in Greater Western Sydney Club's first ever grand final against Richmond, with disposals (21), highballs (10) and uncontested possessions (13).

[19] On 30 September 2020, Williams accepted a six-year contract, valued at $900,000 a season from Carlton Football Club, after Greater Western Sydney Giants chose to not match the bid.

[20][21] Williams plans on playing as a midfielder in his career with Carlton, after showing great potential in the 2019 preliminary final against Collingwood.