Coniglio also played junior football for Upper Swan Junior Football Club, falling into Swan Districts' WAFL recruitment zone. He made his senior debut for Swan Districts against Perth in round 22, 2010, at Steel Blue Oval, gathering 26 possessions and kicking two goals. In September 2011, Coniglio confirmed he would nominate for the 2011 National Draft, ending speculation about which sport he would choose to play professionally. Considered likely to be selected by with one of the first five picks in the draft. Coniglio was selected by Greater Western Sydney with pick two in the draft. He made his senior debut for the club in round one of the 2012 season, recording 17 disposals in a 63-point loss to . In round seven, after a 31-possession game in Greater Western Sydney's inaugural win over , Coniglio was nominated for the 2012 AFL Rising Star. Midway through the season, he injured his thumb, and missed four games after undergoing surgery. In total, he played 12 games for Greater Western Sydney in his debut season, spending parts of the latter half of the season with the club's reserves team in the North East Australian Football League (NEAFL). At the end of the 2019 season Coniglio qualifing as a free agent. Despite many rumours that he would leave and join a Victorian based club, Coniglio had rejected massive offers from Carlton and Hawthorn and had re-signed with the Giants for a further seven years.  ! scope="row" style="text-align:center" | 2012 ! scope="row" style="text-align:center" | 2013 ! scope="row" style="text-align:center" | 2014 ! scope="row" style="text-align:center" | 2015 ! scope="row" style="text-align:center" | 2016 ! scope="row" style="text-align:center" | 2017 ! scope="row" style="text-align:center" | 2018 ! scope="row" style="text-align:center" | 2019 ! scope="row" style="text-align:center" | 2020 ! colspan=3| Career ! 134 ! 80 ! 56 ! 1742 ! 1555 ! 3297 ! 516 ! 633 ! 0.6 ! 0.4 ! 13.0 ! 11.6 ! 24.6 ! 3.9 ! 4.7