McAloon played for Castleknock Celtic at youth level and attended Matt Gregg's Just4Keepers coaching school in Blanchardstown.

[2] The club were Women's National League Champions in 2019 and McAloon was named in the WNL Team of the Season,[3] although Reid Burke played in the decisive 8–1 win over Cork City[4] and the 2019 FAI Cup final defeat by Wexford Youths.

[5] The duo continued to rotate the starting goalkeeping position as Peamount United secured a League and Cup "double" in their 2020 campaign.

Reid Burke was preferred as Peamount beat Cork City 6–0 in the 2020 FAI Women's Cup Final[6] and for November's UEFA Champions League fixture with Scottish Women's Premier League club Glasgow City, which was lost on penalties after a 0–0 draw.

[7] In 2021, the goalkeeper rotation continued, with McAloon chosen to start the 5–2 UWCL defeat by ŽFK Spartak Subotica in August 2021.