[2][3] On 24 February 2017, Farrugia made his senior debut for UCD in the opening game of the 2017 League of Ireland First Division season, in a 1–0 win away to Cabinteely.
[6] His first ever Premier Division goal came on 25 February 2019, when he opened the scoring in an eventual 2–1 loss away to reigning champions Dundalk at Oriel Park.
[7] Farrugia went on trial with the Manchester City U23 side during the summer transfer window but opted to remain in Ireland to complete his degree in biomedical science at University College Dublin.
[9] On 3 November 2019, he came off the bench in the 2019 FAI Cup Final, as his side won the trophy after a penalty shootout win over Dundalk at the Aviva Stadium.
[18] In May 2023, former U21 manager Stephen Kenny called him up to the Republic of Ireland senior squad for the first time, for a training camp in Bristol, England,[19] before putting him on standby for the June 2023 fixtures against Greece and Gibraltar.