His mother was a flight attendant working for the then King of Bahrain, Sheikh Isa bin Salman Al Khalifa.

[9][contradictory] In 2016, McNulty played club rugby for UCD in Division 1A of the All-Ireland League, under head coach Andy Skehan.

[12] In 2016, McNulty was part of the Ireland national rugby sevens team when they attempted unsuccessfully to qualify for the 2016 Olympics.

[13] In 2017, McNulty remained with the Ireland squad where he played in the Rugby Europe 2017 Sevens Grand Prix Series.

[21] In April 2019, McNulty – who is a long-time avid photographer[5] – won a position as a Royal Caribbean Cruise Line Instagram apprentice, which funded travel around the world for three weeks during the summer of 2019.

[21] As a Shore Explorer, McNulty visited shore-based locations around the world as part of a promotion of land-based offerings of the cruise line.

[23] In 2020, McNulty joined TV broadcaster Darren Kennedy, stylist Lawson Mpame, Men's Circle Facilitator Darragh Stewart and coach Pat Divily as ambassadors for Movember.