[19][20] Campher made his first-class debut on 26 February 2021, for Ireland Wolves against the Bangladesh Emerging team.
[23] In September 2021, Campher was named in Ireland's provisional squad for the 2021 ICC Men's T20 World Cup.
[25] Campher also became the third bowler, after Lasith Malinga and Rashid Khan, to take four wickets in four balls in a T20I match.
[26] He was named in Ireland's Test squad for their tours of Bangladesh in March 2023 and Sri Lanka in April 2023.
[33] Campher signed a short-term deal to play white ball cricket for Gloucestershire in August 2024.