Neil Konrad Robert Irvine-Hess progressed through the age grades playing for Edinburgh at under-16, under-17 and under-18. With his school team, George Watson's College, he was runner-up in the Brewin Dolphin Scottish Schools Cup in 20011/12 and won the trophy in 2012/13.
A member of Scottish Rugby's Regional Academy in 2011/12 and 2012/13, he was part of the Scotland under-18 squad in 2011/12 and won man of the match in the game against Wales before continuing in the squad for season 2012/13.
His under-20 international debut came against Ireland, off the bench, in the 2014 6 Nations opener in Athlone, and he scored his first try in the IRB JWC play-off against Italy.
He played in all five of Scotland under-20s' games in the 2015 Six Nations Championship, starting in the backrow for all games apart from the opener in France.
His try against Ireland under-20 in the final game of the 2015 tournament was vital in securing his sie's third win of the tournament, and their highest every Championship placing.
In summer 2013 he joined Edinburgh Rugby on an elite development player (EDP) contract and is also aligned to Watsonians, before moving to BT Premiership club Melrose, for the 2014/15 season.
Outwith rugby, he has played cricket for Scotland at under-15 level.