Conor attended Dun Laoghaire National Film School between 1998 – 2001, where he specialized in directing and editing. He’s made numerous short films, music video’s and documentaries.

He edited a 50-minute feature length documentary, Ma Filia Fa La Madonna. Furthermore,Conor directed and edited How to Make a Fresh Film, a 20-minute documentary, funded by the Arts Council for Secondary Schools. In 2004 Conor wrote, directed and edited his first feature film Dead Meat. The film was funded by the Irish Film Board and was the first horror film to be so. Since then, he has gone on to make Stitches (2012), From the Dark (2014) and most recently Let the Wrong One In (2021). He works predominantly as an editor.