Captain McCabe is a qualified Master Mariner (Trinity College) who has extensive maritime experience in a variety of senior roles throughout a 35 year career with the Commissioners of Irish Lights. Among the roles undertaken by Captain McCabe during this period included serving as the First Master of the ILV Granuaile, before later being appointed to a variety of management positions within the Commissioners of Irish Lights, including Assistant Inspector, Deputy Head of Marine, Head of Marine, and Director of Operations and Navigation. He has also served as the President of the Irish Chamber of Shipping and the International Chamber of Shipping (ICoS), and is a current member of a number of marine bodies, including the Nautical Institute and the Royal National Lifeboat Institution (RNLI).