Assistant Professor of Surgery, NUS (1998-2004)
Associate Professor of Surgery (with Tenure) (2004-2006)
Consultant Cardiovascular and Thoracic Surgeon, NUH (2002-2005)
Consultant Cardiothoracic Surgeon, GUH, Galway, Ireland (2006-)
Lead Surgeon, Dept Cardiothoracic Surgery, GUH, Galway, Ireland (2006-)
Clinical Lecturer in Surgery, NUIG, Galway, Ireland (2007-2012)
Hon Senior Lecturer in Surgery, NUIG, Galway, Ireland (2012-)
Hon Personal Professor of Surgery, NUIG, Galway, Ireland (2017-)
MIS Aortic valve surgery
Minimally Invasive Lung Cancer surgery
Heart failure surgery
Aortic Surgery and Endovascular/Hybrid Surgery
MCh thesis research fellowship/lecturer in surgery RCSI (1994-1996)
Pre-Fellowship Surgical Training (Dublin, Ireland, 1992-1994)
Cardiothoracic Fellowship, University of Chicago (1999-2001)
RCSI [MB, BCh, BAO(Hons) 1990]
Advanced Surgical Training (AST) Singapore 1998-2001
Dublin Cardiothoracic Training Scheme (1996-1997)