Dr. Roxy Senior, began his medical training in Calcutta, India. Between 1979 and 1988, Dr. Senior worked firstly as a Senior House Officer, then as a Registrar in General Medicine, then as a Registrar in Cardiology and General Medicine and finally as a Post-doctoral trainee in Cardiology.

In 1998, Dr. Senior moved to London, firstly to Hammersmith Hospital and then to Northwick Park Hospital where he became a Research Fellow in Department of Cardiology. In 1991, Dr. Senior became Honorary Registrar in the Department of Cardiology before becoming Honorary Senior Registrar two years later. In 1995, Dr. Senior took up his current position as Consultant Cardiologist, Director of Cardiac Research and Director of Echocardiography in the Department of Cardiology at Northwick Park Hospital.