Professor Devaja has trained at the London Teaching hospitals, completing his research and subspecialty training at St Thomas' Hospital and is currently a NHS consultant Gynaecologist at the Maidstone & Tunbridge Wells Hospitals and Consultant Gynaecological Oncology Surgeon for the Kent Oncology Centre. He consults privately at the London Bridge Hospital and Sevenoaks Medical Centre.
His special interests involves laparoscopic surgery, colposcopy, general gynaecology and the diagnosis and treatment gynaecological cancers.
He works closely with fellow consultant Mr Andreas Papadopoulos, allowing for cross-cover of patients out of hours. He has written several articles on a variety of gynaecological conditions.