Oliver is a Consultant Urologist based at Addenbrookes Hospital, Cambridge, UK. He specialises in the treatment of kidney stones and in the management of male infertility. He is Honorary Treasurer Elect of The British Association of Urological Surgeons (BAUS), and a BAUS Trustee. He is Training Program Director for The East of England.

He qualified in Cambridge and following basic surgical training, he underwent specialist training in urology in London, including at Guys Hospital and UCLH ("The Institute of Urology"). He is regularly invited to speak at national and international urological meetings.