On 17 May 1967, Jolliffe was
commissioned into the
Royal Army Medical Corps as a
second lieutenant (on probation) as part of his medical cadetship. He was given the
service number 484099. He was transferred to a pre-registration commission on 16 May 1969 and was promoted to
lieutenant (on probation). On 7 July 1970, his commission was confirmed and he was promoted to
captain. He served as a regimental medical officer with 23 Para
Field Ambulance from 1971 to 1973 and with
2nd Battalion, Parachute Regiment from 1973 to 1974. He transferred to a regular commission on 9 September 1976. He was given seniority in the rank of captain from 7 July 1970 and in the rank of major from 7 July 1975. In 1982, he was appointed
consultant advisor in
dermatology to the army, He was
Commanding Officer of the
British Military Hospital in Hong Kong from 1986 to 1989. He was elected a Fellow of the
Royal College of Physicians in 1987. He was Commanding Officer of
Cambridge Military Hospital,
Aldershot from 1993 to 1994. He was
Chief of Staff of the
Army Medical Directorate from 1996 to 1999. From 1999 to 2000, he was Commander of Medical HQ,
Land Command. He retired from the
British Army on 23 July 2003. ==Later life==