Boyce was in the
Diplomatic Service between 1968 and 2003. Boyce was
Consul-General to Sweden from 1987 to 1990. Boyce was
Ambassador and Consul-General to Qatar from 1990–1993. He served as
Ambassador to Kuwait 1996–1999 and
Ambassador to Egypt 1999–2001. After leaving the
Foreign and Commonwealth Office Boyce worked for a number of companies in an advisory capacity including being on the advisory board of
Lehman Brothers Middle East, Merchant International Group and
Invensys. He is an advisor to
Nomura,
DLA Piper, and
Air Products and Chemicals. He has also been a consultant to UK-based arms company
BAE Systems, and deputy chairman of UK-based arms company
Vosper Thorneycroft. ==Awards and honours==