Dinkelspiel worked at Bankirfirman E. Öhman J:or. AB from 1957 to 1959 and from 1961 to 1962. He was an employee at
Stockholms Enskilda Bank in 1960 and became an attaché at the
Ministry for Foreign Affairs in 1962. Dinkelspiel served at the
Swedish Embassy in
Tokyo from 1963 to 1965, at the
OECD delegation in
Paris from 1965 to 1967 and at the Foreign Ministry in Stockholm from 1967 to 1975. Dinkelspiel served at the Swedish Embassy in
Washington, D.C. from 1975 to 1979 and was
state secretary at the
Ministry of Commerce and Industry from 1979 to 1981 and deputy
state secretary for foreign affairs from 1981 to 1982. He was then ambassador at the Foreign Ministry in Stockholm in 1982 and chief negotiator in
EC affairs from 1988 to 1991. Dinkelspiel served from 1991 to 1994 as European Affairs and Foreign Trade Minister in the
Carl Bildt cabinet. He became CEO of the
Swedish Trade Council in 1995. Dinkelspiel was a central figure in the negotiations for Swedish EU membership and was known as an advocate for
European integration. From the campaign for Sweden joining the
Euro, he served as chairman of the organization
Sweden in Europe. ==Personal life and death==