As reported on 10 September 2026, the Cabinet Secretary, with the approval of the Foreign Secretary and the Prime Minister, announced Lindy Cameron's appointment as Permanent Under-Secretary at the Foreign, Commonwealth and Development Office. The role is a Permanent Secretary level appointment offered on a fixed tenure basis for five years. Cameron had been British High Commissioner to the Republic of India since April 2024.

Foreign Secretary Ed Miliband described Cameron as the first female Permanent Under-Secretary at the FCDO and thanked Nick Dyer for serving as Interim PUS. Cabinet Secretary Dame Antonia Romeo cited Cameron's record in security, diplomacy and international development. Cameron said she was proud to lead the department's diplomats and development professionals, and that arrangements for appointing her successor in India would be announced in due course.

The announcement said the appointment followed an external recruitment exercise led by the independent Civil Service Commission. Cameron previously served as chief executive of the National Cyber Security Centre from 2020 to 2024, after roles at the Northern Ireland Office and the Department for International Development.