Chloe Smith has been appointed economic secretary to the Treasury as part of David Cameron's mini-reshuffle following the resignation of defence secretary Liam Fox.
The 29-year-old MP for Norwich North has had a meteoric rise through the ranks, having only entered Parliament in a 2009 by-election caused by the resignation of Labour MP Ian Gibson in the wake of the expenses scandal.
The post of economic secretary is the fifth most senior at the Treasury under George Osborne.
Smith will have responsibility for a wide range of issues including taxation of transport, North Sea oil, child poverty and the EU Budget.
Tipped for big things from the moment she set foot in Westminster, she was made an assistant government Whip following the general election in 2010.
Seen as a Cameron Conservative, Smith is a member of the Tory Reform Group which favours a Conservative Party that that pursues economic efficiency and social justice, equality, diversity and supports civil liberties.
The York University graduate worked as a consultant for Deloitte from 2004 until her election in 2009, when at 27 she became baby of the House.
Smith fills the post vacated by Justine Greening who has been promoted to transport secretary, following the departure of Philip Hammond to the Ministry of Defence.