Jonathan Luff is a former diplomat who served as Prime Minister David Cameron's adviser on digital strategy from October 2010 until October 2012, leaving to become a lobbyist for controversial payday lender Wonga.
In October 2012 Luff quit his Downing Street role to become Global Head of Public Affairs at Wonga.com. Luff was given clearance to begin work immediately for the company, raising fresh concerns about the 'revolving door' between government and big business. His role involves acting as an 'Adviser to the Chief Executive on Global Strategy and Public Affairs'. 
Luff has a background as a former diplomat, working for four years at the British Embassy in Paris, and a year in the Middle East Department of the Foreign and Commonwealth Office from 2009-2010.
At 10 Downing St, he was adviser to the Prime Minister on innovation and international issues, and Director of the GREAT Campaign. 
- Adam Sherwin, 'David Cameron adviser Jonathan Luff quits to join payday lender Wonga as lobbyist', The Independent, 31 October 2012.
- Jonathan Luff LinkedIn, undated, accessed 12 November 2012