Zia Yusuf - who quit Reform UK last month before returning just 48 hours later - wants to be Chancellor if the party wins the next general election.
The multi-millionaire businessman is eyeing up a move to 11 Downing Street should Reform leader Nigel Farage become prime minister.
Mr Yusuf is currently leading Reform's efforts to cut public spending across councils, following the party's local elections success in May.
His work is based on the Department of Government Efficiency (Doge) set up by Tesla boss Elon Musk in the US.
But, in an interview with Politico, Mr Yusuf has revealed his grander ambitions to take charge of the Treasury should Reform win power in 2029.
