Retiring National Cabinet minister Simon Power will become a banking executive, heading Westpac's exclusive bank for wealthy clients.
Membership of Westpac Private Bank requires a household income of $250,000 a year and assets worth more than $1 million (excluding a family home).
Mr Power, 41, stepped down as State-Owned Enterprises Minister in April after announcing in March he would bow out of politics. But he kept hold of his Commerce and Associate Finance portfolios.
He has been in Parliament for 12 years as the MP for Rangitikei and in the Cabinet for three years. He will start his new job in January.
Labour's finance spokesman David Cunliffe said Mr Power had been serving the interests of the wealthy in the National Government anyway.