Te Atatu MP Chris Carter says his former boss, Helen Clark, had nothing to do with his new position with the United Nations in Afghanistan's capital Kabul.
Former Prime Minister Ms Clark took up a position as the head of the UN Development Programme after losing the election in 2008.
Her position is the third highest in the United Nations.
Mr Carter is leaving New Zealand next Wednesday to take up a position as a director of the Governance Unit of the UN mission in Kabul will involve battling corruption.
"I will head a team based in the Ministry of the Interior, which advises President Karzai and his ministers on effective ways of improving local governance at the provincial level with the police and the judiciary," he said.