Michael Fotios has resigned as a non-executive director of Northern Star Resources to take up a consulting position with the gold miner.
Mr Fotios said given Northern Star's strong balance sheet and steady production it was the right time to step down from the board.
"Northern Star is now in an outstanding operational and financial position with a highly experienced board and management team which will lead the company into its next chapter of growth," he said.
Mr Fotios became a director in September 2009 shortly before the company acquired the Paulsens Gold Mine.
Chairman Chris Rowe said: "Michael has played a key role in Northern Star's rapid growth from a shell into one of Australia's leading gold miners.
"His skills and experience as a highly regarded geologist will be invaluable as we look to take full advantage of the outstanding exploration opportunities at and around Paulsens," Mr Rowe said.Northern Star shares were unchanged at 91 cents at 11.15am.