Mr Aopi has public service and business experience in PNG, including Secretary of Finance and Planning and Managing Director of Telikom PNG Limited. He presently holds the position of PNG Country Chairman at Oil Search Limited and President of Chamber of Mines and Petroleum. He was previously the Chairman of Telikom PNG Limited and Independent Public Business Corporation (IPBC). He is a Director of Marsh Limited and is involved in other private sector and charitable organizations in Papua New Guinea. He has also achieved several tertiary degrees in Papua New Guinea.