Warren has extensive experience working within State Government, as an adviser in the Gallop and Carpenter Governments. During this period he held various roles working for the former Minister for Planning and Infrastructure, Alannah MacTiernan on matters as diverse as planning, infrastructure development, ports and public transport.
Before joining CME, Warren has been working with the WA Local Government Association, representing Local Government in the areas of Planning and Community Development, as well as Infrastructure, Transport and Roads.