Arnold has almost 30 years of experience in business and not-for-profit organisations, is multilingual and has an international focus. Since 1997 he has been operating on Board level (COO and CEO) in Europe (Netherlands, Belgium and Germany), US (Boston, Massachusetts) and in Australia (WA, QLD, NSW and VIC). He is an experienced manager, leader and strategist. His strength is in developing organisations often with an innovative approach. He is on the Board of Alzheimers Australia WA since 2012, is founding Chairman of Spacecubed and is on the Advisory Board of WA Museum. From 2009 -2017, Arnold was appointed as the Honorary Consul of The Netherlands to WA. As the Consul he represented The Netherlands in Western Australia and actively supported the economic development, the collaboration between universities and the mutual cultural heritage of both countries.