As CEO of World Vision Australia, Tim leads an organisation of about 560 staff, with an annual income of about $350 million, and 400,000 children overseas sponsored by Australians. Tim has long been the voice of social conscience for many Australians, having led debates on issues such as gambling, urban poverty, homelessness, reconciliation and substance abuse.
Tim studied law and education at Monash University, followed by theology at the International Baptist Seminary Rueschlikon in Switzerland, and a Master’s in Theology at the Melbourne College of Divinity. He has been a Baptist Minister in St Kilda, and in the city at Collins St Baptist Church. Tim continued to serving the local community by successfully running for Mayor of St Kilda in 1993, ending with the State Government's disbanding of councils shortly afterwards. He founded Urban Seed, a not-for-profit Christian outreach service for the urban poor.
In July 2004, Tim was named Victorian of the Year 2004. In June 2005, he was made an Officer of the Order of Australia (AO). Tim is currently Chairman of the National Australia Bank's community advisory council, a member of the Alcohol Education and Rehabilitation Foundation, and Chairman of the Community Council for Australia, a peak body for the Not For Profit sector.