In 1993 he returned to New York and spent two years as the deputy New Zealand representative to the UN and the UN Security Council.
On his return to New Zealand in 1995, he joined the Auckland office of Buddle Findlay as a senior solicitor, becoming a partner in 1996.
Justice van Bohemen joined the partnership of Chen Palmer & Partners in 2004.
He returned to the Ministry of Foreign Affairs and Trade in 2005 as director of the legal division and international legal adviser to the New Zealand Government and became the deputy secretary responsible for Multilateral and Legal Affairs in 2010.
In May 2015 Justice van Bohemen was appointed New Zealand's permanent representative and ambassador to the UN and New Zealand's representative to the UN Security Council.
The new Judge will sit in Auckland.