Anselmo Reyes was Professor of Legal Practice at the University of Hong Kong from October 2012 to September 2018. He was called to the Hong Kong Bar in 1989, taking silk in 2001. From 2003 to 2012, he was appointed as a judge of the Hong Kong High Court, when he was in charge of the Construction and Arbitration List (2004-2008) and the Commercial and Admiralty Lists (2008-2012).
From April 2013 to July 2017, he was the Representative of the Regional Office Asia Pacific of the Hague Conference on Private International Law. He became an International Judge of the Singapore International Commercial Court in January 2015 and an Overseas Bencher of the Inner Temple in October 2015.