He works at WTI Advisors, a Geneva-based consultancy firm specializing in trade policy and law. He served as Deputy-Director General of the World Trade Organization (WTO) from 1999 to 2002. Between late 2002 and the end of 2004, he led the Geneva office of Van Bael & Bellis, an international law firm based in Brussels. During the 1990s, he was Minister of State in Venezuela, with responsibility for trade policy. He has wide experience in dealing with international trade disputes between WTO members, and has been appointed as panelist on several occasions.