Based in Three Crowns' Washington office, he was previously based for more than 25 years in Paris, where he headed the global arbitration and public international law groups at a large international law firm, which for many years under his leadership held first place in the Global Arbitration Review list of 100 top international arbitration practices. He has acted as advocate or arbitrator in hundreds of arbitrations in all familiar venues.
Jan is a past President of the London Court of International Arbitration and the International Council for Commercial Arbitration and has served as a Vice-President of the ICC International Court of Arbitration.
A graduate of Harvard College, Yale Law School (where he was an editor of the Yale Law Journal), and the University of Paris (Sorbonne), Jan holds the Michael Klein Distinguished Scholar Chair as professor of law at the University of Miami. He has written a number of well-known textbooks on international arbitration.