Jay spent 40 years in international finance, with a primary focus on managing investments in sovereign debt, including the distressed sovereign debt of Latin American, Eastern European, African, and Asian countries. He is viewed as “the mastermind” behind an historic 15-year fight to recover billions of dollars in defaulted debt from the government of Argentina. That campaign, which included the court-approved seizure of an Argentinian Navy ship in Ghana with 200 people aboard in 2012, reached a successful conclusion in 2016.