His focus is on financial regulation. From 2009-10, he was a senior policy advisor and financial restructuring expert at the U.S. Treasury Department, where he focused primarily on financial stability initiatives and capital markets policy. Before joining the Treasury Department, he was a risk-arbitrage trader at Citadel Investment Group, a Chicago-based hedge fund. He previously served as a vice president in the investment banking division of Merrill Lynch & Co., where he specialized in strategic and capital-raising transactions for financial services companies. He began his career as a mergers and acquisitions attorney at Wachtell Lipton Rosen & Katz.