For two decades, David served as one of the leading national security prosecutors, overseeing some of the US Department of Justice’s most sensitive and complex international investigations. He also spent more than four years as a partner at an international law firm, where he represented multinational banks, corporations, and high-profile individuals against federal prosecution and regulatory enforcement actions.
Most recently, David served as Senior Counsel to the Assistant Attorney General for National Security, where he oversaw investigations and prosecutions targeting the Hamas terrorist organization in the wake of October 7, 2023 attacks in Israel and provided advice on mission-critical initiatives in areas of counterintelligence, counterterrorism, foreign investment review, cyber threats, sanctions, and export control. His work often involved coordination with intelligence agencies and foreign governments.