Jeffrey has been a Non Executive Director of Nuix since 2017. He was Chairman of the Company from November 2020 to February 2023. In February 2023 he was appointed Deputy Chairman. Jeffrey lives in Piedmont, California, USA. 

Jeffrey has over 30 years’ experience in the legal, government, and technology sectors, and most recently served as a Court‑Appointed Special Master and Mediator in the United States District Court, before being named the Chief Legal Officer of Cruise LLC, a San Francisco‑based autonomous vehicle company. After clerking for the Chief Justice of the United States Supreme Court, Jeffrey practised law as a Partner at Munger, Tolles & Olson LLP from 1992 to 2009 and 2014 to 2016, and as both CEO of Dentons Diplomatic Solutions and a Partner in the Public Policy and Regulatory practice of Dentons international law firm from 2016 to 2019. Jeffrey’s practice focused on cyber security, technology, complex international disputes, as well as high profile pro bono matters before the U.S. Supreme Court. 

Jeffrey served four years as the U.S. Ambassador to Australia from 2009 to 2013 and as special counsel to President Obama in 2009. He has served as Board Chair of the San Francisco based Pacific Gas & Electric Company, Chair of the Fulbright Foreign Scholarship Board, Chair of the California State University Board of Trustees, President of the State Bar of California, and as a Director of a number of charitable and public policy organisations including the Australian-American Leadership Dialogue, RAND Australia, Stanford University’s Center for Advanced Study in the Behavioral Sciences, Amherst College, the American Security Project, and Futures Without Violence. 

Jeffrey holds a Bachelor of Political Science from Amherst College, a Master in Public Policy from Harvard University and Juris Doctor from the University of California Berkeley. He has also received an honorary Doctorate of Laws from San Francisco State University and honorary Doctorates from Griffith University and Flinders University.