Mr. Singh has served as IonQ’s Chief Financial Officer and Chief Operating Officer since September 2025, and before that served as a member of IonQ’s board of directors since December 2021. Mr. Singh served as Executive Vice President and Chief Financial Officer of Arm Limited, a British semiconductor and software design company, from 2019 to 2022, where he led the global finance organization as well as corporate IT operations, procurement and enterprise security teams. From November 2016 to April 2019, Mr. Singh served as Senior Vice President and Chief Financial Officer, and from March 2016 to November 2016, as Chief Strategy and Marketing Officer, of Unisys Corp., a publicly listed company. Prior to that, Mr. Singh was a Managing Director at SunTrust Bank’s equities unit, and a Senior Vice President in finance at Comcast Corporation. Mr. Singh is currently a member of the board of directors of John Wiley & Sons, Inc., a publicly listed publishing company, and of Affinity Federal Credit Union, a U.S. financial services firm. Mr. Singh has also advised startups as a member of Columbia University’s Entrepreneurship Advisory Board, and participates as a project advisor for the U.S. Department of Homeland Security on national security and critical infrastructure issues. Mr. Singh received an M.B.A. in finance from New York University and holds M.S. and a B.S. degrees in engineering from Columbia University.