John Mitsunaga

John Mitsunaga currently serves as the Chief Security Officer at Longenecker & Associates since October 2021, overseeing the corporate security program and policies. Previously, John held the position of Subject Matter Expert in Mission Assurance at Longenecker & Associates from January 2020 to October 2021, where John provided expert analysis on safeguards and security matters. Mitsunaga's career includes significant roles at the National Nuclear Security Administration as Assistant Manager for Safeguards & Security from August 2015 to January 2020, and as a Senior Physical Security Specialist at the Department of Energy from 2007 to 2015. Their earlier experience encompasses positions at Los Alamos National Laboratory and a 24-year tenure with the United States Air Force, contributing to extensive expertise in security management and emergency response.