John Marcello

John Marcello is a highly experienced engineer with a focus on mechanical and nuclear engineering. Currently serving as Chief Test Engineer at General Dynamics Electric Boat since September 2023, John has previously held the position of Senior Principal Engineer - Systems at Northrop Grumman from January to October 2023, where John led systems engineering integration and testing. Prior to that, John worked at General Dynamics Electric Boat from July 2012 to January 2023 as both Assistant Chief Nuclear Test Engineer and Engineering Specialist - Nuclear Test. John's career began as a Mechanical Engineer at Adarza BioSystems, Inc. from August 2011 to July 2012. John holds a Master of Engineering in Mechanical Engineering from Rensselaer Polytechnic Institute (2014-2017) and a Bachelor of Science in Mechanical Engineering from Rochester Institute of Technology (2007-2012).