Command Master Chief (SS/AW) Marcus A. Steimer
Naval Information Warfighting Development Center (NIWDC)
04 January 2023
Master Chief Steimer, a California native, enlisted in the U.S. Navy in February 1996. Following completion of basic training at Recruit Training Command in Great Lakes, Ill., he reported to Naval Submarine School, Groton, Conn., where he completed Basic Enlisted Submarine School and Navigation Electronic Technician apprenticeship training. His first assignment was on board USS Olympia (SSN-717) in Pearl Harbor, Hawaii, as a member of navigation division, where he completed his initial submarine qualifications and first deployment to the western pacific. In 1999, he completed the Electronic Support Measures “C” school / maintenance pipeline and converted to Communications Electronics Technician. He reported to USS Springfield (SSN-761) as a member of communications division, conducting two deployments to the Mediterranean Sea and Persian Gulf.
In 2005, he was selected for advancement to Chief Petty Officer and was assigned to USS Wyoming (SSBN-742) BLUE, where he led the communications division through five Strategic Deterrent Patrols. In 2011 he also was assigned to USS North Carolina (SSN-777) as Navigation Operations Department Enlisted Advisor for her maiden deployment to the Western Pacific. Shore duty assignments include Naval Submarine School ESM Operator “A” school Leading Petty Officer and Lead Instructor where he earned the Master Training Specialist Designation, Communications Assistant to Commander Submarine Squadron Three, and Communications Assistant to Commander Submarine Squadron One.
In 2013, he reported to USS Buffalo (SSN-715) in Pearl Harbor, Hawaii, as Chief of the Boat. His tour included seeing the ship through a major overhaul and return to readiness status which included the first short-fused mission assignment from a homeport in over ten years. Following his COB tour, Master Chief Steimer reported to Submarine Learning Facility Norfolk as Command Master Chief. In 2017, he terminated his shore duty assignment and reported as Command Master Chief of Electronic Attack Squadron ONE THREE SIX (VAQ-136), where he conducted one Western Pacific deployment and participated in the 2018 Rim of the Pacific exercise on USS Carl Vinson (CVN-71) as well as nine squadron detachments. Master Chief Steimer reported as the first Command Master Chief of Navy Cyber Defense Operations Command / CTF 1020 from August 2020 to December 2022.
Master Chief Steimer was selected to his current assignment as the first Command Master Chief of Naval Information Warfighting Development Center in December 2022.
He is a graduate of the U.S. Navy Senior Enlisted Academy (Class 168), the Command Master Chief/Chief of the Boat course, and MCPON’s Executive Leadership Symposium and holds a bachelor’s degree in business management from Excelsior University. His personal decorations include Meritorious Service Medal (two awards), Navy Commendation Medal (five awards), the Navy Achievement Medal (four awards) and various unit and campaign awards.