Sergeant Major Furnari graduated from Boot Camp in August 2000. After attending Infantry Training Battalion, SOI West, and receiving the MOS of 0311, he reported to 2nd Battalion, 5th Marine Regiment, in Camp Pendleton, CA, where he served as a Fire Team Leader and Squad Leader, with Company F, including deployments with the 31st MEU, and OIF. Sergeant Major Furnari's other operational assignments include: Squad Leader and Sniper Platoon member, Charlie Company and H&S Company respectively, 1st Battalion, 2nd Marines, from 2004-2006, including deployments with the 22nd and 24th MEU(SOC), participating in Operation Iraqi Freedom on both deployments; from 2008-2009 as a Platoon Sergeant with E Company, 2nd Battalion, 5th Marines, deploying as part of the BLT on the 15th MEU (SOC); from 2012-2013 as a CAAT Platoon Sergeant with 3rd Battalion, 5th Marines, Weapons Company, once again deploying as part of the BLT on the 15th MEU (SOC); from 2013-2016 as a CAAT Platoon Sergeant, 1st Battalion, 7th Marines, Weapons Company, in support OEF, and as a Company Gunnery Sergeant for Company B, in support of OIR; from 2020-2023 as the Battalion Sergeant Major for Combat Logistics Battalion 26, deploying as part of the LCE on the 22nd MEU (SOC); and currently as the 13th Marine Expeditionary Unit Sergeant Major, which is currently operating in the Indo-Pacific Region as Marine Rotational Force - Southeast Asia.
His service outside the operating forces includes duty as an Urban Assault Leaders Course instructor at Division Schools, 1st Marine Division from 2006-2007; Chief Instructor, Infantry Machine Gun Leader Course, AITBN West, 2010-2012; Company First Sergeant at the MCMWTC, Bridgeport, CA, 2016-2020; and as an Inspector-Instructor Sergeant Major, Combat Logistics Battalion 23, JBLM, WA, from April 2023 to July 2024. Sergeant Major Furnari is a graduate of the Infantry Squad Leaders Course, Infantry Unit Leaders Course, Cavalry Leaders Course, Marine Corps Winter Mountain Leaders Course, Legal Officer Course, Senior Enlisted PME, and Cornerstone.
His awards include the Meritorious Service Medal with gold star, Navy and Marine Corps Commendation Medal with gold star, Navy and Marine Corps Achievement Medal with gold star and Combat Distinguishing Device, and the Combat Action Ribbon with gold star.