Lieutenant General Chiarotti was commissioned December 21, 1985. Following graduation from The Basic School and Basic Motor Transport Officer Course, he was assigned to 1st Low Altitude Air Defense Battalion, Marine Air Control Group 18, Okinawa, Japan. During this tour, he served as the Battalion Motor Transport Officer, S-4 Officer, and 2d Platoon Commander, Bravo Battery (Stinger Gunner). In May 1989, he was assigned to Headquarters and Service Battalion, Marine Corps Recruit Depot, San Diego, California and served as Operations Officer, Assistant Chief of Staff G-4, and Depot Motor Transport Officer. In June 1992, Captain Chiarotti was selected to attend the Amphibious Warfare School, Quantico, Virginia. Upon graduation, he was assigned to Camp Pendleton, California for duty with 7th Motor Transport Battalion, 1st Force Service Support Group as Commander of both Alpha and Headquarters and Service Company. Additionally, he served as Operations Officer, Combat Service Support Detachment 17. Upon transferring to MEU Service Support Group (MSSG) 15, he was assigned as the Operations Officer and subsequently deployed with the 15th Marine Expeditionary Unit (Special Operations Capable) (MEU (SOC)). He deployed in support of WestPac in 1995.
In 1996, he was assigned to Combat Service Support Detachment (CSSD) 36, Iwakuni, Japan, for duties as Executive Officer. In June 1999, he was selected to attend the Naval Command and Staff College, Newport, Rhode Island. Following graduation in June 2000, Major Chiarotti was assigned to Marine Corps Forces, Europe, Stuttgart, Germany as the Southern Region Logistics Plans Officer. In August 2001, Major Chiarotti reported for duty as Plans Officer, Plans and Policy Division, Logistics and Security Directorate, Headquarters, U.S. European Command. Following the events of September 11, 2001, he served as Watch Officer, Crisis Action Team, European Theater Command and Control Center. Subsequently, he served as the Branch Chief, Logistics Support Operation, responsible for the planning and execution of logistics support operations in support of OPERATION ENDURING FREEDOM and OPERATION IRAQI FREEDOM from within the European area of responsibility.
In May 2003, Lieutenant Colonel Chiarotti was assigned to 2d Force Service Support Group. He deployed as the Officer-in-Charge, Transport Support Detachment, Special Purpose Marine Air-Ground Task Force, Camp Fox, Kuwait. Returning in November 2003, he assumed duties as Deputy, Assistant Chief of Staff, G-3. In March 2004, he deployed in support of OPERATION SECURE TOMORROW as the Director for Logistics, Combined Joint Task Force, Haiti. Returning from Haiti in July 2004, he assumed command of MSSG-22 and was deployed in support of Revised Combined Arms Exercises 3 through 14, Camp Wilson, Twenty-nine Palms, California from September 2004 to March 2005. In May of 2005, MSSG-22 became part of 22d MEU (SOC). Lieutenant Colonel Chiarotti deployed MSSG-22 in support of OPERATION IRAQI FREEDOM in support of the 22d MEU (SOC).
He was selected for and successfully completed a Fellowship at Smeal School of Business, Pennsylvania State University, State College, Pennsylvania, and was subsequently transferred to Okinawa, Japan on 7 July 2007, where he assumed command of Combat Logistics Regiment 3, 3d Marine Logistics Group, III Marine Expeditionary Force (MEF). Following this assignment, he was assigned as the Assistant Chief of Staff, G-3 until his reassignment to United States Central Command as Chief of Staff, Logistics Directorate.
In August of 2011, Brigadier General Chiarotti was assigned to U.S. Marine Corps Forces, Europe and U.S. Marine Corps Forces, Africa as Deputy Commander. Brigadier General Chiarotti was subsequently assigned as the Deputy, J-5 Plans and Strategy and finally the Director, J-5 Plans, Strategy and Programs for U.S. Africa Command until his assignment to II MEF as Commanding General, 2d Marine Logistics Group from June 2014 to June 2016.
In June 2016, Major General Chiarotti was assigned duties as Deputy Commander, United States Forces, Japan. June 2018, Lieutenant General Chiarotti was transferred to the Pentagon to assume the duties as Deputy Commandant, Installations and Logistics.
Lieutenant General Chiarotti holds a bachelor's degree in psychology and a master's degree from the Naval War College, Newport, Rhode Island.
His personal decorations include the Defense Superior Service Medal (with oak cluster in lieu of second award), Legion of Merit, Bronze Star (with Gold Star in lieu of second award), the Defense Meritorious Service Medal (with oak cluster in lieu of second award), the Meritorious Service Medal, the Joint Service Commendation Medal, the Navy and Marine Corps Commendation Medal (with gold star in lieu of second award), and the Navy and Marine Corps Achievement Medal. Lieutenant General Chiarotti was also awarded the French National Defense Medal (Silver Award