Lieutenant General Mahoney was born in South Weymouth, Massachusetts, and graduated from Holy Cross in June 1987. He completed The Basic School (TBS) and the Infantry Officer's Course (IOC), at Quantico, VA, graduating in March 1988.
After flight training in Florida and Texas and his qualification as an A6-E Intruder pilot, LtGen Mahoney deployed to the Indo-Pacific with VMA (AW)-224, The Bengals. He completed transition training to the F-18 at El Toro and made multiple deployments with VMFA (AW)-224 and VMFA-122 to the Indo-Pacific, Italy, and Iraq flying out of MCAS Beaufort, SC, and MCAS Miramar, CA. Additionally, LtGen Mahoney served a tour as an instructor at the Marine Aviation Weapons and Tactics Squadron-1 (MAWTS-1) at MCAS Yuma, AZ.
He has commanded twice at the squadron level as well as at the Group Level. He has served on Joint duty with the Joint IED Defeat Organization at the National Training Center, Fort Irwin, CA as the Chief of Staff and has served on the Headquarters Marine Corps Staff as the Executive Assistant to the Deputy Commandant for Programs and Resources.
His General Officer duties to date include a posting as the Deputy Commander of Marine Forces Pacific, the Director of Strategy and Plans at Headquarters Marine Corps, Deputy Commander, United States Forces, Japan and as the Commanding General, 3rd Marine Aircraft Wing.
LtGen Mahoney is currently serving as Deputy Commandant for Programs and Resources, Headquarters Marine Corps.
LtGen Mahoney is a graduate of the Weapons and Tactics Instructor Course (WTI), the Marine Division Tactics Course (MDTC), and the Naval Fighter Weapons School (TOPGUN). He is a qualified Forward Air Controller and parachutist. He attended the Australian Command and Staff College and the Air War College at Maxwell Air Force Base. He holds Masters Degrees from the University of Canberra in Australia and the Air University with the highest academic distinction. Lieutenant General Mahoney has over 5000 hours of flight time, in the A-6, F-5, F-18, and the F-35.