Mr. Kelleher is the Deputy Assistant Secretary of Defense for Materiel Readiness. In this capacity, he serves as the principal advisor to the Assistant Secretary of Defense for Sustainment in the oversight of the Department’s $90 billion maintenance program. He is also responsible for the development of policies and procedures to ensure the Department meets statutory requirements to provide core depot level maintenance support of major weapon systems, military equipment, and commodities. Prior to his current position, he was the Principal Deputy Director for Strategic Logistics, Joint Staff, J-4. In his role he integrated logistics planning and operations to support global operations and advised the Chairman and Vice Chairman of the Joint Chiefs of Staff on logistics matters.

Before the Joint Staff, Mr. Kelleher was the Executive Director, Operations and Sustainment, for the Defense Logistics Agency where he was responsible for the oversight, management, and control of Agency global combat logistics support to the Regional Combatant Commanders.

Preceding DLA, Mr. Kelleher served in several positions on the Federal COVID-19 Response Team (formerly known as Operation Warp Speed), finishing his tour there as the Deputy Chief Operating Officer. In this position, he provided executive oversight to the supply, production, and distribution of COVID-19 vaccine, therapeutics, test kits, and masks. In addition, he led the logistics coordination for international vaccine donations in close coordination with the White House COVID-19 Task Force.

Previous civilian assignments in the Marine Corps include Deputy Director, Logistics Division, Installations and Logistics (I&L) Department where, among other responsibilities, he oversaw the development of policy covering the spectrum of logistics capabilities. He also led the team responsible for logistics technology innovation in the Marine Corps and served as the Liaison Officer to the National Capital Region for Marine Corps Logistics Command.

During his 24 years as an active-duty United States Marine, he served in a variety of command, staff and joint positions. He completed eight deployments, including three combat deployments to Iraq. In two of his deployments to Iraq, he was a battalion commander in Fallujah. Other highlights include his selection for Regimental Command and selection as a Commandant of the Marine Corps Fellow, where he spent a year at the U.S. Agency for International Development (USAID). While at USAID he deployed to Uzbekistan as the first Marine on a USAID Disaster.