Deputy Director, Science and Technology
Ms. Tessa Muehllehner became the Deputy Director for Science and Technology in August 2021. In this role, Ms. Muehllehner serves as principal advisor to the Director for Science and Technology on activities associated with document/media exploitation, foreign materiel acquisition and exploitation, open source intelligence capabilities, functional management of measurement and signatures intelligence capabilities, and development and execution of tailored technical intelligence collection and exploitation operations.
Prior to this assignment, Ms. Muehllehner served as the Chief of Congressional Relations, where she was responsible for maintaining DIA's relationship with
congressional members, staffers and committees, and as the senior advisor on congressional interactions and strategies to the DIA Director, the Office of Corporate Communications, and the Senior Cadre. That assignment followed numerous years as the senior resource advisor to the Chief Financial Officer, the DIA Director and the Defense Intelligence Enterprise and as focal point for congressional budget issues. She also worked as the DIA Senior Financial Expert for Manpower and Compensation, providing advice and guidance on matters pertaining to DIA manpower, and compensation, and talent management. She was appointed to a Defense Intelligence Senior Level position in 2009 as the DIA Senior Financial Expert for National Intelligence Programs.
She also served in the Office of the Director of National Intelligence in the Program Assessment and Evaluation Office and for the Office of the Program Manager for the Information Sharing Environment, working on a variety of issues including the Comprehensive National Cybersecurity Initiative, financial
statement audits, and information sharing enterprise architecture and performance management policy. She also worked in the Defense Intelligence Agency Directorate for Analysis, managing budget execution, programming and manpower, and serving as the Chief of the Resource Management Office.
Ms. Muehllehner began her career as a U.S. Coast Guard officer in Juneau, Alaska, where she worked in port safety and security, joint exercises and marine pollution regulations and served as Admiral's Aide. She later led th U.S. Coast Guard's environmental remediation program in Alaska, managing the cleanup
of contaminated sites across Alaska. Ms. Muehllehner was born in Park Ridge, Illinois, and grew up in Wayne, Pennsylvania. She received her BA from the University of California at Berkeley and her MPA from the University of Alaska Southeast.
She and her husband have two children and reside on Capitol Hill in Washington, D.C.