Ellen Gertsen is the deputy associate administrator for NASA’s Office of Technology, Policy, and Strategy (OTPS). She provides leadership related to the management and operations of OTPS. Gertsen also supports the associate administrator in providing data- and evidence-driven technology, policy, and strategy advice to NASA leadership, engages with the technology and space policy communities, and oversees the office’s Space Environment Sustainability portfolio. She joined NASA in 2003 as a presidential management fellow and has extensive experience leading policy development, performance management, strategic planning, and organizational change initiatives.