Dawn Zimmer Archives

The votes are in for the 2025 FedScoop.

Dawn Zimmer

WASHINGTON, DC – MARCH 18: The reflection the flag of the U.S. Department of Energy is seen on its building on March 18, 2025 in Washington, DC. The Trump administration announced on Monday it is releasing the second loan disbursement worth $56.7 million to Holtec International to restart the Palisades Nuclear Plant. (Photo by Alex Wong/Getty Images)

Dawn Zimmer takes over as permanent Energy CIO

The move to install Zimmer comes after a high turnover rate in the department’s top IT post under the Trump administration.

Nov 10, 2025 By Madison Alder

A view of Department of Energy headquarters on Feb. 9, 2024, in Washington, D.C. (Photo by J. David Ake/Getty Images)

Dawn Zimmer returns to acting Energy CIO after SpaceX engineer’s short tenure

Zimmer is filling the CIO position for the second time since Inauguration Day after Ryan Riedel briefly took on the role overseeing the department's $4.3 billion IT…

Mar 10, 2025 By Billy Mitchell

Energy CIO replaced with SpaceX engineer as DOGE probes department’s systems

Dawn Zimmer, who joined Energy in November as deputy CIO and has been acting CIO since January, has been replaced by a network engineer from SpaceX, the…

Feb 7, 2025 By Billy Mitchell