Executive Moves

John Walsh, a more than 20-year industry veteran, has been named chief technology officer and chief information officer at ASRC Federal.

Leland Melvin, a 24-year NASA veteran, has joined the board of directors at nuclear components manufacturing company BWX Technologies (NYSE: BWXT).

Paul Nietzschmann, a structural engineer with four decades of industry experience, has joined Dewberry as a vice president and infrastructure group leader. He will be based in Dewberry's New York City office and oversee its highway, bridge, rail and other infrastructure projects, the company said Monday.

Steve Niezgoda, formerly a senior vice president at KeyW, has been named chief operations officer of Cornerstone Defense in a move that takes effect on June 24.

President Donald Trump has selected Mark Esper, secretary of the U.S. Army and a 2019 Wash100 winner, to take over leadership of the Department of Defense on an acting basis. Trump announced Esper’s appointment in a tweet posted Tuesday after Acting Defense Secretary Patrick Shanahan resigned and withdrew from consideration for the top DoD job to focus on his family.

Nadia Carlsten, former director of commercialization at the Department of Homeland Security and program manager of its cybersecurity division, has joined Amazon (Nasdaq: AMZN) as head of strategy and operations, G2Xchange ETC reported Monday.

Jerry Hogge, former senior vice president of military and veteran health solutions at Leidos (NYSE: LDOS), has been appointed SVP of Mitre's public sector business. He will be responsible for business strategy, international programs, and sponsor engagement with the nonprofit's federally funded research and development centers for civilian agencies, Mitre said Monday.

Michael Sperry, former vice president of business development at Conduent's federal government solutions subsidiary, has been appointed director of federal health services business development at Maximus (NYSE: MMS), FedHealthIT reported Friday.

Sean Thompson, formerly regional vice president of sales at Unisys (NYSE: UIS), has joined augmented identity and biometric systems provider IDEMIA as head of business development for identity and security business in North America.

Jana Weir Murphy, vice president and head of government affairs for Saab's North American market area, has elevated to the position of VP and head of corporate affairs within the region.