Executive Moves

Diane Nguyen, a more than 25-year financial and accounting leader in the GovCon industry, has joined Microsoft (Nasdaq: MSFT) as chief financial officer of the company’s federal business, GovCon Wire has learned.

Melissa Houghton, former vice president of business development at Redhorse Corp., has been appointed VP of corporate growth at the San Diego, California-based technology services company.

Scott Baum, a former Department of Defense official, has joined Elbit Systems’ (Nasdaq: ESLT) U.S. subsidiary as vice president of strategy and growth, Inside Defense reported Wednesday.

Sarjoo Shah, former chief information officer of Oklahoma’s Department of Health and Human Services, has joined Science Applications International Corp. (NYSE: SAIC) as head of its state and local health information technology programs.

Xavier Williams, a 30-year veteran of AT&T (NYSE: T) and two-time Wash100 Award recipient, will lead American Virtual Cloud Technologies (Nasdaq: AVCT) as CEO starting Oct. 1. He will succeed Darrell Mays, who has been appointed executive vice chairman of the AVCT's board of directors, and will also serve as a board member, the Atlanta-based information technology services provider said Wednesday.

Cedric Sims -- senior vice president in charge of Booz Allen Hamilton's (NYSE: BAH) justice, homeland security and transportation business -- has been named chairman of the American Heart Association's Executives with Heart campaign for 2020-2021. “I am thrilled to support a critical mission to improve health and well-being across the Greater Washington Region," Sims said.

Jason Gorman, an 11-year Department of Homeland Security veteran and most recently the chief operating officer at JTEK Data Solutions, has joined NTT Data as senior director of federal sales.

William LaPlante, formerly a senior executive at Mitre, will assume the president and CEO roles at Charles Stark Draper Laboratory on Oct. 7.

Veritas Capital has scheduled Oct. 1 as the date the private equity firm expects to complete its pending $5B cash acquisition of the U.S. state and local health and human services unit from DXC Technology (NYSE: DXC).

William Phillips, vice president for Army and Special Operations Forces field marketing at Boeing (NYSE: BA) and a retired U.S. Army lieutenant general, has been appointed to serve on Day & Zimmermann's board of advisers. The 38-year Army veteran brings to the D&Z advisory board his experience in areas such as defense contracting, security and aviation, the company said Wednesday.