FedBizBeat congratulates the following GovCon executives on their hard-earned, new titles in the month of December.

John Acton was appointed to TWD & Associates, Inc.’s board of directors.

Alan Carpenter was named vice president of federal civilian programs for Amyx, Inc.

David Cummins was chosen as senior vice president of Serco, Inc.’s transportation business unit.

Lisa Davis was tapped by Siemens Corp. to be chair and chief executive officer.

Steven Earls was appointed to vice president of information security strategy for Ntrepid Corp.

Maliek Ferebee was chosen as chief human resources officer for Alion Science and Technology.

Helene Fisher was selected as president of DLH Danya International.

Tom Howe of Salient CRGT was promoted from division director to vice president of homeland security and law enforcement solutions.

Vernon Joyner of ENSCO, Inc. was promoted from manager to vice president of the company’s National Security Solutions division.

Retired U.S. Air Force Brig. Gen. Richard “Rick” M. Murphy joined Amyx, Inc. as vice president of defense programs.

Charles “Chuck” Prow was appointed as president and chief executive officer for Vectrus, Inc., and joined the board of directors.

David Rhodes was named vice president of civil programs for MCR Federal.

David Rubal was tapped by DLT Solutions to be its first chief technologist for data and analytics.

William “Bill” Schaefer was promoted to chief operating officer of Amyx, Inc.

Steven Smith was selected to join Sevatec’s board of directors.