Schnabel Engineering, Glen Allen, Va., has named Walter Rabe president and CEO. Rabe replaces Gordon Matheson, who was expected to retire at the end of February. Rabe has been executive vice president of Schnabel Engineering Consultants since 2012.

Johnson, Mirmiran & Thompson has hired Douglas Simmons as a vice president in Sparks, Md. Simmons will lead its planning practice. He retired after 32 years with the Maryland State Highway Administration, where he was deputy administrator-chief engineer for planning, engineering, real estate and environment.

Hill International hired Paul Pocalyko as senior vice president in its construction claims group. He is based in Philadelphia. Pocalyko has nearly 35 years of experience in forensic accounting, financial consulting and litigation support services. Before moving to Hill, he was a partner with Baker Tilly.

Faithful+Gould hired MaryJo Cestone as Philadelphia-based manager of its workplace solutions team. Cestone has experience in facilities planning and design and was Johnson & Johnson’s director of workplace experience.

HDR hired DJ Gribbin as vice president and director of strategic consulting. Gribbin, who is based in Vienna, Va., is a former U.S. Dept. of Transportation general counsel.

WSP|Parsons Brinckerhoff hired Thomas Farley as senior engineering manager in Herndon, Va. He was Dulles Corridor Metrorail project coordinator for Loudoun County, Va.