
Our Team
Team-Oriented & Client-Focused

We attract, retain, and promote a diverse blend of high achievers who strive to create value for our clients. Our people are challenged to reason objectively and think independently to solve complex client problems efficiently and practically. Our business is growth-oriented and we seek people that delight in the accountability and abundance of opportunity that accompanies growth.
Leadership
GTA would not be where it is today without the inspiring and dedicated leadership of these people:
Mid-Atlantic

David N. Zmijewski, PE

Stephen A. Cutter

Michael W. Derr, PE

Benjamin T. Dinsmore, PE

Robert Dykstra, PE

David J. Garbarino
Treasurer & Chief Administrative Officer
Abingdon, MD
Finance & Administration

Andrew S. Hendricks, PG, LRS

Meghan McDonough, PE

Jonathan D. Raab, PE
Vice President
Pittsburgh Metro & York, PA and Northeastern, OH
Geotechnical Engineering

Gary S. Rakow, LSRP

Craig T. Rodano, PG

Scott J. Taylor, PE
Midwest

Jonathan D. Raab, PE
Vice President
Pittsburgh Metro & York, PA and Northeastern, OH
Geotechnical Engineering
Southeast

David N. Zmijewski, PE

Stephen A. Cutter

Andrew S. Hendricks, PG, LRS

Gautham Pillappa, PE

Craig T. Rodano, PG

John P. Wille, PE

Join Our Team!
If you want to start a fulfilling career at a people-focused firm where you can be proud of the work you produce, then we would love to hear from you.