Our Team

John A. Ververelli, P.E.
Director of Engineering Services and Project Management

John Ververelli is the principal-in-charge at Dimitri J. Ververelli, Inc. and oversees all engineering activity. He is the primary point of contact between the client and all other team members.

John C. Barton, P.E.
Vice President

John Barton is responsible for overseeing all electrical engineering services in the areas of commercial, retail, medical, education, historical preservation, public spaces, theatre, and industrial projects for Dimitri J. Ververelli, Inc.

David W. Gilbert, P.E.
Vice President

Dave Gilbert serves as a project director, manager, and mechanical engineer for projects in the areas of health care, education, research, historical renovation, and industrial applications for Dimitri J. Ververelli, Inc.

Linda Overheim Miedwig, P.E., LEED AP BD+C
Project Manager

Linda Miedwig is responsible for design of HVAC, piping, lighting, and electrical distribution systems on a wide variety of both new construction and renovation projects, ranging from central steam boiler plants and air-handling systems to tenant fit-out work.

Gregory J. Hughel, P.E., CEM, LEED AP
Project Engineer

As a LEED Accredited Professional (LEED AP), Greg is knowledgeable in the application of energy saving, sustainable and cost-effective engineering concepts for new and existing buildings.

Robert W. Rowland
Plumbing Engineer

Bob is a senior design engineer with over 30 years of experience in plumbing and fire protection design and engineering.

Niki A. Ververelli
Director of Business Development

Niki Ververelli is who you call first.

John R. Lehman
Design Engineer/Draftsman

John joined DJVI in 2015 and is a graduate of Temple University's College of Engineering.

Devin Coyne
Design Engineer

Devin joined DJVI in 2018 and is a graduate of Widener University’s School of Engineering.