252 West Swamp Road Suite #35, Doylestown, PA 18901    

  Phone: 215.283.3434

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"Teamwork is the ability to work together toward a common vision. The ability to direct individual accomplishments toward organizational objectives. It is the fuel that allows common people to attain uncommon results." 

--Andrew Carnegie

Mark Cavallaro
Senior Designer

The senior designer for WJM Engineering, Inc., Mark Cavallaro, has over 15 years of design and drafting experience. Mr. Cavallaro has transitioned WJM Engineering, Inc. from conventional 2D drafting to 3D Building Information Modeling (BIM). He has attended Autodesk University and AUGI CAD Camps to keep his skill set at the highest level.

Stephen Mohan, P.E.
Structural Engineer/ Project Manager

Stephen Mohan, P.E., is a project manager and structural engineer at WJM Engineering, Inc. He has experience in the design of steel, reinforced and post-tensioned concrete, light gauge, and wood framed structures for institutional, cultural, industrial, and residential clients. His experience includes new structures, rehabilitation, and repair of existing structures.  He is a licensed Professional Engineer in Pennsylvania. Stephen has a Bachelor of Science Degree in Civil Engineering from Penn State University, and a Master of Science Degree in Civil Engineering from Villanova University.

Kim Harman

As the designer for WJM Engineering, Kim Harman provides the knowledge and skills needed to provide creative and efficient ways to solve each design problem. Her education in interior design at Michigan State University and her more than 15 years’ experience in commercial and residential design and building contributes to the 3D BIM drafting and space planning functionality for each project.


 Licensed in PA•NJ•DE

William J. Mohan, P.E.

The owner and founder of WJM Engineering, Inc., William J. Mohan, P.E., has more than 35 years of industry experience. His extensive training and continuing education are proof of his commitment to quality workmanship and customer satisfaction. Mr. Mohan has a Master of Science degree in Environmental Engineering from Drexel University and a Bachelor of Science in Mechanical Engineering from Temple University. He is a registered Professional Engineer in Pennsylvania, Delaware & New Jersey. He is a certified home inspector and was certified as an energy manager with the Association of Energy Engineers in 1982.