John Pepper, P.E.

John Pepper is the founding principal of the firm and has over 35 years of structural and forensic engineering experience. John is a graduate of the University of Miami. He served as an officer in the United States Army Corps of Engineers, where he obtained the rank of Major. John was one of the first engineers in the country to serve as a structural engineer on an Urban Search and Rescue Team. He was the lead engineer with Florida Task Force One before retiring from the team after returning from the World Trade Center disaster in 2001. John has designed hundreds of buildings and other structures, including the 40-story Mystic Point Tower Condominium, which was one of the tallest concrete buildings in Florida, and has been involved in the investigation of thousands of forensic engineering cases.

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  Greg McLellan, P.E.
Vice President to Managing Principal

Greg has a Master’s of Science Degree from the University of Illinois where he studied structural engineering and a BSCE from the U.S. Coast Guard Academy. In addition to his experience as a Coast Guard officer both in operations and engineering Greg has many years of experience in structural design and analysis and has completed over 2,500 forensic engineering investigations. Greg is a licensed Professional Engineer, Threshold Building Inspector and the lead structural engineer with Florida Task Force One (FL-TF1) – Urban Search and Rescue Team (USAR).

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  Diane Riggi, P.E.
Senior Engineer Manager

Diane Riggi has 28 years of experience in structural design and inspection of all types of construction. Diane was the 2006 President of the South Florida Chapter of The Florida Structural Engineers Association, which is part of the National Council of Structural Engineers. Diane brings experience and dedication to each project.

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  Marcelo Perla, P.E.
Senior Engineer Associate

Marcelo Perla is currently a Doctoral Candidate in Structural Engineering from Florida International University (FIU). He has a Master’s of Science Degree in Civil Engineering from FIU and a BSCE from the Pontifical Catholic University of Peru (PUCP). Marcelo has over 20 years experience in structural analysis, design, experimental structural research, and has completed over 260 forensic engineering investigations. He has taught undergraduate courses in Civil Engineering at the PUCP and at the Engineering National University of Peru. Marcelo is a licensed Professional Engineer, Threshold Building Inspector and a structural specialist engineer with Florida Task Force One (FL-TF1) – Urban Search and Rescue Team (USAR).

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  Kevin Matheus, E.I.
Graduate Engineer

Kevin has a Bachelor of Science in Civil Engineering from Florida State University and holds an Engineer in Training (EI) certification. He started the student chapter for the Institution of Structural Engineers at the FSU College of Engineering, which is based out of the United Kingdom and is one of the world's leading organizations for qualifications and standards in structural engineering. Kevin conducted research on construction materials at the Münster University of Applied Sciences in Germany and is now graduate engineer at PEGroup Consulting Engineers.

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