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Our Leadership

Paul DuPont, PE

Principal
Paul has 32 years experience as a mechanical consulting engineer and leads Interface’s Medical Design Group. In addition to designing medical facilities, his engineering design experience spans a wide variety of advanced technology, commercial, institutional and industrial projects. Paul has served on numerous ASHRAE committees, and has been involved with the State of Oregon Building Codes Structures Board and the Energy Committee. He has prepared a nationally published guide for the design of chilled water plants as well as several other engineering design guides.

Omid Nabipoor,
LEED® AP
President

David Pickett, PE,
LEED® AP
Senior Vice President

Andrew Briones
Associate Principal

David Chesley, PE, RCDD, LEED® AP
Associate Principal

Joel D. Cruz
Principal

Steven Dacus, PE
Associate Principal

Paul DuPont, PE
Principal

Robert Dupuy, LC, IALD
Associate Principal

Issam Elsahili
Principal

Andy Frichtl, PE
Principal

Jonathan F. Gray, CIPE
Principal

Hormoz Janssens, PE,
LEED® AP
Principal

Creighton Kearns, PE
Principal

Stuart Lindsay,
LEED® AP
Principal

Beverly Markstrom
Principal

Rob Matteson, CIPE,
LEED® AP
Principal

John McMichael, PE
Principal

Philip Michaels, PE,
LEED® AP
Principal

Nicholas P. Rich, PE,
LEED® AP
Principal

Douglas C. Smith, PE,
LEED AP
Associate Principal

David A. Williams, PE,
LEED AP
Associate Principal