About Us

Leadership

At Interface we strive to create optimal environments for each space we design. To accomplish this, we have a leadership team of high-performance individuals who have a passion for challenging work and projects. 

Andy Frichtl

Managing Principal

Portland

Roger Frechette, III

Managing Principal

Washington DC

Hormoz Janssens

Managing Principal

San Francisco

Rob Matteson

Managing Principal

Portland

Kevin Cahill

Principal

Washington DC

David Chesley

Principal

Portland

Joel D. Cruz

Principal

San Francisco

Steve Dacus

Principal

Portland

Eugene de Souza

Principal

Los Angeles

Andrew Lasse

Principal

Portland

Beverly Markstrom

Principal

Portland

John McMichael

Principal

Portland

Rick Russell

Principal

San Francisco

Jim Sattem

Principal

Portland

Michael Troyer

Principal

Portland

Tom Voltaggio

Principal

Chicago

Kenton Aikens

Associate Principal, Senior Fire/Life Safety Engineer

Portland

Mark Blazis

Associate Principal, Senior Mechanical Engineer

Chicago

Craig Burton

Associate Principal, Senior Mechanical Engineer

Chicago

Brian Butler

Associate Principal, Senior Mechanical Engineer

Portland

Adam Carlson

Associate Principal, Senior Mechanical Engineer

Portland

Andrew Craig

Associate Principal, Senior Mechanical Engineer

Portland

Shem Heiple

Associate Principal, Senior Mechanical Engineer

Portland

Scott Holum

Associate Principal, Senior Plumbing Designer

Portland

Mark Jackson

Associate Principal, Senior Electrical Designer

Portland

Troy Lowell

Associate Principal, Senior Mechanical Engineer

Portland

Marty Lunkes

Associate Principal, Senior Mechanical Designer

Chicago

Nick Marcyan

Associate Principal, Senior Commissioning Authority

Portland

Jim McClelland

Associate Principal, Senior Mechanical Engineer

Portland

Mark O’Leary

Associate Principal, Senior Electrical Engineer

Portland

Thomas Phuong

Associate Principal, Senior Electrical Engineer

Portland

Kathleen Roach

Associate Principal, Senior Fire/Life Safety Designer

Portland

Scott Sato

Associate Principal, Senior Electrical Engineer

Honolulu

Shawn Wilson

Associate Principal, Senior Mechanical Engineer

San Francisco

Jesse Agosta

Associate, Senior Mechanical Engineer

San Francisco

Melissa Crosman

Associate, Director of Marketing + Business Development

Portland

Kim De Alba

Associate, Regional Marketing Manager

Portland

Thomas de Senna

Technical Associate

San Francisco

Joseph Dilenno

Associate, Senior Mechanical Engineer

Washington DC

Andrew Flanagan

Associate, Senior Plumbing Engineer

Portland

Michael Flemming

Associate, Commissioning Agent

San Francisco

Steve Gross

Associate, Senior Energy Analyst, Mechanical Engineer

San Francisco

Stephen Kalach

Associate, Senior Plumbing Engineer

Washington DC

Mehran Khazra

Senior Technical Associate

San Francisco

Jason Kirkpatrick

Associate, Senior Energy Analyst, Mechanical Engineer

San Francisco

Mark Koller

Associate, Senior Mechanical Engineer

Honolulu

Jason Lau

Associate, Senior Electrical Engineer

San Francisco

Michael Moerlins

Associate, Senior Mechanical Engineer

Portland

Jason Nguyen

Associate, Senior Technologies Designer

San Francisco

Siobhan Nimedez

Regional Marketing Manager

Los Angeles

Deborah Raines

Associate, Senior Lighting Designer

Portland

Joe Ripp

Associate, Senior Fire Alarm Designer

Portland

Kyle Rives

Associate, Senior Mechanical Engineer

Washington DC

Greg Rohlfing

Associate, Controller

Portland

Kristina Santi

Associate, Senior Electrical Designer

San Francisco

Jon Schlitz

Associate, Senior Fire/Life Safety Designer

Portland

Chris Scott

Associate, Senior Plumbing Designer

Portland

Omar Shaaban

Associate, Senior Electrical Engineer

Portland

Bharat Shukla

Senior Technical Associate

San Francisco

Rick Silenzi

Associate, Senior Mechanical Designer

Portland

Jason Sullivan

Associate, Senior Mechanical Engineer

Portland

Stephen Tarbuck

Project Director

Washington DC

Glen Walson

Associate, BIM Manager

San Francisco

Eunice Yoon

Associate, Senior Mechanical Engineer

San Francisco

Huong Nguyen

Associate, Senior Electrical Designer

Portland

Cody Bargholz

Associate, Senior Electrical Designer

Portland

Robert Patton

Associate, Senior Network Administrator

Portland

Dave Ralston

Associate, Senior Plumbing Designer

San Francisco

Jared Doescher

Associate, Senior Mechanical Engineer

San Francisco

Nicholas Young

Associate, Senior Mechanical Engineer

Portland

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