Meet Our Experts
Our Principals
Brad Brechwald, PE, PLS
CEO, President
Thomas Zehnder, PE
Principal
Jorge Aguilar, PE
Principal
Robert Miller, PE
Principal
Kari Wagner, PE
Principal and Director of Water Resources
Craig A. Campbell, PE, PLS
Principal
Marco Castaneda, LSIT
Survey Technician
Chris Gardner
Business Development/Marketing Manager
Bill Callahan
Senior Environmental Compliance Specialist
Nate Whitcare
Senior Designer
Greg Hulburd, PE, QSD/P
Civil Engineer
Michael Hausman, PE
Civil Engineer
Louis Lefebvre, PE
Senior Mechanical Designer
Conner Kelly, EIT
Associate Engineer
Elvira Morla-Camacho, PE, QSD/P
Senior Civil Engineer
Sarah Huffman, PE
Civil Engineer
Zac Powell, EIT
Associate Engineer
Bryan Childress, PE
Senior Mechanical Engineer
Rich Pavlich
Senior Construction Inspector
Kathy Redden
Executive Assistant
Julie Rae Wilson
Controller
Brett Hanson
Associate Landscape Designer
Kelsey Nickel, EIT
Assistant Designer
Reagan Rinehart
Administrative Asst I
Rachel Hawthorne, PE
Director of Civil and Transportation Engineering
Anthony Lehman
Assistant Resident Engineer
Ethan Pence, EIT
Associate Engineer
Josh Whipple
Senior Mechanical Designer
Dylan Goodwin
Associate Engineer
Ryan Burmaster
Survey Technician
Erik Rutherford, PE
Senior Mechanical Engineer
John Wallace, PE
Consulting Engineer
Steven Tanaka, PE, CSI, CCS
Principal Civil Engineer
Luz Garcia, LSIT
Survey Technician
Wen Bin Sullivan, EIT
Associate Engineer
Gabriela Mendoza
Marketing Coordinator
Ann Sever, PLA, LEED AP
Senior Landscape Architect
Jesse Cabral, PE
Civil Engineer
Cris Disarufino
Senior Civil Designer
Kylie Castle
Marketing Coordinator
Ralph Schell
Senior Civil Designer
Paul Mateo, PE
Civil Engineer
Matt Valez
Office Manager
Denise Reynolds
Accountant
Clayton Bradshaw, PE, PLS
Director of Surveying
Kyle Anderson, PE, QSD/P
Senior Civil Engineer
Josue Villanueva
Survey Technician
George Marchenko, PLS
Senior Land Surveyor
Brett Hadley, PE, QSD/P
Senior Civil Engineer
Esau Blanco, PE, QSD/P
Senior Civil Engineer
Mark Madonna, PE
Survey Technician
Bill Lindahl
Senior Mechanical Engineer
Valerie Huff, PE
Senior Civil Engineer
Michael Brennan
Director of Construction Management
Bianca Koenig, PLA, LEED AP
Director of Landscape Architecture
Jeffrey LeNay
GIS Technical Specialist
Jenni Metzger
Accounting Clerk
Glenn Rider
Senior Environmental Compliance Specialist
Jenna Mitchell
Human Resources Manager
Andrea Kingsbury, PE
Civil Engineer
Matt Welker
Project Analyst/Compliance Inspector
Nick Sine, LSIT
Survey Technician
Lonnie Lepore
Senior Project Analyst
Rick Riedl, PE
Prinicipal Engineer
Macie Burd
Accountant II
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