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
Clayton Bradshaw, PE, PLS
Director of Surveying
Mark Madonna, PE
Survey Technician
Marco Castaneda, PLS
Professional Land Surveyor
Paula Cappiello
Senior Accountant
Bryce Dilger, PLS
Senior Land Surveyor II
Zachary Teske, PE
Director of Construction Management
Ralph Schell
Senior Civil Designer
Ann Sever, PLA 4038
Senior Landscape Architect
Tim Peterson
Project Analyst Compliance Inspector
Gabriela Mendoza
Marketing Coordinator
Jenna Mitchell
Human Resources Manager
Valerie Huff, PE
Senior Civil Engineer
Bryan Childress, PE
Senior Mechanical Engineer
Wen Bin Sullivan, PE
Civil Engineer
Jenni Metzger
Project Analyst
Tony Scalise
Assistant Resident Engineer
Elvira Morla-Camacho, PE, QSD/P
Senior Civil Engineer
Alexandra Cass
Associate Engineer
Greg Hulburd, PE, QSD/P
Civil Engineer
Conner Kelly, PE
Associate Engineer
Steven Tanaka, PE, CSI, CCS
Principal Civil Engineer
Nick Sine, LSIT
Survey Technician
Suzanne Baird. PLA 6114
Landscape Architect
Ryan Burmaster
Survey Technician
Skye Thomas, PLS
Senior Land Surveyor
Kathy Redden
Executive Assistant
Luz Garcia, PLS
Professional Land Surveyor
Travis Vasquez, PE
Associate Engineer
Craig A. Campbell, PE, PLS
Consulting Engineer
Sarah Huffman, PE
Civil Engineer
Erik Rutherford, PE
Senior Mechanical Engineer
Alvaro Escobedo
Associate Engineer
Bill Callahan
Senior Environmental Compliance Specialist
Josh Whipple
Senior Mechanical Designer
Zac Powell, EIT
Associate Engineer
Anthony Lehman
Assistant Resident Engineer
Nancie L. Adams, PE
Senior Civil Engineer
Matt Wilkins, PLA, ASLA, APA
Director of Landscape Architecture
Cris Disarufino
Senior Civil Designer
John Wallace, PE
Consulting Engineer
Nate Whitcare, PE
Senior Designer
Michael Hausman, PE
Civil Engineer
Zachary Caipang, EIT
Associate Engineer
Samar Saliba
Accounting
Lonnie Richardson
Senior Project Analyst
Ethan Pence, PE
Civil Engineer
Brett Hadley, PE, QSD/P
Senior Civil Engineer
Glenn Rider
Senior Environmental Compliance Specialist
Daniel Herrera
Survey Technician I
Zach Markow, PE
Civil Engineer
Julie Rae Wilson
Controller
Olivia Williams
Associate Engineer
Rachel Hawthorne, PE
Director of Civil and Transportation Engineering
Bill Lindahl
Senior Mechanical Engineer
George Marchenko, PLS
Senior Land Surveyor
Matt Valez
Office Manager
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