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