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
Bryan Childress, PE
Principal and Director of Mechanical Engineering
Zachary Caipang, PE
Associate Engineer
Michael Hausman, PE
Civil Engineer
Alex Murray, PE
Civil Engineer
Daniel Herrera
Survey Technician
Rachel Hawthorne, PE
Director of Civil and Transportation Engineering
Jamie Platz, PE
Senior Civil Engineer
Steven Tanaka, PE, CSI, CCS
Principal Civil Engineer
Paula Cappiello
Senior Accountant
Nick Sine, LSIT
Survey Technician
Kathy Redden
Executive Assistant
Samar Saliba
Senior Accountant
Sonil Kim
Assistant Resident Engineer
Matt Wilkins, PLA, ASLA, APA
Director of Landscape Architecture
Josh Whipple
Senior Mechanical Designer
Greg Hulburd, PE, QSD/P
Director of Water Resources
Marcus Jackson
Senior Program Manager
Jorge Avila
Assistant Resident Engineer
Nate Whitcare, PE
Senior Designer
Ioanna Bruno
Landscape Designer
Erik Rutherford, PE
Senior Mechanical Engineer
Tony Scalise
Assistant Resident Engineer
Skye Thomas, PLS
Senior Land Surveyor
JB Barrera
Assistant Resident Engineer
Jenna Mitchell
Human Resources Manager
Luz Garcia, PLS
Professional Land Surveyor
Marco Castaneda, PLS
Professional Land Surveyor
Julie Rae Wilson
Controller
Jessica Escobar, PLA
Landscape Architect
Lee Faraca, PE
Civil Engineer
Gabriela Mendoza
Accountant
Alvaro Escobedo
Associate Engineer
Zachary Teske, PE
Director of Construction Management
Olivia Williams
Associate Engineer
Anthony Lehman
Assistant Resident Engineer
Brett Hadley, PE, QSD/P
Senior Civil Engineer
Zac Powell, PE
Associate Engineer
Valerie Huff, PE
Senior Civil Engineer
Ryan Burmaster
Survey Technician
Jamie Rogers
Marketing Coordinator
Tim Peterson
Project Analyst Compliance Inspector
Bill Lindahl, PE
Senior Mechanical Engineer
John Wallace, PE
Consulting Engineer
Glenn Rider
Senior Environmental Compliance Specialist
Suzanne Baird, PLA, ASLA
Landscape Architect
George Marchenko, PLS
Senior Land Surveyor
Matt Valez
Office Manager
Ethan Pence, PE
Civil Engineer
Bria diCicco
Marketing & Business Development Manager
Marilynn Connell
Landscape Designer
Tina Mayer, PE
Principal Civil Engineer
Mark Madonna, PE
Survey Technician
Sarah Huffman, PE
Civil Engineer
Conner Kelly, PE
Associate Engineer
Lonnie Richardson
Senior Project Analyst
Bill Callahan
Senior Environmental Compliance Specialist
Bryce Dilger, PLS
Senior Land Surveyor II
Heather Johnson
Reception & Admin
Travis Vasquez, PE
Associate Engineer
Brandon Puccini
Associate Engineer
Ann Sever, PLA
Senior Landscape Architect
Zach Markow, PE
Civil Engineer
Cris Disarufino
Senior Civil Designer
Jenni Metzger
Project Analyst
Clayton Bradshaw, PE, PLS
Director of Surveying
Alexandra Cass
Associate Engineer
Ralph Schell
Senior Civil Designer
Wen Bin Sullivan, PE
Civil Engineer
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