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