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