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