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