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