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