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