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