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