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