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 and Director of Water Resources
Bryan Childress, PE
Principal and Director of Mechanical Engineering
Josh Whipple
Senior Mechanical Designer
Tina Mayer, PE
Principal Civil Engineer
Ryan Burmaster
Survey Technician
Wen Bin Sullivan, PE
Civil Engineer
Heather Johnson
Reception & Admin
Zachary Teske, PE
Director of Construction Management
Bryce Dilger, PLS
Senior Land Surveyor II
Cris Disarufino
Senior Civil Designer
Brett Hadley, PE, QSD/P
Senior Civil Engineer
Jenni Metzger
Project Analyst
Nick Sine, LSIT
Survey Technician
Alex Murray, PE
Civil Engineer
Matt Valez
Office Manager
Marco Castaneda, PLS
Professional Land Surveyor
Greg Hulburd, PE, QSD/P
Civil Engineer
Ioanna Bruno
Landscape Designer
Suzanne Baird. PLA 6114
Landscape Architect
Sarah Huffman, PE
Civil Engineer
Samar Saliba
Accounting
Clayton Bradshaw, PE, PLS
Director of Surveying
Gabriela Mendoza
Marketing Coordinator
Jenna Mitchell
Human Resources Manager
Paula Cappiello
Senior Accountant
Marcus Jackson
Senior Program Manager
Mark Madonna, PE
Survey Technician
Jamie Rogers
Marketing Coordinator
Skye Thomas, PLS
Senior Land Surveyor
Brandon Puccini
Associate Engineer
Alexandra Cass
Associate Engineer
Zac Powell, EIT
Associate Engineer
Olivia Williams
Associate Engineer
George Marchenko, PLS
Senior Land Surveyor
Jamie Platz, PE
Senior Civil Engineer
Glenn Rider
Senior Environmental Compliance Specialist
Bill Lindahl, PE
Senior Mechanical Engineer
Conner Kelly, PE
Associate Engineer
Bill Callahan
Senior Environmental Compliance Specialist
Tim Peterson
Project Analyst Compliance Inspector
Lee Faraca, PE
Civil Engineer
John Wallace, PE
Consulting Engineer
Tony Scalise
Assistant Resident Engineer
Ralph Schell
Senior Civil Designer
Zach Markow, PE
Civil Engineer
Lonnie Richardson
Senior Project Analyst
Ethan Pence, PE
Civil Engineer
Travis Vasquez, PE
Associate Engineer
Anthony Lehman
Assistant Resident Engineer
Zachary Caipang, PE
Associate Engineer
Erik Rutherford, PE
Senior Mechanical Engineer
Ann Sever, PLA 4038
Senior Landscape Architect
Rachel Hawthorne, PE
Director of Civil and Transportation Engineering
Alvaro Escobedo
Associate Engineer
Daniel Herrera
Survey Technician
Luz Garcia, PLS
Professional Land Surveyor
Marilynn Connell
Landscape Designer
Michael Hausman, PE
Civil Engineer
Matt Wilkins, PLA, ASLA, APA
Director of Landscape Architecture
Steven Tanaka, PE, CSI, CCS
Principal Civil Engineer
Bria diCicco
Marketing & Business Development Manager
Kathy Redden
Executive Assistant
Valerie Huff, PE
Senior Civil Engineer
Nate Whitcare, PE
Senior Designer
Sonil Kim
Assistant Resident Engineer
Julie Rae Wilson
Controller
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