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