Team / Our people Meet Our Experts FilterIng by Service Civil & Transportation Engineering Construction Management Landscape Architecture Mechanical Engineering Public Works Administration and Permitting Surveying / GIS Solutions Water Resources Professional Support Services 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 Bryce Dilger, PLS Senior Land Surveyor II Ralph Schell Senior Civil Designer Greg Hulburd, PE, QSD/P Civil Engineer Tim Peterson Project Analyst Compliance Inspector Clayton Bradshaw, PE, PLS Director of Surveying Ryan Burmaster Survey Technician Zachary Caipang, EIT Associate Engineer Ethan Pence, PE Civil Engineer Conner Kelly, PE Associate Engineer Bill Callahan Senior Environmental Compliance Specialist Wen Bin Sullivan, PE Civil Engineer Nate Whitcare, PE Senior Designer Cris Disarufino Senior Civil Designer Steven Tanaka, PE, CSI, CCS Principal Civil Engineer Matt Wilkins, PLA, ASLA, APA Director of Landscape Architecture Sarah Huffman, PE Civil Engineer Skye Thomas, PLS Senior Land Surveyor Jenna Mitchell Human Resources Manager Suzanne Baird. PLA 6114 Landscape Architect Valerie Huff, PE Senior Civil Engineer Lonnie Richardson Senior Project Analyst Craig A. Campbell, PE, PLS Consulting Engineer Bryan Childress, PE Senior Mechanical Engineer Ann Sever, PLA 4038 Senior Landscape Architect Kathy Redden Executive Assistant Nick Sine, LSIT Survey Technician Tony Scalise Assistant Resident Engineer Alvaro Escobedo Associate Engineer Samar Saliba Accounting Daniel Herrera Survey Technician I Paula Cappiello Senior Accountant Erik Rutherford, PE Senior Mechanical Engineer Nancie L. Adams, PE Senior Civil Engineer Zachary Teske, PE Director of Construction Management Olivia Williams Associate Engineer Jenni Metzger Project Analyst Zac Powell, EIT Associate Engineer Luz Garcia, PLS Professional Land Surveyor Rachel Hawthorne, PE Director of Civil and Transportation Engineering Travis Vasquez, PE Associate Engineer Josh Whipple Senior Mechanical Designer Michael Hausman, PE Civil Engineer Gabriela Mendoza Marketing Coordinator Elvira Morla-Camacho, PE, QSD/P Senior Civil Engineer Bill Lindahl Senior Mechanical Engineer Anthony Lehman Assistant Resident Engineer George Marchenko, PLS Senior Land Surveyor John Wallace, PE Consulting Engineer Julie Rae Wilson Controller Glenn Rider Senior Environmental Compliance Specialist Zach Markow, PE Civil Engineer Matt Valez Office Manager Alexandra Cass Associate Engineer Marco Castaneda, PLS Professional Land Surveyor Mark Madonna, PE Survey Technician Brett Hadley, PE, QSD/P Senior Civil Engineer Want to make our communities better? Join Our Team More Of Our Projects