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