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