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