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