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