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