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