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