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