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