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