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