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