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