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