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