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