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