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