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 and Director of Water Resources Bryan Childress, PE Principal and Director of Mechanical Engineering Josh Whipple Senior Mechanical Designer Tina Mayer, PE Principal Civil Engineer Ryan Burmaster Survey Technician Wen Bin Sullivan, PE Civil Engineer Heather Johnson Reception & Admin Zachary Teske, PE Director of Construction Management Bryce Dilger, PLS Senior Land Surveyor II Cris Disarufino Senior Civil Designer Brett Hadley, PE, QSD/P Senior Civil Engineer Jenni Metzger Project Analyst Nick Sine, LSIT Survey Technician Alex Murray, PE Civil Engineer Matt Valez Office Manager Marco Castaneda, PLS Professional Land Surveyor Greg Hulburd, PE, QSD/P Civil Engineer Ioanna Bruno Landscape Designer Suzanne Baird. PLA 6114 Landscape Architect Sarah Huffman, PE Civil Engineer Samar Saliba Accounting Clayton Bradshaw, PE, PLS Director of Surveying Gabriela Mendoza Marketing Coordinator Jenna Mitchell Human Resources Manager Paula Cappiello Senior Accountant Marcus Jackson Senior Program Manager Mark Madonna, PE Survey Technician Jamie Rogers Marketing Coordinator Skye Thomas, PLS Senior Land Surveyor Brandon Puccini Associate Engineer Alexandra Cass Associate Engineer Zac Powell, EIT Associate Engineer Olivia Williams Associate Engineer George Marchenko, PLS Senior Land Surveyor Jamie Platz, PE Senior Civil Engineer Glenn Rider Senior Environmental Compliance Specialist Bill Lindahl, PE Senior Mechanical Engineer Conner Kelly, PE Associate Engineer Bill Callahan Senior Environmental Compliance Specialist Tim Peterson Project Analyst Compliance Inspector Lee Faraca, PE Civil Engineer John Wallace, PE Consulting Engineer Tony Scalise Assistant Resident Engineer Ralph Schell Senior Civil Designer Zach Markow, PE Civil Engineer Lonnie Richardson Senior Project Analyst Ethan Pence, PE Civil Engineer Travis Vasquez, PE Associate Engineer Anthony Lehman Assistant Resident Engineer Zachary Caipang, PE Associate Engineer Erik Rutherford, PE Senior Mechanical Engineer Ann Sever, PLA 4038 Senior Landscape Architect Rachel Hawthorne, PE Director of Civil and Transportation Engineering Alvaro Escobedo Associate Engineer Daniel Herrera Survey Technician Luz Garcia, PLS Professional Land Surveyor Marilynn Connell Landscape Designer Michael Hausman, PE Civil Engineer Matt Wilkins, PLA, ASLA, APA Director of Landscape Architecture Steven Tanaka, PE, CSI, CCS Principal Civil Engineer Bria diCicco Marketing & Business Development Manager Kathy Redden Executive Assistant Valerie Huff, PE Senior Civil Engineer Nate Whitcare, PE Senior Designer Sonil Kim Assistant Resident Engineer Julie Rae Wilson Controller Want to make our communities better? Join Our Team More Of Our Projects