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