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