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