Meet Our Experts

Bill Callahan

Senior Environmental Compliance Specialist

Michael Hausman, PE

Civil Engineer

Kathy Redden

Executive Assistant

Anthony Lehman

Assistant Resident Engineer

Jenna Mitchell

Human Resources Manager

Marilynn Connell

Landscape Designer

Erik Rutherford, PE

Senior Mechanical Engineer

Valerie Huff, PE

Senior Civil Engineer

Tina Mayer, PE

Principal Civil Engineer

Marcus Jackson

Senior Program Manager

Zac Powell, PE

Associate Engineer

Matt Valez

Operations Manager

Ryan Burmaster

Survey Technician

Rachel Hawthorne, PE

Director of Civil and Transportation Engineering

Lee Faraca, PE

Civil Engineer

Clayton Bradshaw, PE, PLS

Director of Surveying

Ethan Pence, PE

Civil Engineer

Alvaro Escobedo

Associate Engineer

George Marchenko, PLS

Senior Land Surveyor

Samar Saliba

Senior Accountant

Luz Garcia, PLS

Professional Land Surveyor

Wen Bin Sullivan, PE

Civil Engineer

Mark Madonna, PE

Survey Technician

Gabriela Mendoza

Accountant

Alexandra Cass, PE

Associate Engineer

Glenn Rider

Senior Environmental Compliance Specialist

Josh Whipple

Senior Mechanical Designer

Ralph Schell

Senior Civil Designer

Alex Murray, PE

Civil Engineer

Olivia Williams

Associate Engineer

Cris Disarufino

Senior Civil Designer

Zach Markow, PE

Civil Engineer

Sonil Kim

Assistant Resident Engineer

Marco Castaneda, PLS

Professional Land Surveyor

Daniel Herrera

Survey Technician

Nate Whitcare, PE

Senior Designer

Travis Vasquez, PE

Associate Engineer

Nick Sine, LSIT

Survey Technician

Zachary Caipang, PE

Associate Engineer

Conner Kelly, PE

Associate Engineer

David Jamesson, PLA

Landscape Architect

Frances Yu

Survey Technician

Jessica Escobar, PLA

Landscape Architect

Brandon Puccini

Associate Engineer

Jamie Platz, PE

Senior Civil Engineer

Lonnie Richardson

Senior Project Analyst

JB Barrera

Assistant Resident Engineer

Tim Peterson

Project Analyst Compliance Inspector

Heather Johnson

Reception & Admin

Matt Wilkins, PLA, ASLA, APA

Director of Landscape Architecture

Jorge Avila

Assistant Resident Engineer

Steven Tanaka, PE, CSI, CCS

Principal Civil Engineer

Tony Scalise

Assistant Resident Engineer

Greg Hulburd, PE, QSD/P

Director of Water Resources

Julie Rae Wilson

Controller

Jenni Metzger

Project Analyst

Bria diCicco

Marketing & Business Development Manager

Bryce Dilger, PLS

Senior Land Surveyor II

Paula Cappiello

Senior Accountant

Zachary Teske, PE

Director of Construction Management

Sarah Huffman, PE

Civil Engineer

Suzanne Baird, PLA, ASLA

Landscape Architect

John Wallace, PE

Consulting Engineer

Bill Lindahl, PE

Senior Mechanical Engineer

Jamie Rogers

Marketing Coordinator