Meet Our Experts

Bill Callahan

Senior Environmental Compliance Specialist

Erik Rutherford, PE

Senior Mechanical Engineer

Wen Bin Sullivan, PE

Civil Engineer

Zachary Caipang, PE

Associate Engineer

Steven Tanaka, PE, CSI, CCS

Principal Civil Engineer

Ann Sever, PLA

Senior Landscape Architect

Nate Whitcare, PE

Senior Designer

Matt Valez

Office Manager

Greg Hulburd, PE, QSD/P

Director of Water Resources

Bria diCicco

Marketing & Business Development Manager

Nick Sine, LSIT

Survey Technician

Tim Peterson

Project Analyst Compliance Inspector

Clayton Bradshaw, PE, PLS

Director of Surveying

Tony Scalise

Assistant Resident Engineer

Zachary Teske, PE

Director of Construction Management

Cris Disarufino

Senior Civil Designer

Jamie Platz, PE

Senior Civil Engineer

Jessica Escobar, PLA

Landscape Architect

Alvaro Escobedo

Associate Engineer

Travis Vasquez, PE

Associate Engineer

George Marchenko, PLS

Senior Land Surveyor

Lee Faraca, PE

Civil Engineer

Jenni Metzger

Project Analyst

Conner Kelly, PE

Associate Engineer

Brandon Puccini

Associate Engineer

Jamie Rogers

Marketing Coordinator

Rachel Hawthorne, PE

Director of Civil and Transportation Engineering

Glenn Rider

Senior Environmental Compliance Specialist

Mark Madonna, PE

Survey Technician

Bryce Dilger, PLS

Senior Land Surveyor II

Ralph Schell

Senior Civil Designer

Valerie Huff, PE

Senior Civil Engineer

Jorge Avila

Assistant Resident Engineer

Ethan Pence, PE

Civil Engineer

Alex Murray, PE

Civil Engineer

Suzanne Baird, PLA, ASLA

Landscape Architect

Olivia Williams

Associate Engineer

Michael Hausman, PE

Civil Engineer

Bill Lindahl, PE

Senior Mechanical Engineer

Kathy Redden

Executive Assistant

Skye Thomas, PLS

Senior Land Surveyor

Brett Hadley, PE, QSD/P

Senior Civil Engineer

Jenna Mitchell

Human Resources Manager

Sarah Huffman, PE

Civil Engineer

Heather Johnson

Reception & Admin

Sonil Kim

Assistant Resident Engineer

Julie Rae Wilson

Controller

Lonnie Richardson

Senior Project Analyst

JB Barrera

Assistant Resident Engineer

Samar Saliba

Senior Accountant

Ioanna Bruno

Landscape Designer

Daniel Herrera

Survey Technician

Luz Garcia, PLS

Professional Land Surveyor

Matt Wilkins, PLA, ASLA, APA

Director of Landscape Architecture

Zach Markow, PE

Civil Engineer

Anthony Lehman

Assistant Resident Engineer

Zac Powell, PE

Associate Engineer

Paula Cappiello

Senior Accountant

Gabriela Mendoza

Accountant

Marilynn Connell

Landscape Designer

Alexandra Cass

Associate Engineer

Josh Whipple

Senior Mechanical Designer

Marco Castaneda, PLS

Professional Land Surveyor

Ryan Burmaster

Survey Technician

Marcus Jackson

Senior Program Manager

Tina Mayer, PE

Principal Civil Engineer

John Wallace, PE

Consulting Engineer