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Firm Leadership
Northern California Civil Engineering Firm

Paul Schneider

PE, QSD/QSP

President, Managing Principal

Civil Engineering Sacramento San Jose

Adam Merrill

PE, QSD/QSP

Vice President, Principal

Civil Engineering Structural Surveying Northern California

Jim Willis

CFO, General Manager

Land Surveyor Northern California Sacramento

Kevin Genasci

PLS

Survey Manager, Principal

Bradford Quon

PE, GE

Geotechnical Manager, Principal

Jori Lemmon

PE, SE

Structural Manager, Principal

Thais Del Castillo

PLA, LEED AP

Landscape Manager, Principal

Landscape Architecture Sacramento Bay Area San Jose

Robert Norbutas Jr.

PLA

Design Principal

Structural Engineering Firm Sacramento San Francisco Modesto CA

Anthony Lopes

PE, SE

Senior Associate Structural Engineer

Northern California Civil Engineering Sacramento Modesto

Nathan Berend

PE

Associate Civil Engineer

Civil Engineering Surveying Modesto Stockton Sacramento Bay Area

Rhett Kilgore

PE

Associate Civil Engineer

Zia Durrani

PE, SE

Associate Structural Engineer

Civil Structural Engineering Northern California Sacramento Stockton

Louie Mendez

Associate Project Manager

Lorraine Cayllahua

PE

Associate Civil Engineer

Shawn Barba

Marketing Director

Erin Cahoon

Marketing Manager

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    Stockton | Corporate
    3428 Brookside Road
    Stockton, CA 95219
    209.943.2021
    209.942.0214
    Modesto
    100 Sycamore Avenue,
    Suite 100
    Modesto, CA 95354
    209.762.3580
    Sacramento
    1164 National Drive
    Suite 20
    Sacramento, CA 95834
    916.520.2777
    San Jose
    84 W. Santa Clara Street
    Suite 700
    San Jose, CA 95113
    408.754.2021
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    Siegfried Engineering