Firm Leadership
![Paul Schneider Northern California Civil Engineering Firm](https://siegfriedeng.com/wp-content/uploads/2015/01/Paul-Schneider1-1024x683.jpg)
Paul Schneider
PE, QSD/QSP
President, Managing Principal
![Adam Merrill Civil Engineering Sacramento San Jose](https://siegfriedeng.com/wp-content/uploads/2020/03/Adam-Merrill-Siegfried-Engineering-1024x683.jpg)
Adam Merrill
PE, QSD/QSP
Vice President, Principal
![Jim Willis Civil Engineering Structural Surveying Northern California](https://siegfriedeng.com/wp-content/uploads/2015/01/Jim-Willis-Website-1024x683.jpg)
Jim Willis
CFO, General Manager
![Kevin Genasci Land Surveyor Northern California Sacramento](https://siegfriedeng.com/wp-content/uploads/2021/08/Kevin-Genasci-Senior-Associate-Survey-Manager-and-Principal-Siegfried.jpg)
Kevin Genasci
PLS
Survey Manager, Principal
![Bradford Quon](https://siegfriedeng.com/wp-content/uploads/2022/12/Bradford-Quon-geotechnical-engineering.jpg)
Bradford Quon
PE, GE
Geotechnical Manager, Principal
![Jori Lemmon](https://siegfriedeng.com/wp-content/uploads/2024/03/Jori-Lemmon-interior-scaled-e1711122829652-1024x699.jpg)
Jori Lemmon
PE, SE
Structural Manager, Principal
![Thais Del Castillo](https://siegfriedeng.com/wp-content/uploads/2023/10/Thais-Del-Castillo-Siegfried-scaled-e1698258419842-1024x689.jpg)
Thais Del Castillo
PLA, LEED AP
Landscape Manager, Principal
![Soon-Min Kwon](https://siegfriedeng.com/wp-content/uploads/2022/12/Soon-Min-Kwon-Structural-Engineering.jpg)
Soon-Min Kwon
PE
Director of Structural BD, Principal
![Robert Norbutas Jr. Landscape Architecture Sacramento Bay Area San Jose](https://siegfriedeng.com/wp-content/uploads/2020/03/Bob-Norbutas-1024x686.jpg)
Robert Norbutas Jr.
PLA
Design Principal
![Anthony Lopes Structural Engineering Firm Sacramento San Francisco Modesto CA](https://siegfriedeng.com/wp-content/uploads/2015/01/Anthony-Lopes1-1024x681.jpg)
Anthony Lopes
PE, SE
Senior Associate Structural Engineer
![Nathan Berend Northern California Civil Engineering Sacramento Modesto](https://siegfriedeng.com/wp-content/uploads/2021/08/Nathan-Berend-Civil-Engineer-Siegfried.jpg)
Nathan Berend
PE
Associate Civil Engineer
![Rhett Kilgore Civil Engineering Surveying Modesto Stockton Sacramento Bay Area](https://siegfriedeng.com/wp-content/uploads/2021/08/Rhett-Kilgore-Civil-Engineer-Siegfried.jpg)
Rhett Kilgore
PE
Associate Civil Engineer
![Louie Mendez Civil Structural Engineering Northern California Sacramento Stockton](https://siegfriedeng.com/wp-content/uploads/2021/08/Louie-Mendez-Siegfried-Engineering.jpg)
Louie Mendez
Associate Project Manager
![Zia Durrani](https://siegfriedeng.com/wp-content/uploads/2024/07/Zia-Durrani-e1721333471829-1024x686.jpg)
Zia Durrani
Associate Structural Engineer
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