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Security Clearance Jobs in California

California

Viewing 1 - 20 of 5,247

Jobs in California requiring security clearance

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Site Reliability Engineer

New
Zachary Piper Solutions, LLC
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Los Angeles, CA(On-Site/Office)
Posted today
Secret
Not Specified

Zachary Piper Solutions is seeking an experienced Site Reliability Engineer (SRE) to support the deployment and sustainment of systems across classified, air-gapped, and government cloud environments ...

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Field Services Representative - Senior,

New
Peraton
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Carlsbad, CA(On-Site/Office)
Posted today
TS/SCI
Not Specified

About PeratonPeraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world's leading m...

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Material Program Manager

New
RTX
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Goleta, CA(On-Site/Office)
Posted today
Secret
Not Specified

Date Posted:2026-02-04Country:United States of AmericaLocation:US-CA-GOLETA-H01 ~ 6380 Hollister Ave ~ BLDG H01Position Role Type:Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: ...

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Systems Engineer / Level 2 - Level 3 (Security Clearance)

New
Kavaliro
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Los Angeles, CA(On-Site/Office)
Posted today
Secret
Not Specified

Responsibilities: Provide pre and post flight office support for NASA/DOD Engine Systems. Support the design and fabrication of product modifications through to field operations. Strong emphasis on ...

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2026 Systems Engineer I - Onsite - El Segundo, CA

New
RTX
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El Segundo, CA(On-Site/Office)
Posted today
Secret
Not Specified

Date Posted:2026-02-04Country:United States of AmericaLocation:US-CA-EL SEGUNDO-E01 ~ 2000 E El Segundo Blvd ~ BLDG E01Position Role Type:Onsite U.S. Citizen, U.S. Person, or Immigration Status Requir...

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Technical Project Leader - (75+% Travel)

New
Serco Inc.
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San Diego, CA(On-Site/Office)
Posted today
Secret
Not Specified

Position Description & QualificationsAre you a Technical Project Leader looking for a place to make an impact every day? Serco is the place for you! If you love engaging in challenging projects, trav...

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Program Director

New
Serco Inc.
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San Diego, CA(On-Site/Office)
Posted today
Secret
Not Specified

Position Description & QualificationsBring your expertise and critical thinking skills to make an impact towards our military defense by your new role supporting complex mission critical projects. Se...

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Short Term or As Needed Coverage, MFLC Counselor, Monterey CA

New
Leidos
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Monterey, CA(On-Site/Office)
Posted today
Public Trust
Not Specified

R-00175220Description Make a difference in the lives of our military Service Members and their families with your expertise in counseling and behavioral health – without the fuss of insurance or...

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OCFO Senior Administrator

New
Lawrence Livermore National Laboratory
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Livermore, CA(On-Site/Office)
Posted today
DoE Q or L
Not Specified

Company Description Join us and make YOUR mark on the World!Lawrence Livermore National Laboratory (LLNL) has turned bold ideas into world-changing impact advancing science and technology to strengthe...

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FIE Operations Cyber Security Manager - ACTIVE SECURITY CLEARANC

New
Lawrence Livermore National Laboratory
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Livermore, CA(On-Site/Office)
Posted today
DoE Q or L
Not Specified

Company Description Join us and make YOUR mark on the World!Lawrence Livermore National Laboratory (LLNL) has turned bold ideas into world-changing impact advancing science and technology to strengthe...

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Data Science - Postdoctoral Researcher

New
Lawrence Livermore National Laboratory
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Livermore, CA(On-Site/Office)
Posted today
DoE Q or L
Not Specified

Company Description Join us and make YOUR mark on the World!Are you interested in joining some of the brightest talent in the world to strengthen the United States' security? Come join Lawrence Liverm...

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National Ignition Facility User Office Director - Active Securit

New
Lawrence Livermore National Laboratory
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Livermore, CA(On-Site/Office)
Posted today
DoE Q or L
Not Specified

Company Description Join us and make YOUR mark on the World!Lawrence Livermore National Laboratory (LLNL) has turned bold ideas into world-changing impact advancing science and technology to strengthe...

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Mechanical Engineer- Generalist, NIF&PS

New
Lawrence Livermore National Laboratory
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Livermore, CA(On-Site/Office)
Posted today
DoE Q or L
Not Specified

Company Description Join us and make YOUR mark on the World!Lawrence Livermore National Laboratory (LLNL) has turned bold ideas into world-changing impact advancing science and technology to strengthe...

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SCTTR Information Technology Supervisor

New
MANTECH
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Burbank, CA(On-Site/Office)
Posted today
Secret
Not Specified

MANTECH seeks a motivated, career and customer-oriented Southern California Tactical Training Range (SCTTR) IT Supervisor to join our team in Naval Air Station (NAS) North Island (NI), Coronado, CA. T...

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Network Engineer

New
SAIC
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San Diego, CA(On-Site/Office)
Posted today
Secret
Not Specified

Description SAIC is seeking a dedicated Network Engineer to join our TACNET CB-ISEA team and permanently support the Enhanced Distance Support (EDS) Team. This is an onsite role at the Naval Informa...

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Infrastructure Systems Engineer

New
SAIC
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San Diego, CA(On-Site/Office)
Posted today
TS/SCI
Not Specified

Description SAIC is seeking an experienced Infrastructure Systems Engineer to join our Technical Engineering and Design Department in support of our United States Air Force customer. We have positio...

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Systems Integration Engineer

New
SAIC
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San Diego, CA(On-Site/Office)
Posted today
Secret
CI Polygraph

Description SAIC is seeking an experienced Systems Integration Engineer to join our Technical Engineering and Design Department in support of our United States Air Force customer. We have positions av...

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Data Ops Engineer

New
SAIC
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San Diego, CA(On-Site/Office)
Posted today
TS/SCI
Not Specified

Description SAIC is seeking an experienced Data Ops Engineer to join our Technical Engineering and Design Department in support of our United States Air Force customer. We have positions available i...

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Infrastructure System Administrator

New
SAIC
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San Diego, CA(On-Site/Office)
Posted today
TS/SCI
Not Specified

Description SAIC is seeking an experienced Systems Administrator to join our Technical Engineering and Design Department in support of our United States Air Force customer. We have positions availab...

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SR SOFTWARE ENGINEER - GSMS

New
ASD, Inc.
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Redondo Beach, CA(On-Site/Office)
Posted today
5+ yrs exp
Secret

Senior Software Engineer to support our Ground Solutions and Mission Support (GSMS) Software (SW) Integrated Project Team (IPT). The SW IPT is a large restricted group executing across both Developmen...

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