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94 ts sci jobs at 35 companies in Lancaster, CA

3mo
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COMSEC Manager (CRO) (TS//SCI)
Los Angeles, California, United States
$120k-$180k/yr OnsiteFull Time
K2 Space
K2 Space: Develops high-power satellite platforms for heavy-lift launch vehicles.
2+ YOEActive TS/SCI clearance, 2+ years COMSEC experience, bachelor’s degree, strong communication, KMI experience.
KMI (Key Management Infrastructure), COMSEC equipment management platforms, Encryption devices
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3w
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Information Systems Security Officer (ISSO) – TS/SCI
Los Angeles, California, United States
$46-$58/hr OnsiteFull Time
Vision Information Technology Consultants
Vision Information Technology Consultants: Provides specialized IT and cybersecurity services for government agencies.
8+ YOEActive TS/SCI clearance, 8–12 years experience, RMF/NIST 800-53 knowledge, vulnerability management, SSP/POA&M management, ACAS/STIGs familiarity, eMASS exposure, strong analytical and communication skills.
RMF, NIST 800-53, ACAS, STIGs, eMASS
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6d
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Software Quality Assurance Engineer III TS/SCI
Pasadena, California, United States
$127k-$144k/yr OnsiteFull Time
Jet Propulsion Laboratory
Jet Propulsion Laboratory: Leading robotic space exploration and planetary research for NASA.
6+ YOEBachelor's in related discipline with ~6+ years (or MS/PhD with reduced years), knowledge of NASA/JPL software standards, active U.S. citizenship and TS/SCI clearance, programming experience in C/C++/Java/Python, EM/UNIX experience.
C, C++, Java, Python, UNIX, Linux, VxWorks, Github, JIRA, Integrated Development Environments (IDEs), compilers, static analyzers, AIs, LLMs
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1w
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Security Control Assessor I (SCA I) (TS, w/ SCI Eligibility)
Los Angeles, California, United States
OnsiteFull Time
RedTrace Technologies
RedTrace Technologies: Provides cybersecurity and IT consulting for federal intelligence agencies.
5+ YOEUS citizen with TS/SCI eligibility,5+ years related experience,Bachelor's or 4 years equivalent,3+ years SAP/SCI/collateral IS security,ISSO/ISSM experience,DoD 8570 compliance within 6 months,able to lift 50lbs.
Risk Management Framework (RMF), Joint Special Access Program (SAP) Implementation Guide (JSIG)
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1d
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SCI Security Specialist
El Segundo, California, United States
$76k-$126k/yr OnsiteFull Time
ManTech
ManTech: Provides technology solutions for defense and intelligence agencies.
3+ YOECurrent TS/SCI clearance with CI polygraph, 3+ years SCI security experience, DISS/JPAS training within 6 months, familiarity with DoD/IC security policy, and bachelor’s degree or equivalent experience.
DISS, JPAS
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1mo
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Systems Architect – MBSE (Cameo, DoDAF, SysML) | TS/SCI
Warrenton or Washington D.C. or Irvine or Denver or Indianapolis or Grand Rapids or Lexington or Los Angeles or Louisville or Texas or San Francisco
$125k-$145k/yr OnsiteFull Time
Trace3
Trace3: Provides IT consulting and technology solutions for enterprise digital transformation.
3+ YOE3+ years enterprise architecture/MBSE experience with Cameo, DoDAF, SysML; strong technical, analytical, project management, and communication skills; active Top Secret/SCI clearance required; technical BA/BS preferred.
Cameo, Cameo Enterprise Architect, Cameo EA, DoDAF, MODAF, UPDM, SysML, UML, Rational Rhapsody, Sparx Enterprise Architect, MATLAB, STK, AFSIM, Simulink, Model Center, UAF, MBSE
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1mo
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Counterintelligence (CI) Analyst
Palmdale, California, United States
$94k-$106k/yr OnsiteFull Time
General Dynamics Information Technology
General Dynamics Information TechnologyNYSE: GD: Provides mission-critical IT services to government and defense organizations.
4+ YOECurrent TS/SCI required, ability to obtain TS/SCI + polygraph, US citizenship, 4+ years intelligence/CI experience, Bachelor’s or Associate’s+2yrs (or equivalent 4yrs), strong research, analysis, and communication skills.
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1w
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Contractor Program Security Officer (CPSO & AFSO)
Los Angeles, California, United States
$140k-$160k/yr OnsiteFull Time
Apex
Apex: Mass-manufactures standardized satellite buses for commercial and government use.
3+ YOEU.S. citizen with active TS or TS/SCI eligibility,3+ years DoD/IC security experience,knowledge of NISPOM/SAP/SCI,experience with DISS/NBIS/NISS and DD Form 254,clearance management and SCIF/COMSEC familiarity.
DISS, NBIS, NISS
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2mo
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Aerospace Engineer
El Segundo, California, United States
$190k-$240k/yr OnsiteFull Time
Alutiiq
Alutiiq: Provides government facilities, logistics, and professional support services.
15+ YOESenior aerospace engineer with 15+ years in missile warning systems, DoD experience, TS/SCI with SCI eligibility; BS in a related field; strong communication.
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3mo
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Operational Analysis and Modeling Engineer
Los Angeles, California, United States
$166k-$224k/yr OnsiteFull Time
Hermeus
Hermeus: Develops high-speed and hypersonic aircraft for defense and transportation.
5+ YOELead operational analysis and simulation; 5+ years in DoD/defense modeling; TS/SCI eligibility; strong software skills.
Python, modeling software
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3mo
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Sr System Engineer, Amazon Leo for Government (ALG), SEIT | MFG
El Segundo or Northridge
$151k-$205k/yr OnsiteFull Time
Amazon
AmazonNASDAQ: AMZN: Global online retail and cloud computing technology provider.
8+ YOE8+ years in space systems engineering; spacecraft design/integration/test; requirements derivation; system budgets; TS/SCI clearance.
Python, Matlab, LabVIEW, C/C++, Docker, Rust, Linux, AWS
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2mo
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Production Engineer
Palmdale, California, United States
OnsiteFull Time
Modern Technology Solutions
Modern Technology Solutions: Employee-owned engineering services delivering high-demand technical expertise in defense and security programs.
20+ YOE20+ years DoW program experience; active TS/SCI/SAP clearance; SAP/SCI experience in last 5 years; BS in related field; MS preferred; strong communication and independent work skills.
SAP
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4d
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Senior Product Manager
Washington or Pasadena
RemoteFull Time
Virtualitics
Virtualitics: Provides an AI-native platform for readiness and analytics.
4+ YOEUS citizen with TS/SCI or TS clearance (or ability to obtain), CS or technical degree or 1-2 years engineering,4+ years product or engineering experience,comfortable reading code and technical architecture,excellent communication.
APIs, SDKs, MCP/A2A, Virtualitics AI Platform (VAIP), SIPR, NIPR
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3mo
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Chief Architect
Los Angeles, California, United States
$190k-$215k/yr OnsiteFull Time, Contract
ITSC Secure Solutions
ITSC Secure Solutions: Provides engineering, cybersecurity, and program management to government agencies.
17+ YOEMinimum 17 years of relevant experience; active TS/SCI clearance; Bachelor's degree; MBSE and agile experience; lead enterprise engineering.
MBSE, Agile/Scrum, DevSecOps, API, Modular Open Systems Approach (MOSA)
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3mo
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Big Data Systems Engineer
Niceville or Tampa or Los Angeles or Huntsville or Denver or Washington
$142k-$200k/yr RemoteFull Time
KBR
KBRNYSE: KBR: Provides engineering, technology, and professional services for global markets.
10+ YOEActive TS/SCI clearance, bachelor’s in STEM, 10 years DoD experience, extensive big data and enterprise deployment expertise (CHEETAS).
SQL Server Big Data Cluster, CentOS, Ubuntu, RedHat, Windows Server, VMware, NFS, SMB, S3, Windows, Linux
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2mo
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Systems Engineer L4
Los Angeles, California, United States
$220k-$240k/yr OnsiteFull Time
Galapagos Federal Systems
Galapagos Federal Systems: Provides IT and cybersecurity services for federal defense programs.
15+ YOE15+ years in systems engineering/space systems; TS/SCI clearance; strong leadership and risk management; cross-domain integration experience.
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2mo
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Production Engineer
Palmdale, California, United States
OnsiteFull Time
Modern Technology Solutions, Inc.
Modern Technology Solutions, Inc.: Provides engineering, technology, and cybersecurity services for national security.
15+ YOE15+ years DoD program experience; 2+ years SAP/SCI; ability to work on high-visibility programs; strong communication; Bachelor’s in a related field; MS preferred; Active TS/SCI/SAP clearance; on-site.
SAP
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2mo
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Sr Principal Aeronautical Engineer
Palmdale, California, United States
$142k-$213k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
8+ YOEBachelor’s or higher in STEM with 8+ years, TS/SCI clearance, vehicle management systems leadership, on-site Palmdale work, travel up to 25%.
CATIA, MATLAB, Microsoft Visio, ICD, VMS, GNC, HIL, SIL
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1w
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Security Control Assessor (SCA) I
El Segundo or Los Angeles
$159k-$160k/yr OnsiteFull Time
Amatriot Group
Amatriot Group: Provides IT consulting and mission-critical technology support services.
5+ YOEActive TS/SCI, must obtain CI Poly; 5+ years related experience with 3+ years in SAP/SCI/Collateral systems; prior ISSO/ISSM or SCA experience; IAT Level 3 or IAM Level 1 certification.
Risk Management Framework (RMF), Joint Special Access Program (JSIG)
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2mo
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Senior Space Engineer
El Segundo, California, United States
$115k-$250k/yr OnsiteFull Time
BTAS
BTAS: A woman-owned small business delivering IT, engineering, and program management services to government customers.
3+ YOEActive TS with SCI eligibility; space systems experience; MA/MS required or BA/BS with 12+ years experience; full-time, 40 hours.
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