63 principal security engineer jobs at 19 companies in Agoura Hills, CA
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Sr Principal Engineer Digital
Manhattan Beach, California, United States
$156k-$235k/yr OnsiteFull Time
8+ YOESTEM degree with 4–8+ years digital engineering experience (depending on degree), circuit and board design, unit verification, hardware troubleshooting, teamwork, and strong communication skills; ability to obtain security clearance.
Siemens Mentor Graphics Xpedition, HyperLynx, Electronic design tools
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Sr Principal Engineer Digital
Manhattan Beach, California, United States
$156k-$235k/yr OnsiteFull Time
8+ YOEBachelor's in STEM with 8+ years (or Master's with 6+, PhD with 4+) in digital/design engineering; experience in circuit/board design, digital communications/signal processing, verification, manufacturing, and lab testing; excellent communication; ability to obtain security clearance.
Siemens Mentor Graphics Xpedition, Siemens EDA HyperLynx
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Principal Embedded Security Engineer
Los Angeles, California, United States
$180k-$260k/yr HybridFull Time
10+ YOEU.S. citizen required. Bachelor’s +10 years (or HS +14 years) in networking embedded software. Expertise in C/C++, Linux, IP networking (L2/L3), cryptographic algorithms/protocols, background check and drug test required.
C/C++, Python, Linux, AES, TLS, SSL, IPsec, MACsec, VPN, DMVPN, HMAC, DSA
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Principal Engineer, Architecture
Glendale, California, United States
$320k-$380k/yr OnsiteFull Time
12+ YOE12+ years engineering experience with staff/principal scope; expertise in distributed systems, data modeling, API design, security; strong mentorship and technical writing skills.
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Principal AI Security Engineer
Long Beach, California, United States
$125k-$181k/yr HybridFull Time
10+ YOE10+ years cybersecurity experience with 3+ years focused on AI/ML security, proven Azure AI stack expertise, knowledge of LLM vulnerabilities, data security, and AI governance.
Azure OpenAI Studio, Azure AI Foundry, Azure AI Search, Azure Machine Learning, Azure Kubernetes Service (AKS), Model Context Protocol (MCP), REST, gRPC, Python, PowerShell, Bash, Azure Entra ID
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Principal Manufacturing Engineer
Melbourne or Dallas or Austin or Cypress
OnsiteFull Time
8+ YOEBachelor’s degree in engineering with 8+ years of progressively complex engineering experience (or equivalent), U.S. citizenship, active or obtainable DOD security clearance, specialties in production/industrial/welding/tooling/testing/robotics possible.
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Senior to Principal Mechanical Engineer (Maritime)
Los Angeles, California, United States
$140k-$220k/yr OnsiteFull Time
6+ YOEB.S. or M.S. in relevant engineering, 6+ years (Senior) or 10+ years (Principal) mechanical design experience, expertise in pressure-loaded structural design, CAD and FEA proficiency, prototyping/test experience, and U.S. citizenship with ability to obtain security clearance.
CAD, FEA
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Principal Component Engineer
El Segundo, California, United States
$177k-$239k/yr OnsiteFull Time
14+ YOEBachelor's in engineering or related field, Tier 5 (T5) security eligibility (U.S. Person), extensive EO/IR, laser and electro-optical systems experience, systems engineering and test/qualification experience, strong communication and problem-solving skills.
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Principal Mechanical Engineer
El Segundo or Los Angeles
$175k-$215k/yr OnsiteFull Time
8+ YOEBachelor’s degree in mechanical engineering or related field, 8+ years in aerospace and defense mechanical design and integration, CAD, structural analysis, military standards, and ability to obtain U.S. security clearance.
SolidWorks, FEA, NASTRAN, ABAQUS, ANSYS, CFD, COMSOL, CNC, MIL-STD-810, ARINC
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Principal Component Engineer
El Segundo, California, United States
$177k-$239k/yr OnsiteFull Time
1+ YOEBachelor's in engineering/CS/math/physics/chemistry, 1+ years EO/IR or laser/electro-optical systems experience, familiarity with military standards, ability to develop and qualify EEE parts and suppliers, and must meet U.S. export control (U.S. Person) and Tier 5 security requirements.
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Principal Electric Propulsion Engineer
Long Beach, California, United States
$162k-$243k/yr OnsiteFull Time
12+ YOE12+ years in propulsion system development, an engineering bachelor's degree, electric propulsion experience, systems modeling, testing, systems engineering, U.S. citizenship, and ability to obtain a security clearance.
Amesim, EcosimPro, Simulink, Simscape, Jama, Python, NX, CAD, GD&T, Teamcenter, Windchill, National Instruments
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Principal Electric Propulsion Engineer
Long Beach, California, United States
$162k-$243k/yr OnsiteFull Time
12+ YOE12+ years in propulsion system development, an engineering bachelor's degree, propulsion modeling and analysis expertise, electric propulsion experience, U.S. citizenship, and ability to obtain a security clearance.
Amesim, EcosimPro, Simulink, Simscape, Jama, Python, NX, CAD, GD&T, Teamcenter, Windchill, National Instruments
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Principal Program Systems Integration Engineer
El Segundo, California, United States
$140k-$200k/yr OnsiteFull Time
15+ YOE10+ MgmtActive Secret clearance, MS in engineering or computer science, 15+ years systems engineering, 10+ years leading technical teams, proficiency with Microsoft Office, work onsite in a secure facility.
Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Microsoft Teams, Jira, Confluence
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Principal Systems Engineer (ONSITE)
El Segundo, California, United States
$118k-$225k/yr OnsiteFull Time
8+ YOEActive transferable U.S. Secret security clearance required, MBSE, JIRA/Confluence, DOORS NGF, RF signal processing, systems requirements and verification experience, STEM degree with 8+ years experience (or advanced degree with 5+).
MBSE, JIRA, Confluence, DOORS NGF, EVMS, GPS simulators
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Principal Program Systems Integration Engineer
El Segundo, California, United States
$140k-$200k/yr OnsiteFull Time
15+ YOE10+ MgmtActive Secret clearance (ability to obtain Top Secret), MS in technical field, 15+ years systems engineering, 10+ years leading technical teams, proficiency with Microsoft Office; on-site in secure facility.
Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Microsoft Teams, Jira, Confluence
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Principal Electrical Systems Design Engineer
Torrance, California, United States
$179k-$216k/yr OnsiteFull Time
8+ YOEBachelor's degree in Systems/Aerospace/Electrical Engineering, 8+ years product lifecycle experience, high-voltage power distribution, three-phase AC/HVDC, PCB and harness design, DFMEA, Jira and project software experience, ability to obtain US security clearance and meet ITAR eligibility.
Jira, Microsoft Project, Smartsheet
3w
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Principal Network Engineer
Santa Fe Springs or Los Angeles
$135k-$165k/yr OnsiteFull Time
10+ YOERequires 10+ years of network engineering experience, enterprise routing, switching, firewalls, segmented OT/IT networks, core network services, new-facility infrastructure, and ability to obtain a U.S. security clearance.
LAN, WAN, SD-WAN, Palo Alto, Fortinet, AWS GovCloud, Direct Connect, VPN, DNS, DHCP, IPAM, NMS, Cisco, Juniper, Arista, NIST SP 800-171, CMMC, ITAR, OT, ICS, Purdue model
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Principal, Security Engineering & Vulnerability Management for WB Games
Burbank or New York City
$177k-$329k/yr HybridFull Time
10+ YOE10+ Mgmt10+ years technical security experience and 10+ years supervisory experience; expertise in vulnerability management, secure software development (GitHub/Perforce, SAST/DAST, CI/CD, secrets management), cloud security, SIEM, EDR/XDR, IAM, and familiarity with ISO/NIST/PCI/GDPR/CCPA/SOX.
GitHub, Perforce, SAST, DAST, secrets management, CI/CD, OWASP, SIEM, EDR/XDR
3w
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Principal Mission Cloud Engineer
Denver or Long Beach
$205k-$320k/yr OnsiteFull Time
10+ YOE10–15+ years in cloud engineering; AWS and Azure expertise; active Secret clearance; DoD 8140 IAT Level III certification; cloud security, RMF, ATO, NIST, and classified infrastructure experience; bachelor's degree or equivalent.
AWS, Azure, VPCs, VNets, transit gateways, IAM, STIGs, NIST 800-53, CNSSI 1253, ICD 503, JSIG, RMF, ATO, FedRAMP High, CMMC, DevSecOps, Infrastructure as Code (IaC), CI/CD, Cross Domain Solutions (CDS), DNS
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Distinguished Engineer, AI Threat Defense
Eagan or Frisco or New York City or Richmond or San Francisco or Los Angeles or Irvine or McLean or Washington
$198k-$368k/yr HybridFull Time
12+ YOE12+ years of cybersecurity engineering experience at Principal, Staff, or Distinguished Engineer level, with AI threat defense, production AI systems, mature SOC/CIRT, enterprise security architecture, and technical influence expertise.
Model Context Protocol (MCP), SIEM, SOAR, SAST, AppSec, AWS, Azure, GCP, LLM
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