45 principal security engineer jobs at 23 companies in Ladera Ranch, CA
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Principal Cyber Security Engineer, Strategy and Architecture
Carlsbad or Reston or Marlborough or Tempe or San Jose or New York City
$230k-$363k/yr HybridFull Time
10+ YOEBachelor's or Master's in a technical field, 10+ years in security/systems/network engineering, strong risk analysis and secure system design experience, hands-on with enterprise security tools, US citizenship, up to 20% travel.
firewalls, IDS/IPS, PKI, SIEM/SOAR, EDR/NDR, CSPM/CNAPP, zero-trust, NIST, ISO 27001, GDPR, CCPA
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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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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
3w
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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 Mechanical Engineer - Launcher Systems
Los Angeles, California, United States
$180k-$230k/yr OnsiteFull Time
10+ YOE10+ years in aerospace/defense mechanical design and system integration; BS in Mechanical Engineering; launcher systems experience; US citizenship and ability to obtain security clearance.
SolidWorks, CAD
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Information Security Engineer, Principal
Oakland or Long Beach or El Dorado Hills or Rancho Cordova or San Diego or Woodland Hills or California
$168k-$252k/yr HybridFull Time
10+ YOEBachelor's or equivalent, 10+ years relevant experience (2+ years in Application Security), strong knowledge of OWASP Top Ten and STRIDE, Agile, regulatory certifications (HIPAA, SOC2, PCI-DSS, FedRAMP), AI/ML experience desired.
OWASP Top Ten, STRIDE, CICD, AI/ML
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Principal Network/ Systems Engineer
Bedford or Carson or Smyrna or Columbus or Fort Lee
OnsiteFull Time
12+ YOESenior IT infrastructure engineer with DoD/federal experience; strong network and systems integration, security tooling, and IaC.
Configuration Management, Patch Management, Asset Management, Enterprise Software License Compliance, Network and Systems, Security, Automation
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Principal Systems Engineer - Algorithms (ONSITE)
Fullerton, California, United States
$118k-$225k/yr OnsiteFull Time
8+ YOEProficient in MATLAB and Simulink; experienced in data analysis and algorithm development; capable of independent work and collaboration; DoD Secret security clearance or eligibility; STEM degree with extensive experience.
MATLAB, Simulink, Data analysis
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Principal Network Engineer
Los Angeles, California, United States
$155k-$185k/yr OnsiteFull Time
8+ YOE8+ years in networking architecture/design; enterprise networks; data centers; cloud; security; leadership.
BGP, OSPF, EIGRP, MPLS, TCP/IP, QoS, PfR, PoE, NTP, DHCP, CDP, SNMP, VTP, VLANs, VDC, Datacenter Zones, Spanning Tree, VRF, Cabling
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Principal Software Engineer (Platform Team)
Bastrop or Hawthorne or Palo Alto or Redmond or Brownsville or Sunnyvale
HybridFull Time
7+ YOE7+ years building and scaling production AI platforms; 9+ years in lieu of degree; design and operate large-scale AI/ML platforms; Docker/Kubernetes; security-minded.
Docker, Kubernetes, Multi-Cloud, Frontier Model Providers, Python, CI/CD, Security tooling
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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 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.
2w
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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 Electrical Design Engineer
Phoenix or Huntsville or Cypress or Andover or Chantilly or Alpharetta or Torrance or Gulf Breeze
OnsiteFull Time
6+ YOEBS in Electrical/Computer Engineering; 6+ years embedded hardware design; high-speed digital design; lead and mentor engineers; travel; security clearance awareness
Cadence Allegro, Mentor, JAMA, DOORS, JIRA, Confluence, FMEA/DFM/DFT
1w
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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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Senior Principal Engineer, Architecture ASIC / System
Toronto or Ottawa or Burlington or Irvine or Morrisville or Santa Clara or Westborough
$192k-$255k/yr OnsiteFull Time
14+ YOESenior architect with 14+ years in system architecture for SoC; expertise in interconnects, memory hierarchies, power management, security; strong technical leadership.
IP evaluation, IP block, SoC architecture
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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 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
2w
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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
3w
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Principal Algorithm & Signal Processing Engineer
Arlington or Dayton or Woburn or Boston or Melbourne or Carlsbad
$206k-$284k/yr OnsiteFull Time
8+ YOEU.S. citizen able to obtain security clearance, BS/MS/PhD in EE/Applied Math/Physics or related, typically 8+ years experience in radar/EW/RF sensing, proficiency in MATLAB/Python/C/C++, strong communication and leadership.
MATLAB, Python, C/C++
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