54 security systems engineer jobs at 30 companies in Hemet, CA
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Embedded Systems Security Engineer
Foster City or Irvine
$120k-$150k/yr OnsiteFull Time
6+ YOEBachelor's degree or equivalent experience; 6+ years in Embedded Linux, board bring-up, and BSP customization; 3+ years deploying device security on production hardware; advanced C and Python or Bash skills.
Embedded Linux, Hardware Root of Trust, Secure Boot, Linux kernel, dm-verity, OP-TEE, SELinux, AppArmor, cgroups, namespaces, seccomp, GitLab CI, GitHub Actions, HSMs, eFuses, OTP, A/B partitioning, U-Boot Verified Boot, Barebox, dm-crypt, ARM TrustZone, ARMv7-A, ARMv8-A, Yocto Project, BitBake, Buildroot, C, Python, Bash, SHA-256, SHA-384, PKI, LXC, crun
2w
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GROUND C2 SYSTEMS ENGINEER
Camp Pendleton, California, United States
$95k-$125k/yr OnsiteFull Time, Part Time
4+ YOERequires four years operating, administering, training, or testing ground C2 systems and expertise in developmental test and evaluation of C5I systems. Bachelor's degree and VMware, Red Hat, Windows Server, Cisco, and Security+ experience are desired.
Joint Tactical Common Operational Picture (COP) Workstation (JTCW), Tactical COP Server (TCS), Global Command and Control System (GCCS), Tactical Service Oriented Architecture (TSOA), Common Hosting Environment (CHE), Combat Data Network (CDN), Joint Battle Command - Platform (JBC-P), MAGTF Common Handheld (MCH), VMware ESXi, Red Hat Enterprise Linux, Windows Server, Cisco, Mobile MAGTF Test Suite (M2TS)
2mo
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Lead Systems Engineer (38883)
Yorba Linda, California, United States
$128k-$237k/yr OnsiteFull Time
9+ YOEDevelop and verify system-level requirements, manage traceability (DOORS), define interfaces and architecture, support integration and test, and develop test automation; eligible for US security clearance required.
DOORS, signal analyzer, signal generator, spectrum analyzer
1w
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Ground C2 Systems Engineer
Camp Pendleton, California, United States
$115k-$125k/yr OnsiteFull Time
4+ YOERequires 4 years operating, administering, training, or testing Ground C2 systems, C5I developmental test and evaluation expertise, and an active Secret clearance with US citizenship. Engineering or computer science degree and Security+ preferred.
Joint Tactical Common Operational Picture (COP) Workstation (JTCW), Tactical COP Server (TCS), Global Command and Control System (GCCS), Tactical Service Oriented Architecture (TSOA), Common Hosting Environment (CHE), Combat Data Network (CDN), Joint Battle Command - Platform (JBC-P), MAGTF Common Handheld (MCH), Mobile MAGTF Test Suite (M2TS), VMware ESXi, Red Hat Enterprise Linux, Windows Server, Cisco
1mo
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Electrical Systems Engineer, C2 Integration
Ashville or Irvine
$143k-$191k/yr OnsiteFull Time
6+ YOE6+ years post-grad experience in electrical/aerospace/systems engineering, hands-on prototyping and troubleshooting, experience developing automated test scripts (e.g., Python, MATLAB), US Secret security clearance required, willingness to travel up to 25%, first six months onsite in Irvine, CA.
Python, MATLAB, Lattice OS, IP-Based networks
2mo
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RF Systems Design Engineer IV
Carlsbad, California, United States
$133k-$166k/yr OnsiteFull Time
8+ YOEBachelors in EE/Systems (or equivalent experience), 8+ years in aerospace/defense or high-reliability electronics, RF systems and EW/space experience, requirements management, system architecture, design review experience, ability to obtain security clearance.
2mo
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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
1mo
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Lead Systems and RF System Engineer
Woburn or Boston or Arlington or Dayton or Melbourne or Carlsbad or Atlanta
$160k-$220k/yr OnsiteFull Time
10+ YOEBS in EE/Applied Math/Physics,10+ years RF systems experience, ability to obtain U.S. security clearance, RF design, integration, test, requirements and verification experience.
MATLAB, Python, ANSYS HFSS, Sonnet, C/C++
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Information Security Engineer
Carlsbad, California, United States
$105k-$120k/yr OnsiteFull Time
2+ YOE2+ years in information security/systems administration; experience with cloud security, identity, XDR, DLP, CSPM, SAML/OIDC/OAuth; strong analytical skills; bachelor's in CS/cybersecurity or equivalent.
Azure, SAML, OIDC, OAuth, Next-Gen Firewalls, DLP, XDR, CSPM, IAM, PAM, CloudSec
2mo
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Senior Network Engineer, Airborne Systems
Irvine, California, United States
$125k-$190k/yr OnsiteFull Time
7+ YOE7+ years network engineering experience designing, deploying, and sustaining secure, low-latency communications for UAS/airborne systems; Cisco IOS/IOS‑XE expertise; RF radios, datalinks, SATCOM, IP networking, and DoD cybersecurity (RMF/STIG) knowledge; active Secret clearance required.
Cisco IOS, Cisco IOS-XE, Splunk, SolarWinds, Cisco ISE, HAIPE, TACLANE, Cisco Unified Communications, VoIP, VTC, OSPF, EIGRP, RIPv2, BGP, IPv4, IPv6, NTP, SNMP, SSH, Syslog, RADIUS, TACACS+
1mo
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Sr. SLED Systems Engineer - Must Reside in Los Angeles/Orange County Area
Los Angeles or Orange County
$180k-$240k/yr RemoteFull Time
7+ YOE7+ years in systems or pre-sales engineering with strong networking (switching, routing, wireless, security), customer-facing demo/POC experience, troubleshooting skills, and excellent communication.
2mo
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Director, Technical Lead Forward Deployed Engineer
Irvine or Los Angeles or Santa Clara or Boston or Short Hills or New York City or Austin or Dallas or Houston
OnsiteFull Time
10+ YOE5+ Mgmt10+ years shipping production secure software systems with AI/ML focus, bachelor’s in science/engineering, cloud experience (Azure/GCP/AWS), 5+ years leadership, portfolio/GitHub evidence, strong communication and problem-solving.
Claude Code, Lovable, Cursor, Azure, GCP, AWS, GitHub
2mo
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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
1mo
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Thermal Protection System Engineer
Irvine or Littleton
$120k-$180k/yr OnsiteFull Time
3+ YOE3+ years designing and owning TPS hardware, arc-jet testing experience, CAD and GD&T proficiency, materials and thermodynamics knowledge, and ability to obtain U.S. security clearance.
CAD, GD&T
1mo
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AI Engineer Lead
Irvine, California, United States
$179k-$287k/yr OnsiteFull Time
10+ YOE10+ years software engineering experience, strong Python, hands-on LLM/LLMOps and RAG production experience, system design, eval-driven development, security/privacy controls, and bachelor’s degree or equivalent.
Python, MLOps, LLMOps, FinOps, IAM, SOC 2
2w
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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
17h
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System Engineer- Cyber Security Engineering Focus
St. Louis or Redlands or Washington or Vienna
$121k-$198k/yr OnsiteFull Time
8+ YOERequires 8+ years of related experience, bachelor's degree, DoD 8570 IAT II+ certification, US citizenship, and active or current Top Secret clearance with SCI eligibility. Experience with RMF, ATOs, vulnerability scanning, STIGs, Linux, and Windows.
XACTA, eMASS, ACAS, IAVM, Linux, Windows, Python, Java, React, Red Hat, CentOS, Jira, Confluence
4d
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Software Engineer II .Net
Irvine, California, United States
$124k-$150k/yr OnsiteFull Time
2+ YOERequires 2+ years of software engineering experience, strong C#/.NET, SQL and relational database skills, AWS experience, SDLC knowledge, system design, testing, and secure coding expertise.
C#, .NET, SQL, AWS, CI/CD, AI/ML, GenAI
3mo
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AI Engineer
Irvine or United States
$121k-$140k/yr OnsiteFull Time
4+ YOEBachelor's degree or equivalent experience, 4+ years building AI systems, strong programming skills, API and cloud experience, LLM, RAG, AI agent, integration, security, and governance expertise.
Python, NetSuite, ServiceNow, Microsoft 365, Azure, AWS, GCP, Azure OpenAI, Semantic Kernel, LangChain
3mo
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Software Engineer (C#/.NET)
New York City or Carlsbad
$101k-$134k/yr OnsiteFull Time
4+ YOE4+ years building scalable distributed systems; expert in C# or C++; strong CS fundamentals, API design, web service scalability/security, and database (MSSQL) experience.
Windows Server, SQL Server, IIS, .NET, C#, C++, MSSQL, Perforce, Xbox Live, Sony NP, Games for Windows Live
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