107 software security engineer jobs at 44 companies in Temecula, CA
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Security Software Engineer
Costa Mesa, California, United States
OnsiteFull Time
Anduril Industries: Defense technology building autonomous military hardware and software.
0+ YOEPursuing or have completed a Bachelor's or Master's in CS/Engineering/Math/Physics; 0.25–2 years of technical experience; proficiency in Rust, C/C++, or Go; cybersecurity fundamentals; embedded systems knowledge; US person with clearance eligibility.
General Atomics: Designs and manufactures unmanned aircraft and nuclear technology systems.
8+ YOERequires advanced software engineering experience for complex integrated systems, ability to lead/mentor, support integration and releases, and obtain DoD security clearance.
General Atomics Aeronautical Systems: Designs and manufactures unmanned aircraft and radar systems.
8+ YOEBachelor's level education or equivalent experience, 6+ years (bachelors) / 4+ (masters) / 2+ (PhD) software development; ability to obtain DoD security clearance; experience with system architecture, integration, and Agile development.
ViasatNASDAQ: VSAT: Provider of global satellite-based connectivity and secure communication solutions.
5+ YOEUS citizenship,5+ years security experience,5+ years engineering/software development,BS in CS/CE or equivalent,strong AWS and GCP cloud security experience,knowledge of encryption,IAM,network segmentation,Terraform.
Azure, AWS, GCP, Terraform, Python, Java, GitHub, Security Hub, GuardDuty, Inspector, Google Security Command Center Enterprise, Google SecOps
TwitchNASDAQ: AMZN: Operates a global live streaming platform for interactive content.
3+ YOEBachelor's in Computer Science, Engineering, or equivalent experience; 3+ years building and operating backend services; proficiency in Go, Java, Python, or similar; AWS and infrastructure-as-code experience.
Go, Java, Python, AWS, Infrastructure as Code (IaC), LLM-powered tooling, Model Context Protocol (MCP)
AVEVA: Industrial software for engineering and operational performance management.
Strong software development in C# (.NET) or Node.js; hands-on Microsoft Azure cloud experience; CI/CD, DevOps, container experience; knowledge of cloud architecture, networking, and secure development practices.
Woburn or San Diego or Arlington or Dayton or Melbourne or Carlsbad
$110k-$120k/yrHybridFull Time
Systems & Technology Research: Develops advanced technology for national security and defense applications.
Bachelor's degree in computer science or related field, Python expertise, data science and algorithm development experience, software architecture, Agile, testing, and ability to obtain a security clearance requiring US citizenship.
5+ YOE5+ years software engineering or test automation experience; proficiency in Java and Python; networking, mobile, cloud, security testing experience; Bachelor’s in CS or related required.
BDNYSE: BDX: Manufactures medical devices, surgical instruments, and pharmacy automation systems.
3+ YOEBachelor's in cybersecurity/computer science or related; 3+ years in product security/product or software development or QA; experience with static code analysis and vulnerability scanning; foundational cryptography and PKI; knowledge of threat modeling and medical-device security.
Black Duck, Coverity, Veracode, Nessus, Snyk, Metasploit, SBOM, TLS, mTLS, HL7, FHIR, Bluetooth LE, STRIDE, PASTA, NIST, OWASP, PKI
Auto Club Enterprises: Provides roadside assistance, insurance, and travel services to members.
10+ YOE1+ MgmtRequires 10+ years building secure, reliable, high-performance software with distributed systems experience, modern AI/LLM or applied ML expertise, security knowledge, API and event-driven architecture skills, and strong presentation abilities.
ViasatNASDAQ: VSAT: Provides global satellite broadband and secure networking communication services.
8+ YOE8+ years software engineering experience with C/C++ on Linux, encryption/OpenSSL, Linux security controls, Bash/Python/Lua scripting, Git/Perforce, and an active US Secret Clearance; bachelor’s degree or equivalent.
Software Development Engineer, Security Platform, Security Platform
San Francisco or Irvine or Seattle or Los Angeles County
$144k-$224k/yrOnsiteFull Time
AmazonNASDAQ: AMZN: Global online retail and cloud computing technology provider.
3+ YOEBachelor's degree or equivalent experience, 3+ years building production backend services, proficiency in Go, Java, Python, or similar, hands-on AWS, infrastructure as code, and cross-team technical leadership.
Silvus TechnologiesNYSE: MSI: Develops advanced mobile ad-hoc network radios for mission-critical communications.
2+ YOEBS in EE/CE/CS + 2+ years embedded software development (or MS), expertise in C and Linux kernel driver development, U.S. citizenship required, background check and drug test contingent, experience with networking, security, and device drivers.
C, Linux kernel, ARM, RISC-V, AMD UltraScale+ MPSoC, Microchip PolarFire SoC, IPsec, NIST FIPS 140-3, NIAP Common Criteria, MAC, socket programming, Internet/Ethernet protocols
VSolvit: Providing technology services and data solutions for government agencies.
0+ YOE0–4 years software development experience; proficiency in C++ for desktop applications; familiarity with OOP, multithreading, Git, CMake, and Python; U.S. Citizenship and active Secret DoD clearance required; CompTIA Security+ required.
Senior Software Engineer, Game Engine & World Systems (Autonomy)
Poway, California, United States
OnsiteFull Time
Applied Intuition: Developing software and simulation infrastructure for autonomous vehicles.
7+ YOE7+ years software engineering experience building spatial/world representation systems; expert C++ (C++20); Python and shell proficiency; computational geometry and real-time performance experience; U.S. citizenship and ability to obtain security clearance.
C++ (C++20), Python, Shell, Cursor, Claude Code, GitHub Copilot, Linux, Docker, Nix, Bazel
Field AI: Develops autonomous software brains for robots in unstructured environments.
5+ YOEBachelor's in CS/CE/Cybersecurity; 5+ years in infrastructure or cloud security; strong software and networking fundamentals; Kubernetes, CI/CD, cloud-native infra; IAM and secrets; threat modeling; cross-functional collaboration.
Rockstar GamesNASDAQ: TTWO: Developer and publisher of world-class interactive entertainment and games.
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
United States or Santa Ana or San Francisco or Oakland or Berkeley or New Jersey or Texas or Florida or Shanghai or Hong Kong or Japan or Canada or Mexico or Germany or France
$141k-$229k/yrHybridFull Time
Collectors: Providing authentication and grading services for high-value collectibles.
6+ YOE6+ years engineering experience, deep C#/.NET backend skills, frontend experience with React/Svelte/TypeScript, payments/gateway and distributed-systems experience, observability and security mindset.