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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Embedded Systems Security Engineer (Hybrid - Largo, FL) Secret clearance required - **Company:** RTX - **Location:** Largo, FL, United States - **Experience:** Expert - **Salary:** $107,500.0 - $204,500.0 - **Contract:** Permanent contract - **Skills:** Systems Engineering, Confluence, JIRA, Computer Engineering, Nmap, Software Requirements Analysis, Verification and Validation (Software), Systems Architecture, Strategies of Testing, DOORS (Software), SC Clearance, Atlassian Tools, Nessus - **Published:** August 28, 2026 - **Apply:** https://www.techcareers.com/job.asp?id=3367873807&tx=KR9191FFR&pt=1&aff=0B19D771-A501-4A5E-8338-2A822B784D54&utm_source=Job%20Feed&utm_medium=textkernel&utm_campaign=DE&utm_term=0B19D771-A501-4A5E-8338-2A822B784D54 ## About the Role Active and transferable U.S. government issued security clearance is required prior to start date.?, * Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 8 years of prior relevant experience, or an Advanced Degree in a related field and a minimum of 5 years of experience. * U.S. citizenship is required , as only U.S. citizens are eligible for a security clearance * Active and transferable SECRET U.S. government issued security clearance is required prior to start date * Experience performing or leading cybersecurity or product security engineering activities for embedded, aerospace, defense, or other mission-critical systems * Experience applying Risk Management Framework (RMF) processes to system certification, authorization, or security assessment activities * Experience developing and reviewing technical security documentation, including security requirements, security assessments, certification artifacts, and verification documentation * Experience decomposing, allocating, implementing, and verifying cybersecurity requirements across system architectures, interfaces, and components * Experience analyzing system requirements, models, diagrams, interfaces, and architectures to identify security risks and develop security requirements and mitigation strategies * Experience leading or coordinating security-focused system verification and validation activities, including development of test strategies, test plans, procedures, test conduct, results analysis, and remediation recommendations * Experience coordinating cybersecurity engineering activities across systems engineering, software, hardware, and test organizations, * Active and transferable TOP SECRET clearance * Extensive experience with NSA cryptographic certification, Cross Domain Solution (CDS) requirements, and NIAP * Advanced experience with DOORS, JIRA, Confluence, Cameo (MBSE), or other systems modeling and agile tools * Advanced Security-related certifications (e.g., CISSP) and/or an Electrical or Computer Engineering degree * Extensive experience with security protocols used in embedded systems and communications for aerospace environments * Experience leading the use of DoD-focused security assessment tools such as SCC, NMAP, Evaluate-STIG, Nessus, ACAS, Vulnerator, eMASS, etc * Experience with satellite systems, communication systems, and complex mission-critical embedded systems * Experience providing technical direction and mentoring to other security engineers * Demonstrated ability to lead security efforts across multidisciplinary engineering teams, resolve complex technical issues, and drive results * Demonstrated ability to communicate complex security risks and recommendations to engineering, program, and customer leadership ## Description The ideal candidate will be proficient in requirement allocation and decomposition, analyzing system architectures, designing security features and principles, assessing security vulnerabilities (scanning), and formal cybersecurity test and evaluation (CT&E). The candidate will report to the Senior Manager of Cybersecurity Engineering and work collaboratively with cross-functional engineering teams on the program they support., * Lead RMF Authorization to Operate (ATO) and NSA Type 1 Cryptographic Certification activities, including planning, development and review of security documentation, assessment evidence, findings, and remediation activities * Lead cybersecurity requirement decomposition, allocation, implementation, and verification across system-level architectures, interfaces, and major system components * Perform system-level analysis of requirements, models, interfaces, and architectures to identify security vulnerabilities and establish security requirements, mitigations, and verification methods * Lead security engineering participation in system design reviews and document system-level security risks, technical recommendations, and required corrective actions * Lead integration of security requirements across systems engineering, software, hardware, and test disciplines and track security issues through implementation, verification, and closure * Lead security-focused SV&V activities, including development of test strategies, test plans, test procedures, test cases, test conduct, results analysis, and remediation recommendations * Coordinate cybersecurity engineering activities across multiple engineering disciplines and resolve security issues affecting system requirements, architecture, design, implementation, and verification * Evaluate security threats, vulnerabilities, technologies, and applicable security guidance and determine impacts to system architectures, requirements, and certification activities * Provide technical direction to other security engineers and review security engineering products, analyses, and verification results for assigned systems ## Related Videos - [Improving quality with Agentic AI with Rovo Dev and Xray](https://www.wearedevelopers.com/videos/2005-improving-quality-with-agentic-ai-with-rovo-dev-and-xray) - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [Collaboration Quantified: Lessons from Open Source Developer Networks](https://www.wearedevelopers.com/videos/1422-collaboration-quantified-lessons-from-open-source-developer-networks) - [Software Security 101: Secure Coding Basics](https://www.wearedevelopers.com/videos/220-software-security-101-secure-coding-basics) - [Cyber Security: Small, and Large!](https://www.wearedevelopers.com/videos/259-cyber-security-small-and-large) - [Integrate your Cognitive Assistant with 3rd-party DBs and software](https://www.wearedevelopers.com/videos/249-integrate-your-cognitive-assistant-with-3rd-party-dbs-and-software) ## Related Articles - [Events like RSAC Get You CISOs. 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