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# Sr. Embedded Systems Security Engineer (Onsite - Largo, FL or Marlborough, MA) Secret clearance required

- **Company:** RTX
- **Location:** Marlborough, MA, United States
- **Experience:** Expert
- **Salary:** $86,800.0 - $165,200.0
- **Contract:** Permanent contract
- **Skills:** Systems Engineering, Confluence, JIRA, Computer Engineering, Nmap, Software Requirements Analysis, Verification and Validation (Software), Systems Architecture, DOORS (Software), Software Verification, SC Clearance, Atlassian Tools, Nessus
- **Published:** August 27, 2026
- **Apply:** https://dejobs.org/x/x/301A97D4CF1F4F9DBC4DE059222B64D0/job/

## About the Role

* Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 5 years of prior relevant experience, or an Advanced Degree in a related field and a minimum of 3 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 cybersecurity or product security engineering activities for embedded, aerospace, defense, or other mission-critical systems
 * Experience developing or executing security-focused system verification and validation activities, including test plans, procedures, test conduct, and results analysis
 * Experience applying Risk Management Framework (RMF) processes to system certification, authorization, or security assessment activities
 * Experience decomposing, allocating, implementing, and verifying cybersecurity requirements using systems engineering practices
 * Experience analyzing system requirements, models, diagrams, interfaces, or architectures to identify security risks and develop mitigation recommendations
 * Experience developing technical security documentation, including security requirements, assessments, certification artifacts, or verification documentation, * Active and transferable TOP SECRET clearance
 * Experience with NSA cryptographic certification, Cross Domain Solution (CDS) requirements, and NIAP
 * Experience with DOORS, JIRA, Confluence, Cameo (MBSE), or other systems modeling and agile tools
 * Security-related certifications (e.g., CISSP, Security+) and/or an Electrical or Computer Engineering degree
 * Experience with security protocols used in embedded systems and communications for aerospace environments
 * Experience using DoD-focused security assessment tools such as SCC, NMAP, Evaluate-STIG, Nessus, ACAS, Vulnerator, eMASS, etc
 * Experience with satellite systems, communication systems, or other mission-critical embedded systems
 * Ability to collaborate across engineering disciplines and communicate technical security risks and recommendations to engineering and program leadership
 * Demonstrated ability to drive security activities to completion and influence technical decisions

## Description

The ideal candidate will be skilled 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., * Perform RMF Authorization to Operate (ATO) and NSA Type 1 Cryptographic Certification activities, including development and maintenance of required security documentation, evidence, and assessment artifacts

 * Perform cybersecurity requirement decomposition, allocation, implementation, and verification across assigned system components and interfaces using systems engineering practices
 * Analyze system requirements, models, interfaces, and architectures to identify security vulnerabilities, develop mitigation recommendations, and maintain traceability between security requirements and system implementation
 * Lead security engineering inputs for assigned system design reviews and document security risks, requirements, recommendations, and resolution status
 * Coordinate with systems engineers and software/hardware developers to integrate security requirements into system designs and track security issues through verification and closure
 * Develop and execute security-focused Software Verification & Validation activities, including test plans, test procedures, test cases, test conduct, results documentation, and remediation analysis
 * Coordinate assigned cybersecurity engineering activities across systems engineering, software, hardware, and test organizations and provide status and technical findings to program leadership
 * Assess applicable security threats, vulnerabilities, and industry practices and evaluate their impact on assigned system architectures, requirements, and implementations


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