> Markdown version of [/jobs/ext/4391866-cyber-systems-security-engineering-stf-e4](https://www.wearedevelopers.com/jobs/ext/4391866-cyber-systems-security-engineering-stf-e4). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Cyber Systems Security Engineering Stf - E4 - **Company:** Lockheed Martin - **Location:** Littleton, CO, United States - **Salary:** $135,700.0 - $251,900.0 - **Contract:** Permanent contract - **Skills:** Software System Penetration Testing, Systems Engineering, Automation of Tests, CompTIA Security+, Cyber Security, Systems Architecture, Scripting, SC Clearance, Cyber Warfare, Vulnerability Analysis, Programming Languages - **Published:** October 31, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9280126/cyber-systems-security-engineering-stf-e4 ## About the Role * Foundational understanding of system and component functionality within a defense or aerospace context * Familiarity with cybersecurity requirements, architectures, and relevant frameworks (e.g., NIST SP 800-53, DoD Risk Management Framework) * Proven experience working in a testing, evaluation, or assessment environment * Strong written and verbal communication skills; able to translate technical findings for diverse audiences Preferred Attributes * Prior exposure to space, missile, or naval weapons systems * Hands-on experience with cybersecurity testing tools, vulnerability assessment, or compliance documentation * Analytical mindset with aptitude for systematic risk evaluation and problem-solving, * Bachelor's degree in Cybersecurity, Systems Engineering or a related field * Experience in Microsoft Office, Excel, and Power Point * Ability to research and analyze problems * Proficient in written and oral communications * Possess or willing to obtain Information Assurance Technical Level 2 Certification or higher (i.e., CompTia Security+) * Active Secret Clearance, with the ability to obtain and maintain a Top Secret Clearance; US Citizenship Desired Skills * Experience performing and documenting Threat Analysis * Experience with DoD/Space Force cybersecurity regulations * Experience with Security Technical Implementation Guide (STIG) tools and Assured Compliance Assessment Solution (ACAS) * Experience with DISA Enterprise Mission Assurance Support Service (eMASS) * Experience with scripting or programming languages * Familiarity with CAMEO and other MBSE tools * Self-starter with ability to work in a deadline driven environment and meet schedule commitments * Experience planning and conducting Penetration Testing (pentesting) #LMSpaceCyberEng ## Description The Fleet Ballistic Missile (FBM) program seeks a dedicated Cyber Systems Security Engineer to safeguard critical defense systems and ensure the resilience of strategic deterrence capabilities. You'll assess system designs for cybersecurity posture, conduct testing and risk analysis across system and component layers, and translate findings into actionable architectural and testing improvements. This role sits at the intersection of system engineering and cyber defense, directly supporting the Navy's mission to maintain affordable, credible strategic defense., * Evaluate systems and designs to determine cybersecurity characteristics and identify gaps * Plan and execute cybersecurity testing and risk analysis at the system and component level * Communicate assessment results, trends, and recommendations to program stakeholders and cross-functional teams * Provide input to system architecture, security design reviews, and mitigation strategies * Assist in developing and refining test plans that address System Security Engineering (SSE) requirements