Cyber Software Engineer Senior

Reference: 734396BRPosted: 2026-07-09Location: King of Prussia, PennsylvaniaClearance: SecretCompany: Lockheed MartinDescription: What We're Doing At Lockheed Martin Rotary and Mission Systems, we are shaping the future of defense and security through innovation, integrity, and visionary thinking. Our teams apply the highest standards of business ethics and technical expertise to design solutions that safeguard our nation and allies. Every day, we push boundaries to ensure mission success—and we invite you to be part of this critical work.Key Responsibilities• Design and implement secure system architectures for enterprise and mission-critical environments.• Apply cybersecurity engineering principles across the full system lifecycle, including requirements, design, implementation, verification, deployment, and sustainment.• Support Risk Management Framework (RMF) activities including control implementation, assessment, evidence collection, and ATO accreditation and sustainment.• Perform security hardening of operating systems, applications, databases, and network devices in accordance with applicable security baselines (e.g., STIGs, CIS, vendor hardening guides).• Develop and maintain system security documentation including RMF artifacts such as SSPs, architecture diagrams, SCTM, and POA&M.• Identify security gaps and propose remediation strategies to reduce cyber risk.• Support vulnerability management processes including scanning, triage, prioritization, and remediation tracking.• Implement and maintain DevSecOps pipelines integrating automated security testing and compliance validation.• Integrate tools such as SAST, DAST, container scanning, IaC scanning, and software composition analysis into CI/CD workflows.• Automate security control validation and compliance reporting using scripting and infrastructure automation tools.• Collaborate with cross-functional teams to ensure secure software delivery and continuous compliance.• Conduct cyber risk assessment activities, including threat modeling, vulnerability analysis, and evaluation of mitigation strategies.• Support incident response, remediation efforts, engineering roadmaps, and cyber resilience planning when required.• Travel or deploy to CONUS and OCONUS locations based on mission requirements.Please note: This position requires the ability to obtain and maintain a DoD government clearance at the Secret level.This position is based out of King of Prussia, PA or Colorado Springs, CO and the willingness to deploy OCONUSThis position supports both office and field/deployed environments. Candidates must be comfortable working in operationally demanding settings, including secure facilities and OCONUS deployments.Who We AreWe are Lockheed Martin, a global security and aerospace leader. Our Rotary and Mission Systems (RMS) business area delivers solutions that connect people, protect freedom, and advance the state of technology in areas such as naval systems, radar, cyber, and missile defense.Who You AreYou are a mission-driven engineer with a strong background in cybersecurity and systems engineering. You thrive in collaborative environments and are passionate about applying your skills to safeguard systems against evolving threats. Your ability to assess risks, develop secure designs, and validate solutions makes you a trusted partner in ensuring mission success.Why Join UsAt Lockheed Martin, your skills, training, and education are valued—and your future is limitless. You’ll join a team that empowers innovation, supports professional growth, and makes a tangible impact on global security. From day one, you’ll be part of something bigger: protecting what matters most.Basic Qualifications:Basic Qualifications• Bachelor’s degree in Cybersecurity, Systems Engineering, Computer Science, Information Technology, or related STEM discipline; equivalent experience may be considered.• Minimum 5+ years of experience in cybersecurity, systems engineering, information assurance or relevant experience• Experience securing Linux and/or Windows operating systems in enterprise or mission environments.• Experience with Automation tools specifically Ansible and familiarity with deployment automation• Experience with vulnerability scanning and remediation tools.• Experience with scripting languages and automation tools• Ability to obtain and maintain a DoD Secret clearance (or higher, as required).Desired Skills:Desired Qualifications• Possess an approved DoD 8570 baseline certification for IAT Level II (CISSP, CAP, etc.)• Experience supporting DoD weapon systems, aviation platforms, or classified mission systems.• Experience with Containerization technologies to include Kubernetes and Openshift• Experience with Virtualization platforms/hypervisors• Experience implementing container security and Kubernetes hardening.• Familiarity with SIEM Tools deployment and administration specifically ArcSight• Experience with Zero Trust architecture and cyber resiliency engineering.Security Clearance Statement: This position requires a government security clearance, you must be a US Citizen for consideration.Clearance Level: SecretOther Important Information You Should KnowExpression of Interest: By applying to this job, you are expressing interest in this position and could be considered for other career opportunities where similar skills and requirements have been identified as a match. Should this match be identified you may be contacted for this and future openings.Ability to Work Remotely: Part-time Remote Telework: The employee selected for this position will work part of their work schedule remotely and part of their work schedule at a designated Lockheed Martin facility. The specific weekly schedule will be discussed during the hiring process.Work Schedules: Lockheed Martin supports a variety of alternate work schedules that provide additional flexibility to our employees. Schedules range from standard 40 hours over a five day work week while others may be condensed. These condensed schedules provide employees with additional time away from the office and are in addition to our Paid Time off benefits.Schedule for this Position: 4x10 hour day, 3 days off per weekLockheed Martin is an equal opportunity employer. Qualified candidates will be considered without regard to legally protected characteristics.The application window will close in 90 days; applicants are encouraged to apply within 5 - 30 days of the requisition posting date in order to receive optimal consideration.At Lockheed Martin, we use our passion for purposeful innovation to help keep people safe and solve the world's most complex challenges. Our people are some of the greatest minds in the industry and truly make Lockheed Martin a great place to work. With our employees as our priority, we provide diverse career opportunities designed to propel, develop, and boost agility. Our flexible schedules, competitive pay, and comprehensive benefits enable our employees to live a healthy, fulfilling life at and outside of work. We place an emphasis on empowering our employees by fostering an inclusive environment built upon integrity and corporate responsibility.If this sounds like a culture you connect with, you’re invited to apply for this role. Or, if you are unsure whether your experience aligns with the requirements of this position, we encourage you to search on Lockheed Martin Jobs, and apply for roles that align with your qualifications.Experience Level: Experienced ProfessionalBusiness Unit: RMSRelocation Available: PossibleCareer Area: Cyber Security EngineeringType: Full-TimeShift: First