Cyber Systems Security Engineer

At Lockheed Martin - Rotary and Mission Systems, we're shaping the future of Undersea Warfare (USW) systems. Our mission is to develop innovative technologies that secure our nation’s defense. We are integrating state-of-the-art cybersecurity solutions into mission-critical systems to ensure resilience, integrity, and continued superiority under the sea and across domains.

As a Cyber Systems Security Engineer, you will take a leadership role in enhancing cybersecurity across SWFTS (Submarine Warfare Federated Tactical Systems). You’ll drive the development and integration of modern cyber solutions that protect and empower critical Department of Defense (DoD) assets.

Key responsibilities include:

Designing, implementing, and maintaining security controls to protect system confidentiality, integrity, and availability

Leverage guidance from Risk Management Framework (RMF), Security Requirements Guides (SRG), and Security Technical Implementation Guides (STIG) to advance cyber controls in a system security architecture

Integrating secure configuration tools and processes for Linux and Windows environments

Performing security assessments and validating configurations through automated testing and tailored solutions

Collaborating across teams on secure system and network design that balances mission goals and cyber protection

Leading technical meetings, translating security requirements into actionable engineering tasks, and mentoring team members

Please note:

This position is located in Manassas, VA.

This position requires the ability to obtain and maintain a DoD government clearance at the Secret level.

We are a mission-driven organization built on collaboration, innovation, and impact. From concept through deployment, our cybersecurity professionals work alongside world-class engineers and developers to secure complex systems in some of the most challenging environments on Earth—and below it. At RMS, we foster a culture of Creativity, collaboration, and continuous learning.

You are an experienced cybersecurity engineer with strong technical depth and a leadership mindset. You thrive in fast-paced environments and are passionate about defending against evolving threats. You balance innovation with pragmatism and understand the importance of aligning security with mission success.

Why Join Us

At 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.

A Bachelor’s degree in Cybersecurity, Computer Science, Computer Engineering, or related engineering or IT field with 3 years of relevant experience or master’s degree and 2+ years of relevant cyber experience; Or 7 years of relevant experience.

Experience with Linux systems and large system development

Experience with basic networking switch/router/firewall/IDS concepts

Experience developing Cyber Security Solutions (in any form) as a team

Experience in large system C++/Java development

Experience with Git/Gerritt

Knowledge of containers and securing the infrastructure through the cloud

Experience in agile methodologies that highlight Atlassian tools, namely Jira and Confluence

Experience in model-based system engineering concepts (MBSE)

Experience in researching new Cybersecurity capabilities, performing trade studies, and providing expertise to peers and leadership.

Experience in micro-service based app development

Experience in network security and network-centric development concepts

Proficiency with Cyber best practice security concepts, models, and methods, (e.g., zero trust architecture and maturity model, advanced authentication methods, STIG coding practices)

Ability to communicate and work effectively with internal members and external customers

Creative thinker with strong analytical, problem-solving skills, and a continuous learning mindset

Linux experience in scripting and/or development, e.g. Python, C, C++, Rust

Strong communication and leadership skills to engage internal teams and external stakeholders

Possess (or must obtain within 6 months of hiring) an approved DoD 8570 baseline certification for IAT Level II (Security+, GSEC, etc.)

This position requires a government security clearance, you must be a US Citizen for consideration.

Secret

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.

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.

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.

4x10 hour day, 3 days off per week

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

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