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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # System Engineer Sr - Level 3 - Top Secret Clearance Required - **Company:** Lockheed Martin - **Location:** King of Prussia, PA, United States (Remote available) - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Testing (Software), Agile Methodology, Systems Engineering, Confluence, JIRA, Continuous Integration, DevOps, Scrum Methodology, Software Deployment, Verification and Validation (Software), System Testing, Integration Tests - **Published:** July 15, 2026 - **Apply:** https://www.clearancejobs.com/jobs/8984505/system-engineer-sr-level-3-top-secret-clearance-required ## About the Role Successful Applicants will demonstrate effective communication skills, desire challenges and be willing to engage in frequent internal interactions with peers, teammates, and customers. Selected applicants must meet eligibility requirements for access to classified information, and must maintain the required security throughout the course of employment Basic Qualifications: * Experience working with Agile teams leveraging Scrum or Kanban * Ability to communicate effectively and work in a collaborative environment * Experience developing Systems Engineering artifacts (e.g. requirements, architecture, procedures, etc.) * This position requires a Top Secret clearance with investigation date within 5 years clearance prior to start with the ability to obtain and maintain an SCI clearance Desired Skills: * Experience with model-based systems engineering (MBSE) and proficiency with systems engineering toolsets * Experience with modern engineering practices such as Cross-Functional Agile teams * Experience with Systems Engineering tools such as JIRA, and Confluence. * Ability to interact with software developers to ensure mission requirements are satisfied * Experience with Integration testing, software testing, system testing and independent verification and validation * Experience with DevOps, CI/CD Pipelines, and deploying applications to test environments * Experience writing, reviewing, tracing, and verifying requirements * Experience working with external interfaces and generating documentation (e.g. ICDs) to support integration #LMSpaceSystemsEng #SpaceSecurity #SpaceNSS Security Clearance Statement: This position requires a government security clearance, you must be a US Citizen for consideration. Clearance Level: TS/SCI ## Description At the dawn of a new space age, Lockheed Martin is a pioneer, partner, innovator, and builder. Our amazing people are on a mission to make a difference in the world and every single day we use our skills and experiences to create, design, and build solutions to some of the worlds' hardest engineering problems. Our culture encourages employees to dream big, perform with excellence, and create incredible products. We provide the resources, inspiration and focus and if you have the passion and courage to dream big, we want to build a better tomorrow with you. You will be responsible for developing system level artifacts and engaging with customers, mission partners, and other stakeholders to satisfy and fulfill customer directed objectives As a member of the Systems Engineering team you will: * Perform in an accelerated, collaborative, dynamic small team environment, closely integrated with customers and contractors * Ensure consistency of requirements and traceability back to customer objectives * Planning and generating test cases in support of program milestone testing events * Perform requirements verification to ensure the system is able to meet customer needs * Ensure consistency of feature acceptance criteria to meet customer objectives ## 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) - [42 x 2 Canvases Later: Two Years, Two Minds, Many Lessons](https://www.wearedevelopers.com/videos/1458-42-x-2-canvases-later-two-years-two-minds-many-lessons) - [From DevOps to Scaled DevOps: How We’re Rebuilding Continuous Delivery as a Platform](https://www.wearedevelopers.com/videos/100018-from-devops-to-scaled-devops-how-we-re-rebuilding-continuous-delivery-as-a-platform) - [A Founder's Journey : From Startup Chaos to Purposeful Growth](https://www.wearedevelopers.com/videos/1926-a-founder-s-journey-from-startup-chaos-to-purposeful-growth) - [Organizational Change Through The Power Of Why - DevSecOps Enablement](https://www.wearedevelopers.com/videos/478-organizational-change-through-the-power-of-why-devsecops-enablement) ## Related Articles - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers)