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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Systems Engineer Sr - Level 3 - **Company:** Lockheed Martin - **Location:** Marietta, GA, United States - **Experience:** Expert - **Salary:** $85,300.0 - $158,300.0 - **Contract:** Permanent contract - **Skills:** Agile Methodology, Systems Engineering, Linux System Administration, Requirements Management, Software Engineering, Software Requirements Analysis, Verification and Validation (Software), System Testing, Systems Integration, Digital Twin, SC Clearance, Devsecops - **Published:** August 28, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9124811/systems-engineer-sr-level-3 ## About the Role A systems engineer with technical experience in simulation, software development, and systems integration. You thrive in fast-paced environments, excel at stakeholder communication, and are driven to deliver high-impact solutions that advance pilot training and tactical development., MUST BE A U.S. CITIZEN - This position is located at a facility that requires special access. The selected candidate must possess an active Secret clearance to start. This position is in Marietta, GA Discover Marietta. Performs technical planning, system integration, verification and validation, cost and risk, and supportability and effectiveness analyses for total systems. Analyses are performed at all levels of total system product to include: concept, design, fabrication, test, installation, operation, maintenance and disposal. Ensures the logical and systematic conversion of customer or product requirements into total systems solutions that acknowledge technical, schedule, and cost constraints. Performs functional analysis, timeline analysis, detail trade studies, requirements allocation and interface definition studies to translate customer requirements into hardware and software specifications. For positions that perform IT responsibilities, use E646, Systems Engr-IT. Basic Qualifications * Bachelor's degree in an Engineering discipline. * Experience with Agile development process and tools * Experience in System Engineering practices in performing system requirements development, system design development, system integration and/or verification on complex systems * Knowledge of aircraft avionics Desired Skills * Experience in one or more of the following: avionics sensors, such as radar, electronic warfare, CNI, or IR subsystems * Experience in software development * Working knowledge in using the DOORS requirements management tool * Experience in development and execution of System Test Procedures ## Description You will be a Systems Engineer Senior, for the F-22 Air Combat Simulation (ACS) Man in the Loop (MITL) development team which is responsible for defining requirements of new features into the simulation, sustaining the product, and rehosting the Operational Flight Program for Linux environments. The ACS serves as the Digital Twin for the F22 aircraft and supports pilot training, tactics development, and DT/OT testing including DevSecOps support in the Raptor Virtual Development Lab (RVDL). What You Will Be Doing As the Systems Engineer for either the F-22 legacy or F-22 In A Box (F-22IAB) high fidelity combat simulation you will be responsible for defining requirements and guiding the architecture and MITL software development team. What's In It For You We are committed to supporting your work-life balance and overall well-being, offering flexible scheduling options. Learn more about Lockheed Martin's comprehensive benefits package here. Do you want to be part of a company culture that empowers employees to think big, lead with a growth mindset, and make the impossible a reality? We provide the resources and give you the flexibility to enable inspiration and focus - if you have the passion and courage to pursue ambitious goals, work hard, and enjoy what you do, we want to build a better tomorrow with you. ## Related Videos - [Crew Management System for Airlines: Plan duties for pilots & flight attendants worldwide](https://www.wearedevelopers.com/videos/1444-crew-management-system-for-airlines-plan-duties-for-pilots-flight-attendants-worldwide) - [DevSecOps: Injecting Security into Mobile CI/CD Pipelines](https://www.wearedevelopers.com/videos/273-devsecops-injecting-security-into-mobile-ci-cd-pipelines) - [AI in Regulated Industry - Validating AI-Enabled Products with PLM and Digital Twins](https://www.wearedevelopers.com/videos/2065-ai-in-regulated-industry-validating-ai-enabled-products-with-plm-and-digital-twins) - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [DevSecOps culture](https://www.wearedevelopers.com/videos/783-devsecops-culture) - [DevSecOps: Security in DevOps](https://www.wearedevelopers.com/videos/36-devsecops-security-in-devops) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [What is Software Engineering?](https://www.wearedevelopers.com/magazine/289-what-is-software-engineering) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs)