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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Systems Engineer - **Company:** Mobius LLC - **Location:** Fort Belvoir, VA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Microsoft Word, Microsoft Excel, Data Analysis, Systems Engineering, Microsoft Office, Microsoft PowerPoint - **Published:** May 31, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=f667cefc9ed03923 ## About the Role Do you have experience in Technical engineering?, Do you have a Master's degree?, * Minimum of 12 years working on missile defense-related or other complex, large DoD/DoW or IC programs/projects * Knowledge of Missile Defense Systems (MDS) components, architectures, and concepts, with demonstrated understanding through analysis activities; MDS modeling and simulation experience is preferred * Proficient with Microsoft Office applications (i.e., Word, Excel, & PowerPoint) * Familiarity and experience with MDA and/or other complex MDS Elements * Experience with Analysis of Alternatives (AoA) processes or related activities where cost, performance, and/or risk trade-offs were made to support engineering decisions * Able to work independently on some tasks and lead teams to analyze and resolve problems on other tasks * Able to plan and execute projects involving prime contractors, other MDA offices, and FFRDC/UARC partners * Able to support the evaluation of future architecture elements and technology enablers that support ballistic, hypersonic and cruise missile defense * Ability to decompose complex problems into actionable elements * Ability to coordinate efforts in a timely manner across multiple organizations * Ability to present complex information and concepts to leaders at various levels * Ability to rapidly build, modify, or adapt M&S tools to answer novel questions, such as those relating to: + Guidance, Navigation, and Control (GNC) and interceptor modeling + Object tracking algorithm implementation or modeling + RF and EO/IR phenomenology, sensor design and performance modeling (e.g. Optical sensor link budget modeling) Education * Master's degree in a STEM-related field Clearance * Active Top Secret clearance with current SCI eligibility ## Description Come join our team! Mobius is seeking a Missile Defense System Senior Systems Engineer. In this role you will support the Missile Defense Agency's Architecture Concept Evaluation (MDA/CAC) office working to develop future Missile Defense architectures addressing ballistic and hypersonic missile threats to protect the homeland, regional Warfighters, and allies. As contract support, you will be supporting the development of missile defense concepts, analysis plans and tools, interpretation of analytical data, and interfacing with other government agencies to identify missile defense capability in their systems. These actions help MDA decision makers assess architecture alternatives and make investment decisions. This full-time salaried position is located on Fort Belvoir, VA., Duties of a Senior Systems Engineer may include: * Work internally with MDA's Chief Architect and other MDA offices, and interface and collaborate with other government agencies * Work and collaborate in cross-functional teams with the technical customers, senior technical staff, and senior leaders ## Related Videos - [Grappling With Clunky Old Software? 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