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# Senior Systems Engineer

- **Company:** Mobius LLC
- **Location:** Fort Belvoir, VA, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Data Analysis, Systems Engineering
- **Published:** September 17, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9170130/senior-systems-engineer

## About the Role

* 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

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. Work is 100% onsite in a customer-facing TS/SCI facility.

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
 * Work 100% onsite in a customer-facing TS/SCI facility.
 * Develop concepts, analysis plans, and top-level requirements for Missile Defense System (MDS) architecture alternatives.
 * Produce and present technical and executive-level briefings, whitepapers, and reports to communicate concepts and value assessments to stakeholders.
 * Review technical concept documents for consistency with approved baselines and system architectures and contribute to the development of program plans and strategies.