Demo

Senior Systems Engineer

Mobius
Fort Belvoir, VA Full Time
POSTED ON 6/2/2026
AVAILABLE BEFORE 8/2/2026

Mobius is an award winning, Small Business Administration (SBA) certified Historically Underutilized Business Zone (HUBZone) company and certified Woman-Owned Small Business (WOSB) providing engineering, analytical, and programmatic expertise to the Federal Government and commercial customers. Our mission is to provide innovative advanced technology solutions to customers facing issues of national and global significance. We strive to be admired for excellent people, fair and honest partnership, innovative problem solving, and exceptional performance.

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
  • Develop concepts, analysis plans, and top-level requirements for Missile Defense System (MDS) architecture alternatives.
  • Source new technical concepts from industry, academia, national labs, and other organizations to interpret their application to the missile defense mission.
  • 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.

Qualifications

  • 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


Mobius Benefits:
Mobius offers a stable work environment, a competitive salary, and a comprehensive benefits package, which includes medical, dental and vision plans, 401k Plan, Flexible Work Schedules, Tuition Reimbursement, Paid Leave and much more.

Mobius is committed to hiring and retaining a diverse workforce. We are proud to be an Equal Opportunity Employer/Affirmative Action Employer, making decisions without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected class.

Salary.com Estimation for Senior Systems Engineer in Fort Belvoir, VA
$114,666 to $134,428
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