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Senior Systems Architecture Engineer (ENG III) with Security Clearance

Mount Indie, LLCFort Belvoir, VA🇺🇸United StatesPosted Oct 23, 2026

Quick overview

SeniorityMid Senior
Work modeOn Site
LocationFort Belvoir, VA, United States
PostedYesterday

Job description

Join our Fort Belvoir team analyzing future missile defense architectures and concepts for a government missile defense program. You will lead or support architecture analysis, from analysis plans and simulation runs to the briefs and reports that shape future missile defense.

What You Will Do • Measure today's and tomorrow's threats against missile defense capability, find the gaps, and design architecture options that close them or raise performance • Build analysis plans, run missile defense simulation tools, post-process and assess results, and prepare architecture briefs and reports • Tailor modeling and simulation (M&S) tools to each analysis plan Required Qualifications • 7+ years on missile defense or other large, complex DoD programs • Solid understanding of the current missile defense architecture and future concepts • Experience modeling, assessing and evaluating future missile defense architectures • Strong at interpreting results and presenting findings clearly • Excellent written and verbal communication and strong collaboration • Strong time management and prioritization • Bachelor's degree in a STEM field • Active Secret clearance with the ability to obtain TS/SCI • Onsite in Fort Belvoir, VA Preferred Qualifications • Active TS/SCI clearance • AFSIM or similar missile defense simulation tools and frameworks • Integrated air and missile defense (IAMD) or cruise missile defense systems • Space systems • Defining and applying advanced concepts and algorithms for M&S of missile defense architectures • Systems engineering support to architecture design

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