General Overview APEX TK is looking for an amazingly talented Senior Systems Engineer to join our team! In this role you will get to lead or participate in analysis of future Missile Defense System (MDS) architectures and concepts, and modeling and simulation (M&S) tool development to support architecture assessment. What You'll Be Doing: • Assess missile defense system capability gaps, challenges, needs, and opportunities against current and future threats to develop potential architecture solutions that mitigate gaps and/or improve performance • Assist in the development of analysis plans, execute MDS simulation tools, post-process and assess analysis results, and prepare architecture analysis briefs/reports • Support modeling & simulation (M&S) efforts related to the above to tailor tools to specific analysis plans What Required Skills You'll Bring: • Active Secret clearance • Ability to obtain a TS/SCI • Bachelor's Degree in a STEM (Science, Technology, Engineering, Mathematics) or related field, or equivalent work experience that meets guidelines established for job and 8+ years of related professional experience • Master's Degree or equivalent, may be preferred at this level • Solid understanding of the current MDS architecture and future concepts • Experience in modeling, assessment, and evaluation of future missile defense architectures • Strong skill in interpreting results and presenting findings clearly • Excellent ability to communicate effectively, both verbally and in writing, as well as collaboration with others to achieve objectives • Strong time management skills and the ability to assess tasks based on their importance and urgency What Desired Skills You'll Bring: • Master’s Degree with 12+ years of experience in missile defense-related or other complex, large DoD program/project or a Bachelor's Degree with 20+ years experience • Active TS/SCI Clearance • Experience with AFSIM or similar MDS simulation tools/frameworks • Background in IAMD/Cruise Missile Defense systems • Background or experience with space systems • Experience with the definition and use of advanced concepts and algorithms for the M&S of MDS architectures • Experience supporting systems engineering-related architecture design activities