Job Description Summary:  ASI is seeking a Space Subject Matter Expert (SME) with broad knowledge of space capabilities, including orbital warfare (OW), Overhead Persistent Infrared (OPIR), Global Positioning System (GPS), space electronic attack/protection, Satellite Communications (SATCOM), space domain awareness, and National Technical Means (NTM). This role supports joint planning efforts and ensures effective integration of space capabilities into modeling and simulation (M&S) exercises.  An active TS/SCI clearance (eligibility required) is mandatory. Prior SAP/SAR experience is highly preferred.    Position Responsibilities:  * Collaborate with military space planners, joint planners, and M&S engineers to design and refine realistic experiments.  * Assist planners in developing experiment objectives aligned with military learning requirements.  * Partner with M&S teams to ensure simulations accurately reflect space capabilities and achieve desired outcomes.  * Provide subject matter expertise across orbital warfare, OPIR, GPS, SATCOM, space electronic attack/protection, space domain awareness, and NTM.  * Prepare and deliver reports, technical assessments, and briefings for senior decision-makers.    Basic Qualifications (Desired Skills/Experience):  * Active TS/SCI clearance (eligibility required).  * Prior SAP/SAR experience strongly preferred.  * Demonstrated knowledge of space capabilities (OW, OPIR, GPS, SATCOM, space electronic attack/protection, space domain awareness, NTM).  * Experience working with military and joint planning staffs.  * Familiarity with modeling and simulation (M&S) and its application to operational experimentation.  * Strong analytical, problem-solving, written, and verbal communication skills.  * Ability to work effectively in a team-oriented, collaborative environment.     Why Join ASI?  At ASI, you’ll be part of a mission-driven team that directly contributes to advancing U.S. national security and space defense. We foster a collaborative environment where your expertise is valued, your input shapes critical planning efforts, and your work has a direct impact on operational outcomes.  Come join a team committed to innovation, professionalism, and supporting the warfighter.    Application Process:  Interested candidates should submit their resume highlighting relevant experience and qualifications as a Space SME. We look forward to reviewing your application.