**Description** SAIC is seeking a to support the United States Air Force’s acquisition of the Sentinel (GBSD) ICBM program at Hill AFB. This program is one of the Air Force’s top modernization priorities, ensuring a safe, secure, and effective nuclear deterrent. The Modeling, Simulation, Analysis Engineer will develop and apply system-level models and simulations to analyze Sentinel system performance, conduct trade studies, and provide decision-quality data to program stakeholders. You will work closely with government and industry partners, supporting requirements analysis, mission effectiveness assessments, and digital engineering integration. Responsibilities include: + Building and maintaining models and simulations of Sentinel subsystems and mission scenarios. + Conducting performance, sensitivity, and AoA trade studies. + Supporting requirements decomposition and verification planning with MBSE tools (Cameo, DOORS, Teamcenter). + Preparing technical reports and decision briefings for Air Force leadership. **Qualifications** Bachelors in engineering, Math, Physics, or related STEM field 7+ years of experience (5+ years with a master’s degree) in modeling/simulation/analysis for aerospace or defense systems. Proficiency in tools such as MATLAB, Python, AFSIM, STK, or Simulink. Active DoD Secret clearance required. **Desired Skills/Experience** Master’s degree, ICBM/missile defense experience REQNUMBER: 2510259 SAIC is a premier technology integrator, solving our nation's most complex modernization and systems engineering challenges across the defense, space, federal civilian, and intelligence markets. Our robust portfolio of offerings includes high-end solutions in systems engineering and integration; enterprise IT, including cloud services; cyber; software; advanced analytics and simulation; and training. We are a team of 23,000 strong driven by mission, united purpose, and inspired by opportunity. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $6.5 billion. For more information, visit saic.com. For information on the benefits SAIC offers, see Working at SAIC. EOE AA M/F/Vet/Disability