Modern Technology Solutions Incorporated (MTSI) is seeking a mid-level R&D Scientist/Engineer specializing in fluid dynamics and space-based EO/IR systems. This role involves developing and simulating advanced aerospace and defense systems for Department of Defense (DoD) and Intelligence Community (IC) applications. The position requires an active Top Secret/Sensitive Compartmented Information (TS/SCI) security clearance and hands-on experience with EO/IR sensor data.