Practical knowledge of relevant engineering disciplines for EO/IR systems; Systems Engineering, detection and tracking algorithms, Electrical Engineering (power systems, digital systems, firmware, radiation-tolerant components), Mechanical Engineering (structures, thermal management, dynamics), Optical Engineering, Software Engineering (Structured Analysis, Object-Oriented coding, AI-based coding), Reliability, etc. Supporting new business activities, leading technical responses to requests for information (RFIs), requests for proposal (RFPs), and impact assessments for scope change including Engineering Change Proposals (ECPs).