Working knowledge of FAR Part 12 (Acquisition of Commercial Products and Commercial Services), Part 15 (Contracting by Negotiation), FAR Part 16 (Types of Contracts, including task order competitions under FAR 16.505), FAR Subpart 8.4 (Federal Supply Schedules), and FAR Part 19 (Small Business Programs), and common contract types such as FFP, T&M, cost-reimbursement, IDIQs, GWACs, and BPAs. Apply a strong understanding of evaluation factors, subfactors, and source selection methods, e.g., under FAR Subpart 15.3, including best-value tradeoff and lowest price technically acceptable (LPTA), in order to ensure C5MI submissions are compelling, clearly differentiated, and written to earn strengths, not just comply.