Senior Space Proposal Lead - On-Site, TS/SCI

York Space Systems seeks an experienced Proposal Manager III to lead end‑to‑end proposals for U.S. Government space programs.

The role requires an active TS/SCI clearance and is on-site in Greenwood Village, CO, working with capture, BD, technical, contracts, supply chain, and pricing teams. The candidate will own the proposal lifecycle from planning through submission, leveraging Shipley/APMP processes and coordinating color team reviews.