Job Title: Cost Estimator REQUIRED; ACTIVE TOP SECRET Responsibilities Assist with the development and refinement of Government Cost estimation models. Develop, maintain, and update credible, defensible, and replicable cost estimates (including Life-Cycle Cost Estimates, Independent Government Cost Estimates, Cost/Budget Excursions, ROMs, Program Contractor Cost Estimate, in support of annual Program Objective Memorandum (POM) submissions) for the Government Customers in any phase of the acquisi