Subcontract Administrator III

Amentum • Jacksonville, FL, United States • Posted June 13, 2026

Location Jacksonville, FL
Job Type Full-time
Category other-general
Posted June 13, 2026
**Amentum, a global leader in critical mission support, engineering, technology, and national security solutions, is seeking a Subcontract Administrator III** **to support a government contract based in Kings Bay, Georgia.** The KBOS contract operates 24/7/365, with standard hours Monday–Friday, 0700–1600. Onsite with potential opportunity to work hybrid.

**Purpose and Scope**

Responsible for all phases of subcontract administration, cradle to grave, to include acquisition planning, source selection, cost/price analysis, negotiation, post-award administration and closeout. Responsible for ensuring compliance with government and Amentum policies and procedures. This is a mid/senior level position that will be expected to possess a solid understanding of government subcontracting, work independently with minimal instruction, be solution-oriented, contribute meaningfully to team and/or organizational goals, demonstrate excellent judgement and business acumen, collabor...

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