Castelion
Proposal Manager
Torrance, CA +1 · Manager · Full-time · Posted Sep 14, 2026
- Location
- Torrance, CA
19951 Mariner Ave, Torance, CA 90503 - Experience
- 5+ years developing and writing proposals for Department of Defense and/or Intelligence Community customers.
About the job
Owns end-to-end development, quality control, production, and submission of proposals to Department of War customers, translating Castelion’s technical and programmatic capabilities into compliant, customer-focused responses.
What you'll do
- Lead proposal planning, strategy, compliance, writing, reviews, production, and on-time delivery.
- Coordinate cross-functional inputs and communicate technical, programmatic, manufacturing, and execution content clearly to customers.
- Improve proposal templates, workflows, reusable content, review standards, and lessons learned.
What they ask for
- 5+ years developing and writing proposals for Department of Defense and/or Intelligence Community customers.
- Demonstrated experience leading proposals from solicitation release through final submission.
- Excellent technical writing skills and ability to turn complex or incomplete material into clear, customer-focused content.
- Strong understanding of DoD/IC solicitations, proposal instructions, evaluation criteria, and government acquisition environments.
Model-written summary · the original posting is authoritative