The Senior Technical Writer serves as the lead writer, editor and content developer for proposals, white papers and solicitations, translating complex technical and analytics concepts into clear capabilities and benefits statements and crafting persuasive narratives tailored to customer mission needs. They support the proposal manager in the coordination and consolidation of cross-functional inputs from technical, product, program, marketing and executive teams, ensuring consistent messaging, style and compliance across all submissions. The writer also develops technical summaries, past performance, compliance matrices and executive ready content and maintains disciplined processes around proposal schedules, submission status and compliance reviews. They identify process improvements to strengthen pipeline health and win rates, and support technical software or developer documentation, user guides, specifications, research papers or marketing content.