Proposal Writer Part Time On Call

Your Impact Own your opportunity to be at the center of GDIT’s business operations. Make an impact by collaborating across functions to make mission success achievable. Job Description GDIT is currently seeking a Senior Proposal Solutions and Writer to join our team! This hybrid position can be remote and travel as required to Falls Church The Senior Proposal Solutions and Writer is a senior proposal writer responsible for shaping winning strategies, improving proposal quality at scale, strengthening proposal operations, and writing compelling, compliant proposals in response to complex, high\-value federal pursuits. This role operates above individual proposal execution—driving consistency, risk management, and measurable improvements in win performance across the proposal portfolio. The Senior Principal partners closely with Capture, Solution Architecture, Pricing, and Proposal Leadership to translate customer priorities into clear, compliant, and compelling proposals across the entire GDIT enterprise. This role also plays a key part in mentoring senior staff, refining proposal processes, and evolving how proposal organizations operate in increasingly complex and AI\-enabled environments. MEANINGFUL WORK AND PERSONAMEANINGFUL IMPACT * Serve as Volume Lead and/or Lead Writer for Technical and Management Volumes of proposals ranging in value from $25M to $1B\+ * Lead management proposal solutioning for large, complex, and/or high\-risk federal pursuits, translating capture strategy into executable proposal approaches * Write assigned proposal sections based on interviews, solutioning sessions, and industry best practices, that incorporate reviewer feedback and are tailored to the customer’s hot buttons and defined win themes/strengths * Partner with Capture and Solution teams to ensure proposals clearly articulate people, process, and tools * Shape win themes, discriminators, and proof points for management and technical volumes that align to customer mission priorities and evaluation criteria * Identify and mitigate proposal risk early, advising leadership on solution gaps, compliance exposure, and staffing impacts WHAT YOU'LL NEED TO SUCCEED * 10\+ years of experience in federal proposal development, including leadership roles on complex pursuits * Bachelor’s Degree in Technical Disciplines, Business Administration, English, Journalism, or a related technical or business discipline * Experience supporting large IDIQs, task\-order driven environments, or assisted acquisition models * Experience integrating AI\-enabled tools into proposal workflows while maintaining quality and compliance * Demonstrated success shaping and reviewing large, compliance\-driven proposals * Experience as a Volume Lead, Book Boss, or Lead Proposal Writer. * Deep understanding of proposal strategy, evaluation criteria, and competitive positioning * Strong command of technical and management proposal writing providing the ability to diagnose issues