Proposal Manager III

Senior Proposal Manager (Proposal Manager III)

Chantilly, VA

Seneca Holdings is seeking a highly experienced Senior Proposal Manager to lead the development and delivery of complex federal government proposals supporting both Department of Defense (DoD) and Federal Civilian agencies.

This role is responsible for managing multiple high-value competitive proposal efforts simultaneously, leading cross-functional proposal teams through the full proposal lifecycle, and ensuring the delivery of fully compliant, compelling, and strategically aligned proposals that position the company for contract awards. The Senior Proposal Manager plays a critical leadership role in translating capture strategies into winning proposals and coordinating technical, management, pricing, and executive stakeholders across the organization.

This position requires deep expertise in federal competitive procurements, Shipley-based proposal management practices, and oral presentation preparation for technical evaluations and challenges. This position also requires a high-level of organization, process adoption, and adaptability due to the complexity of the organization and varied lines of business.

Responsibilities include, but are not limited to:

• Lead the full lifecycle of complex federal competitive proposals from pre-RFP planning through submission and post-submission activities.
• Manage multiple concurrent proposal efforts ranging from $10M to $500M+, ensuring strict adherence to proposal schedules, compliance requirements, and quality standards.
• Develop proposals for GWACs, IDIQs, BPAs, and large multi-award contract vehicles.
• Translate capture strategies, win themes, customer hot buttons, and discriminators into compelling proposal structures aligned with Section L and Section M evaluation criteria.
• Develop and manage detailed proposal schedules, compliance matrices, annotated outlines, and proposal management plans.

• Direct and coordinate cross-functional proposal teams including writers, BD leads, capture managers, technical subject matter experts, contracts, pricing teams, subcontractors, and executive leadership.
• Facilitate proposal kickoff meetings, strategy sessions, storyboarding workshops, and daily proposal progress meetings.
• Drive accountability across the proposal team to ensure timely delivery of high-quality, compliant content.
• Facilitate pre-proposal preparation activities for all assigned competitive and recompete opportunities.

• Ensure proposals are fully compliant, compelling, and responsive to solicitation requirements while clearly communicating the company's strengths and differentiators.
• Oversee development and integration of technical, management, staffing, and past performance volumes.
• Conduct detailed reviews of proposal drafts to ensure clarity, accuracy, consistency, and alignment with evaluation criteria and make actionable recommendations to SMEs and writers on how to improve or strengthen the content.

• Lead structured proposal reviews including Pink Team, Red Team, Gold Team, and RFI Reviews in accordance with industry best practices.
• Facilitate incorporation of review feedback and ensure continuous improvement throughout the proposal lifecycle.

• Lead preparation for oral proposal presentations and technical challenges, including:
• Development of presentation storylines and slide content
• Coordination of visual storytelling and graphics development
• Speaker coaching and rehearsal facilitation
• Conducting timed rehearsals and mock evaluation panels

• Partner closely with capture managers and business development leadership to ensure alignment between capture strategy and proposal execution for competitive bids.
• Support opportunity qualification and proposal readiness activities during the capture phase.
• Assist with review of RFPs, RFIs, and draft solicitations to inform capture and proposal strategies.

• Ensure adherence to company proposal processes, branding, and best practices.
• Contribute to the development and maintenance of corporate proposal libraries, reusable content, and knowledge management resources.
• Participate in lessons learned (after action review) sessions. Recommend and assist in implementing improvements to…