Sr Proposal Writer

Seneca Holdings•Chantilly, VA

About The Position

Our team of talented individuals is what makes us successful. To support our team, we provide a balanced mix of benefits and programs. Your total rewards package includes competitive pay, benefits, and perks, flexible work-life balance, professional development opportunities, and performance and recognition programs. We offer a comprehensive benefits package that includes medical, dental, vision, life, and disability, voluntary benefit programs (critical illness, hospital, and accident), health savings and flexible spending accounts, and retirement 401K plan. One of our fundamental principles is to offer competitive health and welfare benefits to our team members, providing coverage and care for you and your family. Full-time employees working at least 30 hours a week on a regular basis are eligible to participate in our benefits and paid leave programs. We pride ourselves on our collaborative work environment and culture, which embraces our mission of providing financial and non-financial benefits back to the members of the Seneca Nation. Seneca Holdings is seeking a Proposal Writer III (Federal Health) with experience developing high-quality, compliant, and persuasive proposals for Federal Health agencies. The ideal candidate is a strategic writer who can translate complex health IT, clinical, and enterprise IT solutions into clear, evaluator-focused narratives that directly address federal acquisition requirements. Successful candidates demonstrate: Proven senior-level federal proposal writing experience, with a strong concentration in Federal Health, Civilian Health, or Defense Health environments. Hands-on experience supporting Federal Health agencies (e.g., HHS, DHA, VA, NIH, CDC, IHS) Familiarity with health IT and mission support environments, including clinical or healthcare IT systems. An understanding of how health mission requirements influence solution design, compliance, and evaluator expectations. A consistent record of contributing to competitive, compliant, and high-scoring Requests for Proposal (RFPs). The ability to thrive in a fast-paced, deadline-driven proposal environment with multiple concurrent efforts. The ability to operate as both a lead writer and volume lead, shaping technical approaches while maintaining alignment with capture strategy and win themes.

Requirements

Bachelor's degree, preferably in English, Journalism, Communications, Engineering, Business, or a related field.
7+ years of related Federal proposal writing experience in a government contracting environment.
Strong technical understanding of IT services offerings and capabilities, such as Cloud, DevSecOps, Software Development, Network/Systems Engineering and Artificial Intelligence (AI) / Machine Learning (ML) technologies.
Experience developing or refining IT solutions and supporting technical teams in focusing and articulating a technical approach.
Experience with business development, including drafting proposals, technical responses, and supporting materials for federal contracts
Ability to apply knowledge of federal acquisition and proposal best practices, including compliance, responsiveness, and evaluator scoring logic (i.e., Shipley, Lohfeld).
Ability and experience in analyzing/interpreting RFP requirements for the development of compelling, compliant, and solution-based technical responses.
Advanced skills and proficiency in Microsoft Word.
Intermediate skills and proficiency in Microsoft PowerPoint and Excel.
Strong presentation, verbal communication, written skills and the ability to articulate complex concepts to cross functional audiences.
Strong organizational skills along with the ability to multi-task and prioritize well in a fast paced, dynamic work environment.
Ability to take initiative and work independently, as well as work closely with partners in a collaborative environment.
Meticulous attention to detail.
Demonstrated ability to prioritize, organize, and exercise independent judgment.
Demonstrated problem solving and decision-making abilities.

Nice To Haves

Shipley or Lohfeld training preferred, but not required.

Responsibilities

Significantly shape proposal sections by writing clear, persuasive, and articulate technical, management, and staffing approaches; integrating Subject Matter Expert (SME) input into a cohesive, single-voice narrative; and writing within strict page, formatting, and evaluation constraints.
Work closely with the BD Operations Solutions Architects, SMEs, capture managers, and proposal leadership to refine strategy and messaging.
Gather and validate technical subject matter content by interviewing engineers, SMEs, stakeholders and other technical experts.
Conceptualize graphics, diagrams and illustrations to communicate complex technical solutions and improve target audience comprehension and engagement.
Edit for consistency, clarity, grammar, and syntax, and compile with client requirements.
Assess proposal and technical documentation content (compliance and quality as represented in proposal structure, narrative response, and graphics) and provide direction to proposal writers and solution SMEs.
Mentor authors or SMEs in improving written materials and documents focusing on consistency, clarity, and succinctness as well as sentence structure, grammar, spelling, and punctuation.
Ensure documents are accurate, complete, and adhere to standards for quality, graphics, coverage, format, and style to comply with corporate and government solicitation requirements.
Manage updates, version control, and revisions of documentation on a collaborative content management system.
Ability to organize, manage, and collaborate with other authors and various levels of internal staff and team members.
Perform quality work within deadlines with or without direct supervision.
Drafts stock language and content for proposals in coordination with SMEs.
Provides editing and desktop publishing support before proposal submission, as needed.
Research, organize, write, and edit sections for Requests for Information (RFIs) and White Papers.
Other duties as assigned.