Proposal Manager/Writer - Military veterans preferred

Req ID: 131

Job Title: Proposal Manager/Writer

Location: Mandex Corporate Fairfax, VA, US 22033

Organization Unity: CORP HQ

Date Opened: 7/29/2025

Job Type:

Full-time

Sales

Bachelor's Degree

0 - 10%

Proposal Manager/Writer

The salary range for the position is ($85K-90K) depending on the experience and qualifications.

MANDEX, Inc. is seeking a skilled and motivated Proposal Manager/Writer to lead and support the development of high-quality, compliant, and compelling federal proposals. The Proposal Manager/Writer will oversee the full lifecycle of the proposal process from opportunity analysis and kickoff through submission while also serving as the principal writer for proposal content.

This role collaborates with capture managers, subject matter experts (SMEs), and cross-functional teams to ensure all submissions are strategically aligned, technically accurate, and positioned to win.

Required qualifications to be successful in this role:

Proposal Management:

• Lead and manage the end-to-end proposal process (RFPs, RFQs, RFIs, Sources Sought).
• Facilitate proposal kickoff meetings, standups, and review sessions.
• Develop and maintain detailed proposal plans, including compliance matrices, schedules, and calendars.
• Coordinate internal teams and external partners to meet deadlines and deliverables.
• Track action items, ensure timely contributions, and manage risk throughout the process.
• Oversee final production, packaging, and submission of proposals by solicitation requirements.

Proposal Writing & Development:

• Serve as lead writer for technical and non-technical sections: executive summary, management approach, staffing, past performance, and personnel resumes.
• Interpret input from SMEs and translate technical concepts into clear, persuasive, and customer-focused language.
• Tailor existing content and boilerplate material for each opportunity.
• Maintain consistent tone, format, and branding across all proposal documents.

Quality Assurance & Compliance:

• Ensure strict compliance with solicitation instructions (Sections L & M), FAR/DFARS, and agency-specific guidelines.
• Review and edit documents for grammar, clarity, compliance, and persuasive impact.
• Coordinate development of proposal graphics, charts, and visual aids with design resources.

Content & Process Management:

• Maintain a well-organized proposal content library (past performance, resumes, templates).
• Contribute to the evolution of proposal development tools, templates, and best practices.
• Lead post-submission debrief reviews and lessons-learned sessions to improve the process continuously.

Required Qualifications:

• Bachelor’s degree in English, Communications, Business, Technical Writing, or a related field.
• 3+ years of experience managing and writing federal proposals.
• Demonstrated understanding of the federal acquisition process and proposal compliance.
• Strong writing, editing, and storytelling skills.
• Proficiency with Microsoft Office Suite (Word, PowerPoint, Excel, Teams) and Adobe Acrobat.
• Familiarity with portals like SAM.gov, GSA eBuy, PIEE, and tools like Deltek GovWin.

Preferred Qualifications:

• APMP Certification (Foundation level or higher).
• Experience supporting proposals in Cybersecurity, IT, Engineering, or Logistics sectors.
• Familiarity with basic graphic design tools (e.g., Adobe InDesign, Photoshop).
• Experience managing multiple concurrent proposals under tight deadlines.
• Excellent interpersonal, organizational, and time management skills.

What you can expect from us:

MANDEX, Inc has over 50 years of experience in all facets of information technology including systems engineering; systems testing; systems design and implementation; cybersecurity and information assurance; electronic and physical security; as well as logistics and warehousing.

MANDEX, Inc. is a collaborative, mission-driven organization where professional advancement, supportive leadership, and an inclusive culture are the core of everything we do! Come work with us!

Benefits we offer:

• Health insurance
• Vision insurance
• Dental insurance
• Paid time off
• Tuition reimbursement
• Employee assistance program
• Short-term disability
• Long-term disability
• Health savings account
• Flexible spending accounts
• Basic Life & Disability insurances
• Voluntary AD&D Insurance
• Voluntary Accident Insurance
• Voluntary Critical Illness Insurance
• 401(k) Retirement Plan (MANDEX, Inc offer pre-tax and post-tax Roth contributions, and match 100% of the first 6% elected contribution)

Additional Information

• Interview Round 1
• Interview Round 2
• Background Checks & Drug Screening
• Offer Letter
• Your NEXT big challenge begins

Security:

• Must be a U.S. Citizen.

MANDEX, Inc. is an Equal Employment Opportunity employer and does not discriminate on the basis of race, national origin, gender, sexual orientation, disability, veterans’ status, age, or other legally protected status.

MANDEX, Inc. reserves the right to perform background screening and drug testing prior to extending offers of employment.

MANDEX attracts and retains smart and motivated professionals in the government contracting industry. We offer competitive salaries and excellent benefits packages, including a matched 401(k) plan.

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