Part Time Proposal Manager Jobs (NOW HIRING)

Greystones Group is a fast-growing woman-owned small business supporting our Nation?s Defense and Critical Infrastructure Agencies with best-in-class artificial intelligence and data analytics capabilities. Our capabilities include mission planning, operational support, cybersecurity, and information technology solutions.

We are looking for dedicated and motivated candidates who can grow with the company. At Greystones, we recognize that everyone brings unique talents and skill sets that contribute to a highly competent team delivering quality solutions. Our employees are never ?just a number?, we offer a close-knit, collaborative community that supports professional growth while providing world-class service to our customers.

Greystones is hiring for a Part-time, Proposal Manager to lead the development and delivery of compliant, compelling proposals across our federal and Department of War (DoW) pursuits. This role owns the end-to-end proposal lifecycle (from solicitation analysis and kickoff through outline development, content management, color-team reviews, production, and submission) for RFPs, RFIs, sources-sought notices, and task order responses. The ideal candidate is an experienced proposal professional who has managed responses to DoD solicitations, SeaPort (SeaPort-NxG) task order requests, and Commercial Solutions Opening (CSO) opportunities, and who can move quickly, manage multiple contributors, and produce high-quality submissions under tight deadlines. This is a flexible, project-based role well suited to a seasoned proposal manager who wants meaningful, mission-focused work without a full-time commitment.

This is a remote, part-time position within the Contracts department, reporting to the Director of Operations.

$65- 100/hr

Key Responsibilities

• Manage the full proposal lifecycle for federal and DoD opportunities (RFPs, RFIs, sources-sought, and task order requests) from solicitation review through submission.
• Analyze solicitations (Sections L and M, SOW/PWS, and evaluation criteria) and build compliant proposal outlines, compliance matrices, and response templates.
• Lead proposal kickoffs, establish and enforce proposal schedules, and coordinate writers, SMEs, capture leads, teaming partners, contracts, and pricing to keep pursuits on track.
• Plan and facilitate color-team reviews (Pink, Red, and Gold) and manage recovery and final revisions.
• Write, edit, and shape non-technical sections (executive summary, management approach, past performance, and resumes) and ensure a consistent, persuasive, and compliant narrative throughout.
• Manage SeaPort (SeaPort-NxG) task order responses in accordance with vehicle-specific instructions and portal submission requirements.
• Prepare and manage responses to Commercial Solutions Opening (CSO) solicitations, including solution brief/white paper and full proposal phases.
• Ensure final documents are fully compliant, professionally formatted, and submitted on time through required portals (e.g., SAM.gov, SeaPort, and agency-specific portals).
• Maintain and improve proposal artifacts, reusable content libraries, templates, and lessons learned.

Required Qualifications

• Demonstrated experience managing proposals in response to Department of War (DoW) RFPs.
• Hands-on experience managing SeaPort (SeaPort-NxG) task order proposals and submissions.
• Direct experience preparing and managing Commercial Solutions Opening (CSO) RFPs and CSO responses.
• Proven ability to lead the full proposal lifecycle and deliver compliant, on-time submissions, with the flexibility to support critical deadlines as needed.
• Strong command of solicitation analysis, compliance matrixes, and color-team review processes.
• Excellent writing, editing, and organizational skills, with strong attention to detail and document formatting.
• Ability to manage multiple contributors and competing deadlines with minimal supervision in a remote, part-time capacity.
• Proficiency with Microsoft Word, Excel, PowerPoint, and SharePoint (or equivalent collaboration tools).
• Bachelor's degree; relevant experience may be considered in lieu of a degree.
• U.S. person status; ability to obtain and maintain a security clearance may be required depending on the pursuit.

Preferred Qualifications:

• APMP certification (Foundation, Practitioner, or Professional) and/or Shipley proposal process training.
• Experience with additional federal/DoW contract vehicles and pathways (e.g., GSA MAS, IDIQs, OTAs, SBIR/STTR).
• Familiarity with AI, big data analytics, or IT/technical services proposals.
• Experience with proposal management and collaboration tools (e.g., SharePoint, Privia, or similar).
• Prior proposal support to other small business federal contractors.

Greystones Group is an Equal Opportunity Employer and abides by the requirements of 41 CFR §§ 60-1.4(a), 60-300.5(a), and 60-741.5(a). These regulations prohibit discrimination against qualified individuals based on their status as protected veterans or individuals with disabilities and prohibit discrimination against all individuals based on their race, color, religion, sex, national origin, genetic information, gender identity, or sexual orientation.

If you are a qualified individual with a disability or a disabled veteran, you have the right to request a reasonable accommodation if you are unable or limited in your ability to use or access Greystones career website due to your disability. You may request reasonable accommodations by contacting our Human Resources Department at 202-644-8998 option #2 or hr@greystonesgroup.com if you need assistance completing any forms or otherwise participate in the application process.