Lead Proposal Specialist

SupplyCore· 1033 - Supplier Relations
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🌍 Remote📍 Rockford, Illinois, United States📍 TELECOMMUTEFull time

About this role

About SupplyCore:

SupplyCore is a Certified Small Business federal contractor to the Department of Defense (DoD) and General Services Administration (GSA). We prioritize supporting our Military, allies, and Government customers worldwide. In partnership with our expansive supply chain, we provide products and services that enable our customers to complete their mission and sustain readiness anywhere.

To learn more visit here; One Company. One Mission. - SupplyCore Inc.

Job Summary:

The Lead Proposal Specialist is an experienced proposal professional responsible for independently managing the day-to-day execution of federal RFx responses. Reporting to the BD & Proposal Manager, this role owns proposal execution from start to finish, including developing and maintaining compliance matrices, drafting and editing proposal volumes, leading RFIs, Sources Sought, and Market Research responses, coordinating color team reviews, and maintaining the proposal content library. This position is focused on bidding and winning federal contracts and is not a sales role.

 

Key Deliverables and Responsibilities:

Independent Proposal Execution & Compliance 

  • Independently lead assigned proposal efforts across the Shipley lifecycle (Proposal Planning → Development → Review → Submission). 
  • Thoroughly review and interpret RFPs and related solicitation documents to identify requirements, evaluation criteria, deliverables, submission instructions, and deadlines; build and own the compliance/requirements matrix and maintain it through submission. 
  • Track updates and amendments to active solicitations, post updates, prepare and submit questions to the government during the Q&A/clarification period; monitor and incorporate government responses. 
  • Independently draft, write, edit, and own proposal content, ensuring persuasive, compliant, and customer-focused content align to solicitation requirements and the company style guide. 
  • Independently manage the RFI/ Sources Sought/ Market Research process end-to-end, coordinating with Subject Matter Experts (SMEs), and preparing and submitting written responses. 
  • Own final production and submission activities, ensuring all proposal volumes meet formatting, page-count, and submission requirements and are accurate, complete, and submission-ready. 

Reviews, Process & Continuous Improvement 

  • Schedule and coordinate color team reviews (Pink, Red, Gold) around team schedules, applying Shipley best practices and consolidating reviewer feedback into proposal drafts. 
  • Monitor SAM.gov, GovWin, and related portals to identify new solicitation opportunities
  • Participate in strategy discussions and pre-RFP business development efforts, ensuring win strategies and themes are effectively carried through into written content. 
  • Assist with post-submission debriefs and lessons learned, applying insights to strengthen future proposals. 

Content, Document Management & Team Support 

  • Own and maintain the proposal content library, including boilerplate, reusable content, past performance, resumes/templates, graphics, etc. and lead content-refresh initiatives with SMEs. 
  • Maintain SharePoint/Teams folder structures, file-naming standards, and document version control to ensure submission readiness. 
  • Coordinate with SMEs and stakeholders to gather inputs, maintain accountability to deadlines, and keep proposal efforts moving. 
  • Provide guidance, coaching, and mentorship to team members, and support proposal-related training and work instructions. 
  • Provide support to the RFQ and other transactional/one-off bid processes as needed, coordinating with suppliers to prepare and submit responses. 
  • 5+ years of proposal experience, with a strong understanding of government contracting and solicitation requirements; Federal or DoD experience preferred.
  • Bachelor's degree in English, Business, or related field preferred; relevant proposal or professional/technical writing experience may be accepted in lieu of a degree. May include military personnel formally trained or with relevant service experience in lieu of civilian experience.
  • Excellent verbal and written communication skills, including strong grammar, mechanics, and editing ability. Highly meticulous, reviewing and editing one's own work to ensure consistency and accuracy.
  • Self-driven and proactive; takes initiative to resolve challenges and organized to execute multiple projects at once while adhering to deadlines.
  • Proficient with Adobe products like Acrobat, In Design, and Illustrator (preferred)
  • Training in Shipley and/or APMP proposal management process (preferred)
  • Proficiency working with MS Office (SharePoint/Teams, Excel, Word, PowerPoint, Outlook)

What we offer: We care about our associates and strive to provide the most up to date benefits.

  • 3 weeks of PTO with a generous accrual policy
  • Wellness Program
  • 14 company paid annual Holidays.
  • Employee Assistance Program (EAP)
  • Flexible Work Life Balance
  • Nationwide Medical, Dental, Vision, & FSA
  • Casual Work Environment
  • Optional Additional Life Insurance
  • Progressive Associate Recognition Program
  • Short- & Long-Term Disability
  • Company Provided Professional development
  • Annual social and community events
  • Annual Education Assistance Program
  • Company provided PC and office supplies
  • 401K with bi-weekly Safe Harbor contributions
  • On-site Free Parking [Hybrid/ In-person]
  • 401K with bi-weekly Safe Harbor contributions

Pay: $70,000 - $100,000

Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status, age or any other federally protected class. 

Frequently Asked Questions

Is the salary disclosed for the Lead Proposal Specialist position at SupplyCore?
The salary for this Lead Proposal Specialist role at SupplyCore is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Is the Lead Proposal Specialist job at SupplyCore remote?
Yes, this Lead Proposal Specialist position at SupplyCore is remote, with team members based in Rockford, Illinois, United States, TELECOMMUTE. You can work from home or anywhere in the supported regions.
Is the Lead Proposal Specialist role at SupplyCore full-time or part-time?
This is listed as a Full time position. It is posted as a Lead Proposal Specialist role in the 1033 - Supplier Relations department at SupplyCore.
Which team or department does the Lead Proposal Specialist at SupplyCore belong to?
This Lead Proposal Specialist position is part of the 1033 - Supplier Relations department at SupplyCore. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Lead Proposal Specialist position at SupplyCore?
Click the "Apply Now" button on this page. You will be redirected to SupplyCore's official application portal hosted on workable where you can submit your application directly.
When was the Lead Proposal Specialist job at SupplyCore posted?
This Lead Proposal Specialist position at SupplyCore was posted on Aug 27, 2026. Apply as soon as possible — early applications are often reviewed first.
Lead Proposal Specialist
SupplyCore
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