Senior Proposal Coordinator

Sabel Systems; Beavercreek (OH); On-site; USD 70,000 - 105,000; Full time

Job summary

Sabel Systems in Beavercreek, OH is seeking a detail-oriented Proposal Coordinator to manage the full lifecycle of proposals from kickoff to submission. The role emphasizes accuracy, timeliness, and clear communications across multiple teams.

You will coordinate activities, support writing and editing, maintain libraries of content and resumes, run compliance checks, track deadlines in GovWin, NextStage and SAM.gov, and help produce high-quality proposals that reflect our corporate voice and

Qualifications

• Experience coordinating proposal activities and schedules.
• Ability to write, edit and format proposal content.
• Strong organizational and document management skills.
• Familiarity with compliance checks and content development processes.

Responsibilities

• Coordinate a variety of proposal activities across the lifecycle from kickoff through submission.
• Independently manage small proposals or Task Orders with compliance and timely delivery.
• Support larger proposals with scheduling, content development coordination, and document management.
• Track opportunities in NextStage, GovWin, SAM.gov, flag upcoming solicitations and key dates.

Skills

Proposal writing

Project coordination

Document management

Editing

Communication

Tools

NextStage

GovWin

SAM.gov

Job description

Why Sabel Systems Sabel Systems designs and delivers digital engineering ecosystems for DoD programs, enabling teams to connect data, systems, and personnel within secure, scalable environments. Our solutions empower programs to make faster decisions, close sustainment gaps, and meet the digital acquisition requirements.

Why Sabel Systems Sabel Systems designs and delivers digital engineering ecosystems for DoD programs, enabling teams to connect data, systems, and personnel within secure, scalable environments. Our solutions empower programs to make faster decisions, close sustainment gaps, and meet the digital acquisition requirements. There’s no vendor lock, no proprietary baselines, and no need for ATO rebuilds during transitions. Sabel Systems is redefining modern defense acquisition. If you seek to solve complex challenges at scale and want your work to directly accelerate military capability while reshaping the DoD’s approach to digital engineering, this is the place for you. Complexity Simplified. Mission Amplified.

What You’ll Do

• Coordinate a variety of proposal activities across the entire lifecycle, from kickoff through submission.
• Independently manage small proposals or Task Orders, ensuring compliance, accuracy, and timely delivery.
• Support larger, more complex proposals with scheduling, content development coordination, compliance checks, and document management.
• Track and monitor opportunities in NextStage, GovWin, SAM.gov, and other business development platforms, flagging upcoming solicitations and key dates for the Proposal and Capture teams.
• Serve as a flexible, multi-disciplinary contributor able to assist with writing, editing, desktop publishing, compliance matrices, outline development, and final production.
• Support formatting, compilation, and quality checks across multiple volumes in coordination with other departments such as Pricing and Contracts.
• Maintain proposal libraries, templates, resumes, past performance artifacts, and other reusable content.
• Work closely with Capture Managers, Proposal Managers, SMEs, and other internal stakeholders to ensure proposal requirements are met.
• Contribute to process documentation, templates, and lessons-learned as directed by the assigned Proposal Manager.
• Track deadlines, action items, and status updates to keep proposal efforts on schedule.
• Format and edit proposal documents to meet customer guidelines and internal quality standards.
• Support color team reviews, integrate feedback, and prepare final proposal deliverables.
• Help ensure proposals are compliant with solicitation requirements and reflect a consistent corporate voice and messaging.
• Contribute to continuous improvement efforts within the Proposal Team.