Mid–Senior Proposal Manager, Hybrid-eligible (GT25121613)
Gtscts, Chantilly, Virginia, United States, 22021
Mid–Senior Proposal Manager, Hybrid-eligible (GT25121613)
Chantilly, United States | Posted on 02/14/2026
GTSC is a fast-growing federal IT services contractor supporting civilian and DoD customers across IT modernization, cybersecurity, data, systems engineering, and mission support. We are investing deliberately in our growth organization to improve proposal quality, execution rhythm, and win consistency across complex, high-value pursuits.
Location
: Chantilly, Virginia, Hybrid-eligible
GTSC is seeking a
Mid–Senior Proposal Manager
to lead large, complex federal proposals in the
$35M–$50M range across
a mixed civilian and defense portfolio. This role owns proposal execution end-to-end and plays a key role in improving proposal discipline, predictability, and quality as GTSC scales.
You will work closely with Capture Managers, technical leaders, partners, and executives to deliver compliant, compelling proposals‑while helping standardize and continuously improve GTSC's proposal processes.
Key Responsibilities
Lead and manage multiple federal proposal efforts from kickoff through submission
Develop proposal schedules, outlines, compliance matrices, and writing assignments
Drive proposal cadence, daily standups, and internal reviews
Ensure full compliance with RFP requirements and evaluation criteria
Coordinate writers, SMEs, partners, and subcontractors across the proposal lifecycle
Author or refine proposal sections (e.g., management approach, executive summaries) as needed
Leverage AI/LLM tools to improve drafting efficiency, content quality, and compliance checks
Improve proposal rhythm, reduce fire drills, and raise overall submission quality
Capture lessons learned and contribute to reusable proposal content and standards
What Success Looks Like in the First 12 Months
Successfully leads multiple major proposals through submission
Improves proposal execution rhythm and predictability
Raises quality, compliance, and evaluator readability
Reduces last‑minute churn and unmanaged risk
Becomes a trusted execution partner to Capture and Growth leadership
Required Qualifications
Bachelor's degree or equivalent experience
5+ years of federal proposal management or closely related experience
Experience leading large, complex proposals ($35M+)
Strong understanding of federal RFP structures and compliance
Ability to manage cross‑functional teams under deadline
Proficiency with Microsoft 365 and collaborative proposal environments
Comfort using AI/LLM tools to support proposal development
Preferred Qualifications
Experience supporting both FedCiv and DoD customers
Familiarity with Shipley or similar proposal methodologies
Experience with IDIQs, GWACs, and task‑order‑based proposals
GTSC is proud to be an equal‑opportunity employer, committed to recruiting, hiring, and promoting qualified people of all backgrounds, regardless of sex; race; color; creed; national origin; religion; age; marital status; pregnancy; physical, mental or sensory disability; sexual orientation; gender identity or any other basis protected by federal, state or local law. Learn more about your EEO rights as an applicant.
GTSC is committed to working with and providing reasonable accommodation to applicants with physical and mental disabilities. If you have a disability and require assistance with our online application process, please tell us how we can help by contacting us at recruiting@thebowengroup.com
Note: This accessibility is intended for individuals requiring accommodations and should not be used to check on the status of your application. Inquiries not specific to requesting accommodation will be discarded.
GTSC‑Talent Solutions is an Equal Opportunity Employer and does not discriminate on the basis of race or ethnicity, religion, sex, national origin, age, veteran disability or genetic information or any other reason prohibited by law in employment.
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GTSC is a fast-growing federal IT services contractor supporting civilian and DoD customers across IT modernization, cybersecurity, data, systems engineering, and mission support. We are investing deliberately in our growth organization to improve proposal quality, execution rhythm, and win consistency across complex, high-value pursuits.
Location
: Chantilly, Virginia, Hybrid-eligible
GTSC is seeking a
Mid–Senior Proposal Manager
to lead large, complex federal proposals in the
$35M–$50M range across
a mixed civilian and defense portfolio. This role owns proposal execution end-to-end and plays a key role in improving proposal discipline, predictability, and quality as GTSC scales.
You will work closely with Capture Managers, technical leaders, partners, and executives to deliver compliant, compelling proposals‑while helping standardize and continuously improve GTSC's proposal processes.
Key Responsibilities
Lead and manage multiple federal proposal efforts from kickoff through submission
Develop proposal schedules, outlines, compliance matrices, and writing assignments
Drive proposal cadence, daily standups, and internal reviews
Ensure full compliance with RFP requirements and evaluation criteria
Coordinate writers, SMEs, partners, and subcontractors across the proposal lifecycle
Author or refine proposal sections (e.g., management approach, executive summaries) as needed
Leverage AI/LLM tools to improve drafting efficiency, content quality, and compliance checks
Improve proposal rhythm, reduce fire drills, and raise overall submission quality
Capture lessons learned and contribute to reusable proposal content and standards
What Success Looks Like in the First 12 Months
Successfully leads multiple major proposals through submission
Improves proposal execution rhythm and predictability
Raises quality, compliance, and evaluator readability
Reduces last‑minute churn and unmanaged risk
Becomes a trusted execution partner to Capture and Growth leadership
Required Qualifications
Bachelor's degree or equivalent experience
5+ years of federal proposal management or closely related experience
Experience leading large, complex proposals ($35M+)
Strong understanding of federal RFP structures and compliance
Ability to manage cross‑functional teams under deadline
Proficiency with Microsoft 365 and collaborative proposal environments
Comfort using AI/LLM tools to support proposal development
Preferred Qualifications
Experience supporting both FedCiv and DoD customers
Familiarity with Shipley or similar proposal methodologies
Experience with IDIQs, GWACs, and task‑order‑based proposals
GTSC is proud to be an equal‑opportunity employer, committed to recruiting, hiring, and promoting qualified people of all backgrounds, regardless of sex; race; color; creed; national origin; religion; age; marital status; pregnancy; physical, mental or sensory disability; sexual orientation; gender identity or any other basis protected by federal, state or local law. Learn more about your EEO rights as an applicant.
GTSC is committed to working with and providing reasonable accommodation to applicants with physical and mental disabilities. If you have a disability and require assistance with our online application process, please tell us how we can help by contacting us at recruiting@thebowengroup.com
Note: This accessibility is intended for individuals requiring accommodations and should not be used to check on the status of your application. Inquiries not specific to requesting accommodation will be discarded.
GTSC‑Talent Solutions is an Equal Opportunity Employer and does not discriminate on the basis of race or ethnicity, religion, sex, national origin, age, veteran disability or genetic information or any other reason prohibited by law in employment.
#J-18808-Ljbffr