Proposal Manager

General information

Requisition #

R69457

Locations

USA-VA-Herndon

Posting Date

07/22/2026

Security Clearance Required

None

Remote Type

Hybrid

Time Type

Full time

Description & Requirements

Elevate your career with MANTECH International Corporation! Join a dynamic team dedicated to national security through cutting-edge technology. Since 1968, MANTECH has led in delivering advanced solutions to government intelligence, the Department of Defense, and Federal Civilian sectors. Dive into innovation in Digital Transformation, Cybersecurity, IT, Data Analytics and Software Development. Your journey to impactful work and rapid growth starts now-be extraordinary at MANTECH!

MANTECH seeks a motivated, career and customer-oriented Proposal Manager to join our team in Herndon, VA. This is a hybrid position with onsite requirements for classified proposal management and collaboration at Herndon and surrounding facilities.

The Proposal Manager plays a pivotal role in driving MANTECH's growth across the Department of Defense (DoD), Federal Civilian agencies, and the Intelligence Community. This position demands close collaboration with business development, capture, and operations teams to lead the development of high-quality, compliant, and persuasive proposals that align with MANTECH's strategic goals and technical capabilities. The Proposal Manager is not only responsible for managing the mechanical and tactical proposal process but is expected to lead their teams in developing various configurations of strength-based proposals that are compelling to government customers.

Responsibilities include but are not limited to:

• Proactively and autonomously manage the full proposal lifecycle, including RFx analysis, outline and compliance matrix development, team coordination, content creation, reviews, and submission, ensuring adherence to schedules, quality standards, and MANTECH processes.

• Partner and collaborate with business development and capture executives, portfolio management personnel, subject matter experts, account leads, and corporate business support services to develop and generate response approaches, strategies, themes, and discriminators.

• Oversee the development and maintenance of proposal documentation using MANTECH tools and templates, coordinating with authors to ensure clear, concise, and compliant content aligned with win strategies and MANTECH solutions.

• Apply storyboarding and other techniques to develop compelling, high-quality proposal content that showcases MANTECH's expertise aligned with government needs.

• Lead and participate in proposal reviews to ensure quality, compliance, and responsiveness, incorporating MANTECH best practices and ensuring proposal submissions comply with applicable instructions.

• Demonstrate strong leadership by guiding and motivating team members, fostering a collaborative environment, and providing matrixed support to other proposal managers to share best practices and lessons learned.

• Contribute to continuous improvement of MANTECH's proposal process by identifying gaps, inefficiencies, and recommending enhancements while managing post-submission activities and debriefings.

Minimum Qualifications:

• Bachelor's Degree

• Prior military experience or 2+ years of proposal development experience in a government contracting environment in lieu of a degree.

• Proven ability to manage the full proposal lifecycle, from RFx analysis to submission in a federal procurement environment, ensuring adherence to schedules and quality standards.

• Experience analyzing federal government issued solicitations and translating complex requirements into persuasive and compliant proposal content, highlighting MANTECH's strengths and discriminators.

• Excellent writing, editing, organizational, and time-management skills to manage and contribute to clear, concise, and compelling proposals in a fast-paced environment.

• Proven ability to lead cross-functional teams and collaborate effectively with diverse stakeholders, including business development, capture managers, and technical experts.

• Proficient in MS Office Suite (Word, PowerPoint, Excel) and experience with document management and collaboration tools such as SharePoint, MS Teams, Google Workspace, Box, Zoom, and Slack.

• Experience with proposal management software such as Visible Thread, PerfectIT, and AI tools, with adaptability to changing priorities and process improvements.

Preferred Qualifications:

• Experience working for a large, federal systems integrator.

• Experience with cyber, data and AI analytics, mission enterprise and information technology proposals, including technical challenges and scorecard responses.

• Experience with various GWAC and IDIQ task order proposals.

• Experience with the Shipley Process, Shipley Certification(s), APMP best practices, or APMP Certification(s).

• A current/active Top Secret clearance with ability to obtain TS/SCI

Physical Requirements:

• Must be able to remain in a stationary position 50% of the time.

• Needs to occasionally move about inside the office to access file cabinets, office machinery, etc.

• Frequently communicates with co-workers, management, and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations.

The projected compensation range for this position is -. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. In addition, MANTECH invests in its employees beyond just compensation. MANTECH's benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.

MANTECH considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation.

If you need a reasonable accommodation to apply for a position with MANTECH, please email us at careers@mantech.com and provide your name and contact information.