Diné Development Corporation (DDC) is seeking a Senior Proposal Manager to join our high-performing Growth Enablement team supporting our family of 10 subsidiaries across the federal contracting space. This role is designed for a leader who can drive the proposal development process while building and leading a high-performing team. The Senior Proposal Manager will operate within a corporate shared services model, managing multiple efforts, developing talent, and driving process improvement to scale operations.

This is an opportunity for someone who is ready to lead people, own delivery, and help shape the future of our proposal organization. We are looking for steady operators who take ownership, lead by example, and know how to build trust and accountability within a team.

• Lead end-to-end proposal development for Federal RFPs, RFIs, RFQs, and Direct Awards, ensuring timely and compliant submissions.
• Develop and manage proposal schedules, enforce deadlines, and coordinate cross-functional teams to deliver high-quality proposals.
• Create compliant proposal templates and outlines based on RFP Sections L & M.
• Collaborate with Capture, BD, Pricing, Recruiting, and Leadership to develop win strategies and key messaging.
• Write and edit proposal content, including management plans, staffing approaches, and past performance narratives.
• Maintain compliance matrices, proposal trackers, and review schedules.
• Develop junior proposal team members, providing feedback, coaching, and guidance.
• Contribute to the development of proposal best practices, templates, and tools.
• Drive operational improvements and support the continued growth and scalability of the proposal function.
• Champion DDC’s high-performance culture and operational standards.
• Other duties as assigned.

• Minimum of 8 years of federal proposal management experience, preferably within a shared services or multi-entity environment.
• Demonstrated experience leading teams or mentoring others in a proposal environment.
• In-depth knowledge of the federal procurement lifecycle, including FAR/DFARS and other relevant acquisition regulations.
• Exceptional writing, editing, and document management skills.
• Proficiency in Microsoft Office Suite, Adobe Acrobat, SharePoint, and proposal automation tools.
• Shipley, APMP, or equivalent proposal certification preferred.
• Bachelor’s degree in Business, Communications, English, or a related field preferred.

What We Value

• Leaders who build trust and foster team alignment.
• Strategic thinkers who take ownership and drive results.
• Professionals who create structure, lead by example, and raise the bar.
• Communicators who keep teams informed, focused, and collaborative.
• Operators who deliver with consistency, accountability, and integrity.

Diné Development Corporation (DDC) is a Navajo Nation owned family of companies that delivers IT, professional, and environmental solutions to advance the missions of federal, state, and tribal government agencies. As thought leaders and innovators, our team of specialists build client-centric solutions that solve critical challenges faced by defense, civilian, and healthcare organizations. Employing a mission-focused approach, we deliver value that not only enhances current operations, but also drives future change. Closely aligned with this approach is our commitment to advancing the Navajo Nation and its People. Through economic development and community empowerment, we elevate the Navajo Nation to provide lasting impact and sustainable growth for future generations. DDC’s ability to unite legacy-inspired technologies, industry best practices, and proven methodologies has contributed to our success for twenty years.

This contractor and subcontractor shall abide 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, sexual orientation, gender identity, national origin, or for inquiring about, discussing, or disclosing information about compensation, or any other basis prohibited by law. We participate in E-Verify.