Closeout Billing Specialist

Contract Closeout Billing Specialist

K  — Delivering Solutions, Changing the World. K  is a global leader in delivering technology-driven, mission-critical, and sustainable solutions that truly matter. For over a century, we have powered bold missions across defense, space, industry, and government through our two core business lines Mission Technology Solutions and Sustainable Technology Solutions. With nearly 38,000 talented people operating in more than 80 countries, we thrive on a culture built on safety, integrity, and teamwork.

At K , we empower our people to solve the world’s toughest challenges and create lasting value for communities and the planet. We don’t just deliver results, we deliver game‑changing solutions, innovative technology, deep domain expertise, and cutting‑edge technologies.

K  is seeking a Contract Closeout Billing Specialist to support final contract closeout activities for U.S. Government Services contracts in Huntsville, AL. Under general supervision, this role is responsible for preparing and reconciling final invoices, validating incurred costs against billed amounts, and ensuring billing accuracy and compliance with Federal Acquisition Regulation (FAR) requirements. The specialist will utilize Deltek Costpoint and Cognos to calculate final billings, submit invoices through customer payment systems such as PIEE/WAWF and IPP, and maintain detailed reporting and metrics to manage closeout backlogs.

This position supports cost reimbursable, time‑and‑materials (T&M), and firm fixed price (FFP) contracts while partnering with Finance, Contracts, Project Controls, and external customers to resolve discrepancies and drive timely contract closeouts.

• Support end‑to‑end contract closeout billing activities for U.S. Government Services contracts, including cost reimbursable, T&M, and FFP contract types.
• Reconcile contract financial data by comparing costs incurred vs. invoices submitted to ensure billing accuracy and compliance.
• Prepare and calculate final invoices, including rate variance and final closeout billings, utilizing Deltek Costpoint and Cognos reporting tools.
• Submit invoices and supporting documentation through government invoicing/payment systems such as PIEE/WAWF, IPP, and other customer‑specific portals.
• Develop, maintain, and enhance detailed closeout reporting, metrics, and trackers to support contract backlog management and monthly closeout targets.
• Analyze contract funding and payment history to confirm sufficiency for final billing and identify opportunities for de‑obligation where applicable.
• Coordinate with internal stakeholders (Contracts, Project Management, Project Controls, Accounting, and Subcontract teams) to resolve billing issues, clear discrepancies, and ensure closeout deliverables are complete.
• Communicate effectively with external customers to support invoice approval, resolve payment issues, and facilitate contract closeout timelines.
• Support continuous improvement efforts by identifying trends, gaps, and opportunities to improve closeout efficiency and billing accuracy.
• Work as part of a cross‑functional closeout team to meet established performance goals, deadlines, and monthly closeout metrics.
• Perform other duties and special projects as assigned.

• Bachelor’s Degree in Accounting, Finance, Business Administration, or a related field. Equivalent experience accepted in lieu of degree.
• 4+ years of contract closeout and government billing experience.
• Prior experience in a U.S. Government contracting environment with hands‑on billing exposure.
• Working knowledge of government contract billing requirements and FAR principles, including contract types and billing rules.
• Advanced proficiency in Microsoft Excel, including strong reconciliation and reporting capabilities.
• Proficiency in Microsoft Office Suite (Excel, Word, Outlook).
• Strong written and verbal communication skills with the ability to concisely document issues, actions, and outcomes.
• Demonstrated ability to manage multiple priorities, resolve discrepancies, and meet deadlines in a metrics‑driven environment.

• Experience utilizing…