Senior Procurement Specialist - Closeout Specialist

Senior Procurement Specialist - Closeout Specialist

Mission Support and Test Services, LLC (MSTS) manages and operates the Nevada National Security Site (NNSS) for the U.S. National Nuclear Security Administration (NNSA). Our mission is to ensure the security of the United States and its allies by providing high‑hazard experimentation and incident response capabilities through operations, engineering, education, field, and integration services and by acting as environmental stewards to the site’s Cold War legacy.

Location:

Losee Road facility, North Las Vegas, Nevada. Hybrid 4/10 schedule: two days on‑site, two days remote. Physical examination, drug screen, and valid driver’s license required.

• Establish a closeout procedure that encompasses all types of procurement actions.
• Reviews procurement files within the iCon repository to ensure completeness, accuracy, and compliance with all contractual terms, company policies, and applicable regulations.
• Ensures all aspects of a subcontract are completed and documented, including verifying that all obligations, deliverables, and compliance requirements are met before officially closing out a subcontract.
• Act as a liaison between the Procurement Specialist, the Subcontract Technical Representative, and the requesting organization.
• Initiates and completes all required contract closeout actions to ensure performance has been completed in accordance with MSTS policies and procedures.
• Ensures verification of file completeness including, but not limited to, preparing and processing final payment documentation, de‑obligating excess funds through formal modification if necessary, obtaining subcontractor releases.
• Ensures closeout audits are performed for cost reimbursement subcontracts.
• Ensures all procurement files are archived in accordance with established records retention policies and procedures.

Due to the nature of our work, US Citizenship is required for all positions.

• Bachelor's degree in a related field or equivalent training and experience with at least 5 years relevant, progressively responsible experience.
• Preferred:
  Bachelor's degree in business management or related field plus at least 5 years of relevant professional experience.
• Government procurement and subcontracting experience required.
• Department of Energy/National Nuclear Security Administration (DOE/NNSA) experience preferred.
• Demonstrated skill and experience in computerized procurement systems and proficiency with MS Office (Word, Excel, PowerPoint, and Access).
• Demonstrated skill to plan, organize, lead and monitor a wide variety of team efforts to their successful completion.
• Excellent oral and written communications skills to interface effectively with staff and management at all levels, including DOE/NNSA customers.
• Demonstrated skill to establish and maintain strong, effective customer relationships and to anticipate change and adjust promptly.
• Must possess a valid driver’s license.

Ability to obtain a HSPD‑12 Personal Identity Verification credential under the Department of Energy Order 206.2 and Supplemental Directive NNSA SD 206.2.

Annual salary range: $80,579.20 – $ per year. Starting salary determined by position market value, candidate education and experience, and internal equity.

MSTS is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, national origin, disability, veteran status, or other characteristics protected by law. MSTS is a background‑screening, drug‑free workplace.