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MBA Custodian

CNS

Job Location:

Oak Ridge, TN - USA

Monthly Salary: Not provided by the employer

Posted: 11 July 2026 (30+ days ago)

Application Deadline: 8 October 2026

Vacancies: 1 Vacancy

Job Summary

Location: Oak Ridge TN
Job Title: MBA Custodian
Career Level From: Senior Specialist
Career Level To:
Job Specialty: NMC&A

What Youll Do

Provide oversight and direction to ensure control and accountability of nuclear materials to include but not limited to: proper safeguarding and storage; process monitoring within the material balance area (MBA); transfer/receipt in and out of the MBA; determination of need for and proper application of tamper indicating devices; physical inventories including cleanup operation; recommendation of data access capabilities in DYMCAS; assessments/audits; procedures and plans including those for Operations; standing orders involving accountable nuclear materials in assigned MBA; and release of MBA to resume production activities upon completion of inventory activities and item reconciliation.

Provide technical leadership and direction to ensure control and accountability of nuclear materials to include but not limited to; identify evaluate and compile detailed technical information relating to the mission and processes of the MBA for accountable material; interface with the operations management of the facility when accountable nuclear materials are involved; troubleshoot and identify resolutions related to accountable nuclear materials; inventory difference investigations calculations and resolution; development of corrective actions for any identified deficiencies in assigned MBA; participate in tracking/trending of inventory differences; participate in management critiques of MBA-related issues involving accountable nuclear materials; recommend measurement and measurement control requirements; ensure measurement control goals are met in the MBA by reviewing measurement device performance; ensure only approved sampling and measurement methods are used and coordinate appropriate duplicate samples for analysis when needed; develop and/or maintain process flow charts to depict current operations and measurements.

Serve as the primary interface with operations; subject matter expert for accountable nuclear materials in the assigned MBA; interface with Industrial Hygiene Criticality Safety Rad Con issues related to accountable nuclear materials; liaison to communicate lessons learned; participate in investigations when assigned MBA is involved in an incident of security concern; participate in operation safety boards; pre-job briefings new or restart activities processing changes when related to accountable nuclear materials; NMC&A representative for the development of security requirements documents when required; and alternate MBA Custodian within Y-12; provide guidance/expertise in NMC&A material surveillance requirements; and provide oversight and technical advice for the implementation of material surveillance.

What You Can Expect

Meaningful work and unique opportunities to support missions vital to national and global security
Top-notch dedicated colleagues
Generous pay and benefits with a stable organization
Career advancement and professional development programs
Work-life balance fostered through flexible work options and wellness initiatives

Minimum Job Requirements

Bachelors degree: Minimum 7 years of relevant experience
OR Masters degree: Minimum 6 years of relevant experience
OR PhD: Minimum 3 years of relevant experience
OR Fifteen or more years of relevant education training and/or progressive experience may be considered to satisfy educational and years-of-experience requirements for this posting

Preferred Job Requirements

Y-12 operations/production supervisory experience is highly desirable
Experience/familiarity with Y-12 nuclear operations equipment DYMCAS handling/storage/processing of accountable nuclear materials nuclear criticality safety principles and TID Program is required
Knowledge and experience in data entry into SAP ME is required
Requires excellent verbal and written communication skills and ability to interface effectively with various clients (production and support organizations)
Requires ability to manage multiple tasks simultaneously

Why Y-12

You get #morethanajob. We encourage employees to achieve a healthy personal balance among home work and the community. One of the ways we embrace work-life balance is by offering flexible work arrangements that provide alternatives to the traditional workweek while still meeting business needs. Top talent and personal commitment mean more to our success than any other factors so we reward our people with the kinds of benefits that make a positive difference in the quality of their lives. Benefits such as: medical plan prescription drug plan vision plan dental plan employer matched 401(k) savings plan disability coverage education reimbursement and many more. Want to stay healthy and fit but hate the cost of a gym membership Take advantage of one of our onsite workout facilities and eat healthy in our onsite cafeterias. Much more than a workplace at Y-12 you can build a career that lasts a lifetime.

Notes

The minimum education and experience for the lowest career level in the job posting range are listed under Minimum Job Requirements. Successful candidates hired into a higher career level than the minimum in the range must meet the requirements listed in the job leveling charts for the career level into which they are being hired.

If a range of Career Levels is posted i.e. Senior Associate to Senior Specialist internal applicants already in one of the Career Levels would come across at their current Career Level. Internal applicants currently in a lower level Career Level would move to the lowest posted Career Level.

Requires a Q clearance; however all qualified candidates will be considered regardless of their current clearance status. The ability to obtain and maintain a Department of Energy Q clearance is required.

This position may require entry into the Material Access Areas (MAA) and participation in the Human Reliability Program (10 C.F.R. Part 712) which requires successful competition of a DOE counterintelligence evaluation and may include a counterintelligence-scope polygraph examination.

This position may be categorized as a designated position identified by 10 C.F.R. Part 709 requiring successful completion of a DOE counterintelligence evaluation that may include a counterintelligence-scope polygraph examination.

CNS is a drug-free workplace. Candidates accepting a job offer will be required to pass a pre-placement physical drug screening and background investigation. As an employee you may be required to receive and maintain a security clearance from the United States Department of Energy in order to meet eligibility requirements for access to sensitive information or matter. U.S. citizenship is a requirement for security clearance applicants. All employees are subject to being randomly selected for drug testing without advance notification.

CNS is an equal opportunity employer. All qualified applicants will receive consideration for employment based on merit and without regard to race color religion sex sexual orientation national origin protected veteran status or disability.

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