Full-Time

Nuclear Material Accountability Engineer

Standard Nuclear

Standard Nuclear

51-200 employees

Toll-manufacturer of TRISO fuel for reactors

No salary listed

No H1B Sponsorship

Oak Ridge, TN, USA

In Person

Work is based in Tennessee across office, manufacturing, storage, shipping/receiving, and controlled nuclear fuel environments.

US Citizenship Required

Bachelor's

Category
Operations & Logistics (1)
Required Skills
Data Analysis

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Requirements
  • A bachelor's degree in Engineering, Nuclear Engineering, Nuclear Technology, Science, Mathematics, or a related technical discipline; equivalent relevant nuclear-industry experience may be considered based on position level.
  • Experience in nuclear operations, nuclear material accountability, safeguards, inventory control, regulated manufacturing, or another highly controlled technical environment.
  • Previous experience with Department of Energy Nuclear Material Control and Accountability programs.
  • Experience serving as a Material Balance Area Coordinator, Material Balance Area Custodian, nuclear material representative, material control specialist, or similar role.
  • Experience with special nuclear material, enriched uranium, or nuclear fuel manufacturing.
  • Working knowledge of Material Balance Areas, material balances, physical inventories, inventory differences, and nuclear material transaction records.
  • Experience with nuclear material measurement, measurement-control programs, tamper-indicating device programs, and controlled nuclear material movements.
  • Familiarity with Department of Energy safeguards and security requirements, Nuclear Materials Management and Safeguards System, and/or other nuclear material accountability databases.
  • Experience working within an NQA-1 or comparable nuclear quality assurance environment.
  • Strong analytical, recordkeeping, and technical writing skills with the ability to identify and resolve discrepancies in material, measurements, documentation, and records.
  • Proficiency with electronic records, spreadsheets, databases, and inventory or material-accountability systems.
  • Ability to obtain and maintain all facility-specific training, qualification, access, and security requirements applicable to the position, including formal Material Balance Area Coordinator qualification before independently performing designated activities.
Responsibilities
  • Serve as the designated and qualified Material Balance Area Coordinator for one or more assigned Material Balance Areas.
  • Maintain accurate nuclear material location, quantity, material form, status, and identification information within assigned Material Balance Areas.
  • Verify receipts, transfers, movements, process transactions, and inventory changes are properly authorized and documented.
  • Support material balance calculations, inventory reconciliation, and investigation of inventory differences or discrepancies.
  • Review nuclear material transactions and records for completeness and accuracy before entry or submission to applicable accountability systems.
  • Coordinate and support periodic physical inventories of nuclear material within assigned Material Balance Areas.
  • Verify material identification, location, quantity, container status, and tamper-indicating device information during inventory activities.
  • Support inventory preparation, inventory freeze activities, counts, reconciliation, and closeout.
  • Investigate and document discrepancies identified during inventories.
  • Support independent verification, assessments, and audit activities associated with physical inventories.
  • Coordinate and document nuclear material movements within and between Material Balance Areas and verify required authorization before transfers occur.
  • Confirm material identity, quantity, container identification, source and destination, and required documentation before transfers are completed.
  • Coordinate with Operations, Shipping and Receiving, Security, Radiation Protection / Environment, Safety, and Health, and Nuclear Material Control and Accountability personnel for nuclear material movements.
  • Support preparation and verification of documentation associated with off-site receipts and shipments.
  • Ensure material movements comply with applicable access-control, two-person, tamper-indicating device, and material-control requirements.
  • Support implementation of nuclear material measurement and measurement-control requirements.
  • Review measurement data used for nuclear material accountability for completeness, traceability, and appropriate application.
  • Coordinate with technical personnel to resolve measurement anomalies, data-quality issues, and material-accounting discrepancies.
  • Support development and maintenance of material accountability data, reports, and performance indicators.
  • Maintain accurate, defensible electronic records using spreadsheets, databases, inventory tools, and material-accountability systems.
  • Apply, verify, document, and control tamper-indicating devices in accordance with approved procedures and qualification requirements.
  • Maintain accurate records of tamper-indicating device numbers, application, removal, replacement, and status.
  • Verify container integrity and required material-control measures during routine activities.
  • Immediately report evidence of tampering, missing material, unauthorized movement, broken or unexpected tamper-indicating devices, or other safeguards concerns.
  • Stop or suspend a nuclear material activity when required controls, authorizations, or documentation are not in place.
  • Perform assigned activities in accordance with the Standard Nuclear Nuclear Material Control and Accountability Program and implementing procedures.
  • Support compliance with applicable Department of Energy, contractual, and facility-specific nuclear material control and accountability requirements.
  • Participate in Nuclear Material Control and Accountability assessments, surveillances, audits, investigations, corrective-action activities, and continuous-improvement initiatives.
  • Assist with development and revision of Nuclear Material Control and Accountability procedures, forms, work instructions, training materials, and qualification documents.
  • Support required nuclear material reports and transactions, including Nuclear Materials Management and Safeguards System-related activities, as assigned.

Standard Nuclear, Inc. designs, engineers, and manufactures TRISO fuel for next‑generation reactors. Its TRISO fuel uses uranium kernels encased in multiple ceramic and carbon layers to withstand extreme temperatures, and the company operates a toll‑manufacturing model where customers supply the uranium feedstock and Standard Nuclear converts it into finished fuel. Unlike many competitors, it does not own reactors and relies on a reactor‑agnostic production line in Oak Ridge, backed by privately funded IP and institutional investors. The company aims to support the growth of SMRs, microreactors, and other advanced systems by providing a reliable, scalable fuel supply that enhances decarbonization, energy security, and defense applications.

Company Size

51-200

Company Stage

IPO

Headquarters

Oak Ridge, Tennessee

Founded

2025

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Simplify Jobs

Simplify's Take

What believers are saying

  • August 2026 backlog reached $576.9 million after Radiant and Antares agreements.
  • Q2 2026 revenue rose to $4.7 million, and IPO cash reached $239.9 million.
  • Construction finished at Tennessee and Idaho plants, adding up to five MTU capacity.

What critics are saying

  • SN-TN and SN-ID target Q4 2026 authorization; NRC slippage delays revenue.
  • Radiant and Antares concentrate backlog; any reactor delay hits Standard Nuclear immediately.
  • A nuclear safety incident would freeze TRISO adoption and destroy customer demand.

What makes Standard Nuclear unique

  • Standard Nuclear operates the only independent U.S. industrial-scale TRISO fuel line.
  • Its reactor-agnostic toll model sells fuel fabrication, not reactor ownership.
  • Oak Ridge SN-0 and Framatome’s Richland JV create domestic manufacturing depth.

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Benefits

Flexible Work Hours

Remote Work Options

Growth & Insights and Company News

Headcount

6 month growth

22%

1 year growth

22%

2 year growth

39%
Yahoo Finance
Aug 28th, 2026
Standard Nuclear shares jump 4.45% after binding TRISO fuel supply deal with Radiant

Standard Nuclear's shares rose 4.45% to $14.31 following a binding TRISO fuel supply agreement with Radiant Industries. The deal covers multiple metric tons of fuel for Kaleidos microreactors through 2031. The stock has gained 10.33% over seven days and 89.79% over 30 days. Recent fuel contracts and a new board appointment have driven this momentum. However, a DCF valuation model estimates Standard Nuclear's fair value at $9.42, suggesting the stock is overvalued by nearly $5 per share at current levels. The company reported a $14.97 million loss on $3.36 million revenue, with a market capitalisation of $2.20 billion. The valuation gap raises questions about whether the TRISO contract pipeline is already fully priced into the shares.

Grafa
Aug 27th, 2026
Standard Nuclear backlog reaches $576.9 million.

Standard Nuclear backlog reaches $576.9 million. * Standard Nuclear reported Q2 2026 revenue of $4.7 million, up from $0.6 million a year earlier. * Total contract backlog increased to $576.9 million after a new fuel supply agreement. * The company advanced TRISO fuel production facilities and completed a New York Stock Exchange IPO. Standard Nuclear (NYSE:STDN) reported second quarter 2026 revenue of $4.7 million, up from $0.6 million in the prior-year period, while total contract backlog later increased to $576.9 million following new customer agreements. The company reported total contract backlog of $241.5 million as of June 30, 2026, compared with $91.3 million on March 31, 2026, while funded backlog increased to $61.9 million from $8.2 million. Standard Nuclear Chief Executive Officer said the company continued converting its qualified pipeline into long-term contracts and advancing production capabilities, according to the company's earnings announcement. During the quarter, Standard Nuclear delivered 50 kgU of TRISO fuel and completed delivery of the remaining reactor core after quarter end, marking the first reactor core of commercially produced TRISO fuel supplied by an independent U.S. manufacturer, according to the company. Standard Nuclear stated that construction was substantially completed at its Tennessee and Idaho production facilities, with startup, commissioning, and authorization activities underway and operating authorization targeted for the fourth quarter of 2026. The company also completed an initial public offering on the New York Stock Exchange, adding approximately $137.7 million in net proceeds, and reported a pro forma debt-free balance sheet with approximately $239.9 million in cash. Frequently asked questions. STDN signals

Yahoo Finance
Aug 27th, 2026
Standard Nuclear reports $576.9M contract backlog and first commercial TRISO fuel delivery

Standard Nuclear reported second quarter 2026 revenue of $4.7 million, an eight-fold increase from $0.6 million in the prior-year period. The company delivered 50 kgU of TRISO fuel in Q2 and completed its first reactor core of commercially produced TRISO fuel post-quarter. Total Contract Backlog reached $241.5 million at 30 June, up from $91.3 million at 31 March. Following a new fuel supply agreement after quarter end, Funded Backlog increased 93% to $119.3 million and Total Contract Backlog rose to $576.9 million. Construction was substantially completed at new Tennessee and Idaho production facilities, with authorisation to operate targeted for Q4 2026. The company completed its initial public offering on 17 July, adding approximately $137.7 million in net proceeds.

ExchangeMonitor
Aug 17th, 2026
Standard Nuclear adds Cohen to board of directors.

Standard Nuclear adds Cohen to board of directors. By ExchangeMonitor Former Department of Energy legal counsel official Seth Cohen joined Standard Nuclear's board of directors, the company said Aug. 14 in a LinkedIn post. Cohen's appointment comes after he left the federal government in June. When in the government, Cohen was... Thank you for visiting Weapons Complex Morning Briefing!

Associated Press
Aug 14th, 2026
Standard Nuclear appoints former DOE nuclear policy chief Seth Cohen to board

Standard Nuclear has appointed Seth Cohen to its board of directors, effective 12 August 2026. Cohen previously served as Chief Counsel for Nuclear Policy at the US Department of Energy, where he oversaw nuclear legal and policy work and coordinated with the White House, the Nuclear Regulatory Commission, and NASA on advanced nuclear and space power systems. Before joining government, Cohen practised at Kirkland & Ellis in San Francisco, handling Supreme Court and appellate litigation. Standard Nuclear, listed on the NYSE, produces TRISO nuclear fuel for advanced reactors with applications across defence, industrial, and commercial programmes. The company describes itself as the nation's only independent manufacturer of TRISO fuel.