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Standard Nuclear

Standard Nuclear

Toll-manufacturer of TRISO fuel for reactors

Mechanical Engineer

Full-TimePosted on 9/15/2026
No salary listed
Mid
Bachelor's
Oak Ridge, TN, USA
In Person
No H1B Sponsorship
US Citizenship Required

About the job

Requirements
  • A bachelor's degree in Mechanical Engineering or a related engineering field.
  • At least 3 years of experience in mechanical design, manufacturing engineering, equipment design, process equipment, tooling, or related technical work.
  • Experience designing or supporting equipment, fixtures, tooling, material handling systems, or production support hardware.
  • Proficiency with computer-aided design software and the ability to create, review, and revise engineering drawings and models.
  • Experience supporting fabrication, installation, commissioning, troubleshooting, or improvement of mechanical systems.
  • Strong understanding of mechanical design principles, manufacturability, tolerancing, materials, equipment reliability, and practical fabrication methods.
  • Strong hands-on problem-solving skills and the ability to work effectively across engineering, manufacturing, quality, maintenance, and vendor teams.
Responsibilities
  • Develop mechanical designs for equipment, tooling, fixtures, material handling systems, and production support hardware.
  • Create and review drawings, models, specifications, layouts, and technical requirements for manufacturing equipment and related systems.
  • Support design activities from concept development through detailed design, fabrication, installation, testing, and commissioning.
  • Evaluate equipment performance, mechanical functionality, maintainability, reliability, and manufacturability.
  • Ensure mechanical designs support safe operation, practical fabrication, ease of maintenance, and production scalability.
  • Support development of fabrication methods, equipment concepts, tooling approaches, and process support systems for advanced manufacturing activities.
  • Work with internal teams and external vendors to source, fabricate, modify, and implement mechanical components and equipment.
  • Provide engineering support during buildout, installation, troubleshooting, and startup of new or modified equipment.
  • Identify design risks, equipment limitations, fabrication constraints, and opportunities for improvement.
  • Support hands-on problem-solving during equipment trials, process development activities, and production readiness work.
  • Work with fuel development and manufacturing teams to translate process needs into practical mechanical designs and equipment solutions.
  • Support optimization of manufacturing systems to improve repeatability, throughput, reliability, ergonomics, and product quality.
  • Assist with layout planning, material movement, equipment integration, containment approaches, and production workflow improvements.
  • Collaborate with maintenance and operations teams to ensure equipment designs can be operated, maintained, and repaired effectively.
  • Support investigations related to equipment performance, mechanical failures, production interruptions, or process variability.
  • Prepare and maintain engineering documentation, including drawings, specifications, design notes, equipment records, test plans, reports, and change documentation.
  • Support design reviews, technical reviews, project planning, readiness reviews, and cross-functional problem-solving activities.
  • Coordinate with vendors, fabricators, and internal stakeholders to keep engineering deliverables moving on schedule.
  • Communicate technical status, design risks, open issues, and recommended actions clearly to engineering and project leadership.
  • Ensure work is completed in accordance with applicable quality, safety, radiological, environmental, and operational requirements.
Desired Qualifications
  • Experience in advanced manufacturing, chemical processing, nuclear, aerospace, defense, energy, industrial equipment, or other regulated technical environments.

About the company

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'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.