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Nuclear Core Design Engineer Jobs in Tennessee (NOW HIRING)

Pae

Power Systems Design Engineer

Tullahoma, TN

AS projects span the automotive, motorsports, defense, nuclear, and aerospace markets. Recent ... AS is looking for a Power Systems Design Engineer to support projects ranging from small studies to ...

Amentum

Power Systems Design Engineer

Tullahoma, TN · On-site

AS projects span the automotive, motorsports, defense, nuclear, and aerospace markets. Recent ... AS is looking for a Power Systems Design Engineer to support projects ranging from small studies to ...

Akima, LLC

Piping Design Engineer, Level IV

Oak Ridge, TN · On-site

$76K - $103K/yr

... Y-12's core mission to ensure a safe, secure, and reliable U.S. nuclear deterrent, which is ... Responsibilities * Provide CNS, Mission Engineering with full time piping design engineering ...

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Nuclear Core Design Engineer information

What are the key skills and qualifications needed to thrive as a nuclear core design engineer?

To thrive as a Nuclear Core Design Engineer, you need a strong background in nuclear engineering, reactor physics, and thermodynamics, typically supported by a relevant engineering degree. Proficiency with simulation and modeling software such as MCNP, SCALE, or CASMO, and familiarity with regulatory codes are essential. Strong analytical thinking, attention to detail, and effective teamwork set standout professionals apart in this field. These skills ensure safe, efficient, and regulatory-compliant reactor core designs, which are critical for nuclear plant operation and public safety.

What are some common challenges faced by nuclear core design engineers during new reactor projects?

Nuclear Core Design Engineers often encounter challenges such as balancing safety requirements with optimal reactor performance during new projects. They must navigate complex regulatory standards, work with interdisciplinary teams, and ensure that their designs account for fuel efficiency, thermal limits, and long-term reliability. Close collaboration with safety analysts, operations staff, and regulatory bodies is essential to address evolving project needs and unexpected technical issues. Staying current with technological advancements and adapting designs to new materials or methodologies is also a key part of the role.

What is the difference between Nuclear Core Design Engineer vs Nuclear Reactor Engineer?

AspectNuclear Core Design EngineerNuclear Reactor Engineer
Primary FocusDesigning and optimizing nuclear reactor cores for safety and efficiencyOperating, monitoring, and maintaining nuclear reactors during operation
Required CredentialsEngineering degree, often with specialization in nuclear engineering, certifications in reactor safetyEngineering degree, nuclear engineering background, reactor operation licenses
Work EnvironmentDesign labs, research facilities, engineering officesReactor sites, power plants, operational control rooms
Industry UsageUsed during reactor design, development, and safety analysis phasesActive during reactor operation, maintenance, and troubleshooting

The main difference is that Nuclear Core Design Engineers focus on designing and optimizing reactor cores before and during construction, while Nuclear Reactor Engineers are involved in the operation and maintenance of reactors once they are active. Both roles require nuclear engineering expertise but serve different stages of the reactor lifecycle.

What does a nuclear core design engineer do?

A Nuclear Core Design Engineer is responsible for designing, analyzing, and optimizing the arrangement and performance of fuel assemblies within a nuclear reactor core. Their work ensures the reactor operates safely and efficiently while meeting regulatory requirements and power output goals. This involves complex calculations, simulations, and collaboration with other engineers to assess fuel utilization, thermal limits, and overall core behavior during various operating conditions.
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Nuclear Core Design Engineer jobs near you

Electrical Design Engineer

Geosyntec Consultants, Inc.

Harriman, TN

Full-time

Re-posted 2 days ago

Job description

Longenecker & Associates (L&A), a Geosyntec Company, is a trusted partner enabling critical missions across the U.S. Department of Energy (DOE) complex for more than 30 years. We contribute to DOE’s nuclear security and environmental remediation enterprise by providing the highest-caliber staff and experts. We are seeking a motivated Electrical Design Engineer to contribute to our mission supporting our work at Centrus Energy in Oak Ridge, TN.

Geosyntec is an innovative, international engineering and consulting firm serving private and public-sector clients to address new ventures and complex problems involving our environment, natural resources, and civil infrastructure. Our engineers, scientists, technical and project employees serve our clients from offices across the world. Ranked by ENR as one of the top environmental engineering design firms, Geosyntec is internationally known for its technical leadership, broad experience, and exceptional client service.

We invest in our people.  Each employee is unique, and your career at Geosyntec will be too.  We offer competitive pay and benefits, and well-being programs to support you and your family.

To Learn More Visit: http://www.geosyntec.com/careers/.


We are seeking a highly skilled and experienced manager to lead a multidisciplinary team responsible for facility electrical power systems. This role ensures safe, reliable, and compliant electrical systems across the facility while supporting new equipment integration, upgrades, and troubleshooting. 

Key Responsibilities: 

  • Oversee design, installation, and maintenance of facility electrical power systems (480V/240V distribution, switchgear, MCCs, UPS, generators); 
  • Own electrical standards, safety compliance (NEC, NFPA 70E, UL, CE), and documentation; 
  • Partner with Facilities, Manufacturing, and Automation teams on equipment installations and upgrades;
  • Lead root-cause analysis for electrical failures, downtime events, and equipment reliability issues; 
  • Ensure electrical schematics, wiring diagrams are maintained and updated; 
  • Manage external contractors, integrators, and vendors as required; 
  • Drive continuous improvement in power reliability, energy efficiency, and electrical safety;
  • Provide capital project support including scope development, design review, and commissioning; and
  • Serve as Electrical Authority Having Jurisdiction (AHJ).

  • Bachelor’s degree in electrical engineering or related technical field. (required)

  • At least 5 years in Electrical Design; or equivalent combination of education and experience. (required)
  • Prior experience on large EPC project and/or nuclear project.
  • Working knowledge of control plans and voltage distribution systems.
  • Working knowledge of CAD tools and/or ETAP.
  • Knowledge of electrical standards and codes. 
  • Due to federal contract security requirements, this position requires U.S. Citizenship. (required)
  • Due to federal contract security requirements, candidates must be able to successfully pass a federal background investigation to secure and maintain DOE Q security clearance. (preferred)
  • Health & Safety training, medical monitoring, and client-driven drug and background testing. (required)

Please note that marijuana remains a Schedule III controlled substance under Federal Law. Federal contractors must follow Federal drug-free workplace rules, which prohibit marijuana use, even if medical or recreational use is permitted under State Law.  

Preferred Qualifications and Location Details

  • Active Q Clearance.
  • Project management experience. 
  • Centrus Energy – Oak Ridge, TN
  • Onsite position.
  • Initial year contract with possibility of extension and/or conversion.

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