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Principal Mechanical Engineer

Job in Idaho Falls, Bonneville County, Idaho, 83401, USA
Listing for: Naval Nuclear Laboratory
Full Time position
Listed on 2026-01-17
Job specializations:
  • Engineering
    Mechanical Engineer, Electrical Engineering
Salary/Wage Range or Industry Benchmark: 125000 - 150000 USD Yearly USD 125000.00 150000.00 YEAR
Job Description & How to Apply Below

About Us

Working at the Naval Nuclear Laboratory we foster pride in belonging to an organization whose culture is made up of these core values:
Trust, Empowerment, and Collaboration. Our company promotes a positive culture while ensuring the safety and reliability of our nation's naval nuclear reactors, and training the Sailors who operate those reactors in the U.S. Navy's submarines and aircraft carrier Fleets. Looking for a lifetime career Apply today!

Job Description

The Naval Reactors Facility Lifting and Handling Engineering team is seeking a highly skilled and motivated engineer to support a wide range of tasks to maintain reliable, high-quality cranes and weight handling equipment. These tasks include but are not limited to:

  • Ensure the continued certification, safety, and operational readiness of all weight handling equipment.
  • Develop procedures providing technical instruction to operate and maintain weight handling equipment.
  • Issue specifications for new designs and equipment upgrades to support the procurement of new equipment.
  • Perform field engineering activities and troubleshooting to ensure equipment is maintained and ready for use.
  • Conduct internal and external audits and surveillances to validate compliance and identify opportunities for improvement.

Mechanical Engineers: crane structures, drive trains and gearboxes, hoist machinery, hoist and travel brakes, lubrication, rigging gear, crane rails, and railroad.

The successful candidate will contribute to the Lifting and Handling mission to ensure the continued certification, operational readiness, and safe use of all weight handling equipment at the Naval Reactors Facility. This position will require periodic support of backshift operations and some limited travel. Operations performed at the Naval Reactors Facility directly support nuclear operations of the United States naval fleet.

Required

Combination of Knowledge and Skill

Bachelors degree from an accredited college or university in a related technical, engineering or science field and a minimum of 9 years of relevant experience; or Masters degree from an accredited college or university in a related technical, engineering or science field and a minimum of 7 years of relevant experience; or Doctorate degree from an accredited college or university in a related technical, engineering or science field and a minimum of 3 years of relevant experience;

or Currently a Principal Reactor Training Engineer, Refueling Engineer, or Field (RPCO) Engineer at the Company.

Preferred Skills
  • Degree in Mechanical Engineering, Structural Engineering, Civil Engineering.
  • Crane and heavy equipment design, manufacturing, welding, testing, operations, maintenance, or troubleshooting experience.
  • Strong technical communications and team building skills.
  • Ability to manage and organize tasks effectively.
  • Project Management experience including schedule development, risk management, and stakeholder communications.
Compensation and Benefits
  • Health, Dental, Vision & Voluntary Benefits
  • Disability, Life & Accident Insurance
  • 401(k) Savings program & Capital Accumulation Plan
  • Personal & Medical Time Off
  • Paid Parental Leave
  • Flexible Work Schedules
  • Tuition Assistance for Eligible Employees
  • Student Debt Benefit Personal Time Off Sell Program
  • Employee Assistance Program (EAP)
  • Wellness Program
  • Visit us online to view all NNL benefits!
Pay Range

$ - $ annually
Salary information provided is a general guideline only. Annual salary is based upon candidate experience and qualifications, as well as market and business considerations.

The Naval Nuclear Laboratory is operated for the U.S. Department of Energy (DOE) by Fluor Marine Propulsion, LLC (FMP), a wholly owned subsidiary of Fluor Corporation. Naval Nuclear Laboratory personnel are FMP employees who work at four DOE facilities:
Bettis Atomic Power Laboratory, Knolls Atomic Power Laboratory, Kenneth

A. Kesselring Site, and Naval Reactors Facility, and at the U.S. Department of Defense-owned Nuclear Power Training Unit-Charleston. FMP employees also have an established presence at numerous shipyards and vendor locations. For nearly 70 years, the Naval Nuclear Laboratory has developed advanced nuclear propulsion technology, provided technical support, and trained world-class nuclear operators to ensure the safe and reliable operation of our nation's submarine and aircraft carrier Fleets.

The Naval Nuclear Laboratory is a national asset solely dedicated to the Naval Nuclear Propulsion Program. We rely on the dedication and innovation of our nearly 8000 engineers, scientists, technicians, and support personnel.

All candidates must be U.S. citizens. Applicants selected will be subject to a Federal background investigation and must meet eligibility requirements for access to classified matter. FMP is a government contractor and maintains a drug free workplace and workforce. All candidates must be able to pass a drug test in compliance with FMP company policy and 10 CFR 707. Marijuana is a Federal Schedule I…

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