Senior Mechanical Engineer

Naval Nuclear Laboratory; Idaho Falls (ID); On-site; USD 96,000 - 150,000; Full time

Benefits offered by this job

Health, Dental, Vision & Voluntary

Disability, Life & Accident Insurance

401(k) Savings program & CAP

Paid Time Off

Tuition Assistance

Flexible Work Schedules

Student Debt Benefit / PTO Sell

Employee Assistance Program (EAP)

Wellness Program

Job summary

Naval Nuclear Laboratory is seeking a seasoned Facility Commissioning Engineer in Idaho Falls to oversee mechanical commissioning of HVAC, exhaust, and life safety systems, review scripts and test procedures, and ensure turnover readiness for the SFHP project.

You will work with vendors, validate redlines, and coordinate training and logistics, bringing a strong background in facility commissioning and a collaborative approach to safety and reliability.

Qualifications

• Requires technical, engineering, or science degree with relevant experience (as per degree level).
• Positions demand experience in facility commissioning and coordination with construction teams.
• Strong ability to interpret mechanical drawings, redlines and specifications.

Responsibilities

• Provide mechanical commissioning oversight for HVAC, exhaust, heat recovery units, life safety mechanical systems, and related facility equipment.
• Review scripts, Pre Test Checklists (PTCs), mechanical test procedures, and installation quality to ensure turnover readiness.
• Support walkdowns with end-users, validate redline drawing accuracy, and resolve vendor-related issues.
• Coordinate training and testing logistics and integrate commissioning activities into the project schedule.

Skills

HVAC experience

Mechanical equipment installation

Fluid/thermal systems knowledge

Facility commissioning experience

Coordination and communication skills

Read drawings and redlines

Education

Bachelor's degree in engineering/related field

Master's degree in engineering/related field

Doctorate in engineering/related field

Current Senior Reactor Training/Refueling Engineer or RPCO Engineer

Job description

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.

Job Description

The Facility Commissioning and Turnover (FCAT) unit provides commissioning oversight and turnover assurance, ensuring that all building systems and equipment delivered for the Spent Fuel Handling Recapitalization Project (SFHP) meet the Owner's Project Requirements and are ready for operational acceptance. In this role, you will serve as mechanical commissioning oversight for HVAC, exhaust systems, heat recovery units, life safety mechanical systems, and other facility mechanical equipment. You will review scripts, Pre Test Checklists (PTCs), mechanical test procedures, and installation quality, ensuring mechanical systems meet design requirements and are ready for turnover. Responsibilities include supporting walkdowns with end-users, validating redline drawing accuracy, resolving vendor related issues, integrating mechanical commissioning activities into integrated construction schedule, and coordinating training and testing logistics.

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 6 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 4 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 1 year of relevant experience; or Currently a Senior Reactor Training Engineer, Refueling Engineer, or Field (RPCO) Engineer at the Company.

Preferred Skills

• Experience with HVAC, mechanical equipment installation, and fluid/thermal systems
• Facility commissioning experience
• Strong coordination and communication skills
• Ability to interpret mechanical drawings, redlines, and specifications

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

$95,700.00 - $149,600.00 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, satellite, and vendor locations.

For more than 75 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 controlled substance and illegal under Federal Law. Therefore, FMP is required to test for marijuana.

Fluor Marine Propulsion, LLC is an Equal Opportunity Employer, including disability/vets. All qualified applicants will receive consideration for employment without regard to race, color, age, sex, religion, national origin, disability, veteran status, genetic information, or any other criteria protected by federal, state, or local law.