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Energy

Navy Nuclear Operations and Machinist’s Mate

Responsible for keeping Naval submarines and ships running. Nuclear Operations involves everything from operating nuclear propulsion plant machinery, to controlling auxiliary equipment that supports Naval reactors, to maintaining various electronic, propulsion and weapons systems. Machinist's Mates (MM) operate, maintain, and repair ship propulsion machinery, auxiliary equipment, and outside machinery, such as: steering engine, hoisting machinery, and boilers.

Annual openings

2,809

Median wage

n/a

Typical education

High school (GED), plus on-the-job training

Growth 2026–2032

+3%

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Career requirements

What does this career require?

Explore education, required qualifications, voluntary credentials and employer preferences for this role. Check the details to see which apply.

Typical education

High school (GED), plus on-the-job training

Credential requirement

Credential requirements not reported

Work experience

This is an entry-level role so no experience is required.

Salary/Demand information crosses multiple jobs within the military.

Is this work a fit?

What the work actually feels like

How people in this career tend to spend their time, the interests it draws on, and a look at a typical day.

Work style

The type of work can vary by job and employer.

  • With childrenNo
  • On a computerMay vary
  • OutdoorsMay vary
  • With your handsMay vary

Interests it draws on

  • Trades
  • Mechanics
  • Energy and Utilities

Automation exposure

Moderate exposure

Some routine tasks may shift as tools improve, but the role is likely to adapt.

A typical day

  1. Operate nuclear power reactors in accordance with policies and procedures to protect workers from radiation and to ensure environmental safety.
  2. Adjust controls to position rod and to regulate flux level, reactor period, coolant temperature, or rate of power flow, following standard procedures.
  3. Develop or implement actions such as lockouts, tagouts, or clearances to allow equipment to be safely repaired.
  4. Respond to system or unit abnormalities, diagnosing the cause, and recommending or taking corrective action.
  5. Monitor all systems for normal running conditions, performing activities such as checking gauges to assess output or the effects of generator loading on other equipment.
  6. Monitor or operate boilers, turbines, wells, or auxiliary power plant equipment.
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