ATR Systems Mechanic - 1st Class

Job Description

The Advanced Test Reactor (ATR) at Idaho National Laboratory is one of the most unique and consequential facilities in the world. As the nation's most powerful research reactor, ATR drives breakthroughs in nuclear fuel development, materials science, and national security—work that directly shapes America's energy independence and defense capability. The systems that keep ATR operating do not maintain themselves. That is where you come in.

As a Systems Mechanic, you are not just keeping equipment running, you are keeping the mission running. This skilled trades work supports research that influences U.S. energy policy, nuclear deterrence, and the future of clean power.

• Perform corrective and preventive maintenance on industrial mechanical systems throughout the ATR Complex.
• Maintain and repair small motors and the mechanical operations of airflow valves and controllers.
• Maintain diesel fire pumps, including fluid changes, belt replacements, and major component repairs.
• Maintain overhead cranes and a variety of pumps and compressors.
• Utilize thermal sensing and vibration analysis equipment.
• Read and interpret technical drawings, schematics, and system prints to guide maintenance and repair work.
• Participate in work planning, material identification, man‑hour estimating, and procurement coordination.
• Perform leadman functions as required, including directing work, coordinating crews, and maintaining job‑site standards.
• Provide on‑the‑job training and mentorship to developing craftsmen.
• Actively participate in company safety programs, including VPP, ALARA, and EST.
• Complete the ATR Mechanic Qualification Card and all other required training.
• Perform other duties as assigned by management.

• Knowledge of basic mechanical and operational theory.
• Knowledge of tools, equipment, and electrical hazards associated with the mechanical trade.
• Knowledge of material incompatibility, suspect materials, and fasteners.
• Knowledge of work control requirements.
• Knowledge of general safety and personal protective equipment requirements.
• Knowledge of and compliance with industrial safety requirements: NFPA, 70E, Part III, first aid/CPR, lockout/tagout, portable ladders, electrical energy awareness, PPE, safe work permit, hazardous temperatures hot/cold, hazardous material supplies and disposal of waste streams.
• Ability to read and interpret drawings, schematics, and other technical documents.
• Ability to use shop fabrication tools and equipment such as drill press, hand tools, bench grinder, metal lathe, metal break, sheet metal nibblers, deburring and belt sander, laser alignment tools, precision instruments, power saws (band, reciprocating, jig, chop).
• Ability to troubleshoot, install, repair, and maintain mechanical systems and components.
• Ability to work extended periods of time in radiological work areas, including required PPE (respiratory protection, etc.).

• High school diploma or equivalent and five years of relevant experience, or two‑year vocational training plus three years of relevant experience, or completion of a recognized trade apprenticeship and two years of relevant experience.
• Demonstrated senior‑level proficiency across a broad range of mechanical systems.
• Hands‑on experience with small motor repair, diesel‑driven equipment, and facility mechanical systems.
• Proficiency with a full range of shop fabrication tools and equipment.
• Ability to read and interpret drawings, schematics, and technical documentation.
• Working knowledge of lockout/tagout (LOTO), PPE requirements, and industrial safety standards, including NFPA 70E and first aid/CPR.
• Journeyman license may be required depending on scope of work.
• Ability to obtain a Radiological Worker Qualification within 45 days of hire.
• Valid state driver's license.
• Position requires the ability to obtain and maintain a DOE "L" level security clearance, which requires U.S. citizenship.

• Radiological Worker II (Rad Worker II):
  Required for work in radiological areas throughout the ATR Complex.
• Respirator
  
  Qualification:
  
  Required for work in areas with potential airborne hazards.
• Overhead…