ATR Millwright
About The Position
The Advanced Test Reactor (ATR) at Idaho National Laboratory is seeking a Millwright Mechanic to join its Maintenance team. This role is crucial for the precision installation, alignment, and maintenance of rotating equipment and mechanical systems that keep the ATR facility operational. The work supports critical research in nuclear fuel development, materials science, national security, and advances U.S. nuclear energy policy. If you are dedicated to precision work and want to be part of a team with the same commitment, this position offers a unique opportunity to contribute to significant scientific missions.
Requirements
- High School diploma or GED plus 5 years of applicable experience in industrial mechanical systems with an emphasis on rotating equipment and millwright work, OR a 2-year vocational/technical training plus 3 years of experience, OR a recognized trade apprenticeship completion plus 2 years of applicable experience
- Proficiency with precision instruments — micrometers, calipers, laser alignment tools, and dial indicators
- Familiarity with vibration analysis and predictive maintenance techniques
- Ability to read and interpret blueprints, schematics, and OEM manuals
- Working knowledge of LOTO, PPE, confined space entry, and industrial safety standards
- Ability to obtain Radiological Worker Qualification within 45 days of hire
- Valid state driver's license
- Ability to obtain and maintain a DOE "L" security clearance within 1 year of hire, which requires U.S. citizenship.
Nice To Haves
- 5+ years of journeyman-level millwright experience in an industrial or commercial setting.
- Experience in nuclear, government, or other highly regulated industrial environments.
Responsibilities
- Install, align, and maintain centrifugal and positive displacement pumps, motors, gearboxes, couplings, and shafts
- Perform precision shaft and laser alignment of rotating machinery
- Use micrometers, dial indicators, feeler gauges, and calibrated torque tools
- Use vibration analysis equipment to evaluate rotating equipment condition
- Dismantle and reassemble complex mechanical components — gearboxes, couplings, shafts, and related systems
- Remove, inspect, and install all bearing types — sleeve, roller, ball, thrust, and journal
- Replace mechanical, O-ring, and lip seals; replace pump packing
- Lubricate equipment, collect oil samples, and perform vibration monitoring
- Balance fans and perform predictive maintenance on rotating equipment
- Maintain hydraulic and pneumatic systems
- Interpret OEM manuals, schematics, and technical documentation
- Participate in work planning, material procurement, and man-hour estimating
- Mentor and provide on-the-job training to less experienced craftsmen
- Actively participate in all company safety programs including VPP, ALARA, and EST
- Complete the ATR Mechanic Qualification Card and all other required training as directed
- Perform other duties as assigned by management
Benefits
- Support research that advances U.S. nuclear energy, national security, and the future of clean power.
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What This Job Offers
Job Type
Full-time
Career Level
Mid Level
Education Level
High school or GED
