CNC Machinist

Date: Jan 27, 2026

Location: Oakville, ON, CA

Company: BWXT

BWXT Precision Manufacturing Inc. (BWXT PMI) supplies nuclear-grade materials and precision machined components for CANDU® nuclear power utilities around the globe. Based in Oakville, Ontario, BWXT PMI employs more than 130 employees, including manufacturing engineers and skilled trades personnel specializing in the manufacture of complex components through the use of leading-edge equipment.
 

BWXT Precision Manufacturing Inc. (BWXT PMI) is a leading supplier of nuclear-grade materials and precision-machined components for CANDU® nuclear power utilities around the globe. We are an industry leader in providing critical nuclear components such as Fuel Channel End Fittings, Liners, Feeders, and Shield Plugs. BWXT PMI has a range of opportunities in professional disciplines, including Machining, Metal Fabrication, Quality Control, Project Management and Engineering. For more information, please see our website here.

 

BWXT PMI is conveniently located between Toronto and Hamilton, nestled along Lake Ontario, the town of Oakville invites you to relax and enjoy a perfect blend of urban charm and natural beauty. With its lakeside views, vibrant arts scene, and abundant outdoor activities, Oakville offers something for everyone. Home to over 200,000 residents, this thriving community combines rich culture, exceptional dining, and welcoming neighborhoods, making it a great place to live, work, and explore: Parks, Recreation & Culture

 

Welcome to BWXT 

 

We believe in empowering our employees and cultivating a dynamic workplace that fosters growth and collaboration. Whether you’re an experienced professional or just starting your career, you'll find opportunities to challenge yourself, learn from seasoned experts, and contribute to nuclear innovation. We required a diverse range of skills to support our work in the markets that drive our business and welcome candidates from all backgrounds and life stages who are passionate about making a difference.

 

Position Overview:

 

The CNC Machinist reports to the Production Supervisor and is responsible for the operation of one or more CNC machines.  The CNC Machinist manufactures large precision-machined components working to tolerances less than 0.0005” using four and five axis mills, lathes, and/or mill-turn equipment. All work must be done purposefully with safety as the first priority.

 

Location: 

 

Onsite in Oakville, Ontario 

 

Your Day to Day:

 

  • Run multiple BWXT machines and demonstrates an ability to work on various BWXT parts of varying degrees of complexity.
  • Design and machine complex tooling / fixture as necessary.
  • Establish with CNC Programmers and Engineers the key dimensions that need to be trended at the machine in the dimension sheets and in the MCS to ensure process capability.
  • Adjust programs/reprogram the part in accordance with the approved PCR.
  • Set up, troubleshoot and/or operate one or more of the following machine(s), using vises, fixtures, chucks, etc., concurrently in assigned area under limited supervision: CNC lathe, CNC mill, bandsaw, manual mill, manual drill press, and other power tools.
  • Read and interpret technical drawings to set-up parts appropriately to ensure conformity and cycle time requirements.  
  • May transfer CNC programs between CNC equipment.
  • Monitor to ensure Tool Life Management is implemented across the cell and in the respective machines which have automated systems. 
  • Work with Manufacturing Engineering and Programming to prove out programs and lock them out, standardize and make minor changes to existing programs in accordance with established procedures.
  • Enhance and follow approved work instructions and drawings provided.
  • Strive to hit 100% first time throughput on setup’s and expedited through the QC department.
  • Follow MCS and complete sign-offs as required.
  • Perform basic machine adjustments, if necessary (ex. tool offsets).
  • Set tools per Tooling Set Sheet.
  • Read and interpret technical drawings to verify machined parts.
  • Complete PCR’s to indicate process deficiencies or to make continuous improvement recommendations.
  • Follow tooling life replacement program.
  • Visually or mechanically inspect parts for defects (cracks, chips, dimension, surface finish, etc.) as part of in-process inspection; record results and notify lead/supervisor of deviation as appropriate. 
  • Comfortable using the following for measuring and inspection: various types of micrometers and calipers, profilometer, height gauge, indicators, edge finders, thread gauges, pin gauges, and bore gauges with master ring.
  • Understand and meet or exceed production and quality standards; seek to minimize reject rate.
  • Follow approved work instructions and drawings provided.
  • Required to perform some simple machine preventative maintenance functions, i.e. checking coolants, checking lubricants, and changing filters, etc.
  • Keep machines and work area clean; notify supervisor or maintenance when machine abnormalities occur.
  • Possess the ability to use the computer system for basic departmental transactions.
  • Safely move components with lifting devices such as overhead cranes, jib cranes, and fork-lifts.

 

Required Qualifications:

 

  • Able to use a variety of BWXT machines and work on multiple BWXT parts to varying degrees of complexity.
  • Educational background in manufacturing or equivalent experience working on CNC machines.
  • CNC Machinist with a Certificate of Qualification is an asset.
  • 5+ years of experience running 4 and 5 axis CNC mills, multi-axis lathes, long lathes, and/or mill/turn machines.
  • Experience working in the aerospace, defence or nuclear industry is a definite asset.
  • Able to read and interpret engineering component drawings including a strong understanding of metrology and GD&T.
  • Demonstrated ability as an adaptable team player with strong communication and problem-solving abilities.
  • Strong ability to work independently to complete assignments promptly while maintaining the high standards required in our industry.
  • Experience using lifting devices (cranes and forklifts).

 

BWXT confirms that the position represents a current vacancy within our organization. 

At BWXT, we are committed to a fair, transparent, and inclusive hiring process.  As part of our recruitment process, we use artificial intelligence (AI) tools to assist with screening and evaluating applicants.  These tools support our efforts to make consistent and equitable hiring decisions.  

The base salary range for this position in Ontario (CA-ON) at the start of employment is expected to be between $59,000.00 and $76,000.00 per year. However, the base salary offered is based on local job market factors and may vary further depending on factors specific to the selected job candidate, such as job-related knowledge, skills, experience, and other objective business considerations. Subject to these considerations, the total compensation package for this position may also include other elements, such as an annual cash incentive in addition to a full range of medical, retirement, and/or other benefits. Details of participation in these benefit plans will be provided at such time the selected job candidate receives an offer of employment.

Learn more about how BWXT employs nuclear technology to solve some of the world’s most important problems. BWXT’s capabilities video showcases our innovation in commercial nuclear power, addressing climate change, as well as our advanced nuclear medicine products treating patients around the world. We are People Strong. Innovation Driven.

We thank all who apply, however, only those selected for an interview will be contacted.

 BWXT Precision Manufacturing Inc. embraces diversity of thought, values individuality, encourages new perspectives and provides equal opportunity in employment for all qualified employees and applicants without regard to race, ancestry, place of origin, color, ethnic origin, citizenship, creed, sex, sexual orientation, gender identity, gender expression, age, record of offences, marital status, family status or disability, or any other category protected by provincial law.

 BWXT Precision Manufacturing Inc. is committed to fostering an accessible, fair, and inclusive environment where all employees are able to access goods and services while being respected and supported. If you require accommodations during the application or interview process, please advise us as soon as possible so appropriate arrangements can be made. If you require information in a format that is accessible to you, please contact Human Resources


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