CNC Operator

Mac-Weld Machining Ltd. an international leader in the manufacturing of instrumentation components, serving industry in the oil and gas, power generation and waste water applications. Our ability to deliver uncompromising quality, precision products, on time and at a fair price truly sets us apart from our competition. We know this. Our customers around the world know this. Now, it is time for everyone else to know this.

Mac-Weld Machining Ltd. is seeking a CNC Operator

Skills & Responsibilities

  • Preparing and operating CNC machines to perform tasks such as drilling, milling and turning.
  • Understanding specifications of the task at hand and the desired result by reading blueprints and mechanical drawings.
  • Prepare and load raw materials and parts into the machines.
  • Supervise the machines while they execute the tasks and make any necessary adjustments to maintain tight tolerances.
  • Inspect and measure finished products and compare them with requirements to determine if the process has been completed properly.
  • Check and maintain machinery daily to ensure functionality.
  • Perform preventative maintenance as scheduled.
  • Other duties as assigned.


  • Proven experience as CNC operator and use of precision measurement tools is an asset.
  • Ability to read and interpret mechanical documents and drawings.
  • Mechanical and mathematical aptitude.
  • Strong communication skills.
  • Attention to detail.

Work Conditions and Physical Capabilities:

  • Manufacturing environment
  • Shift Work
  • Overtime
  • Exposure to dust, vibrations, noise
  • Standing for long periods of time
  • Repetitive tasks
  • Lifting heavy material up to 50 lbs.
  • Wearing proper Personal Protective Equipment
  • Tight Deadlines

This is a full-time day/evening rotating shift position in our Sarnia facility where the individual may be required to work weekends and overtime from time to time.

Remuneration: $21-$27 per hour

Signing Bonus: New regular employees will receive a signing bonus of $500 after successfully completing their three month probationary period, and $1000 after one year of continuous employment. The employee must be on active payroll for the entire timeframe to qualify. Contract positions do not qualify for the signing bonus.


Mac-Weld Machining is a privately owned company. We are proud of our connected and engaged culture, and our warm and welcoming environment. To the right individual we offer a competitive salary and benefits, annual clothing allowance and pension.
Mac-Weld is committed to diversity, employment equity and inclusion in the workplace. If you need an accommodation during the recruitment process because of a disability, please inform our recruitment team when applying so that we may provide assistance.

Job Type: Full Time
Job Location: Sarnia-Ontario

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