CNC Operator Job Description Template

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CNC Operator Job Description Template

What is a CNC Operator?

CNC operators are responsible for setting up and operating CNC machines, monitoring machine performance, inspecting finished products, and performing routine maintenance. They ensure precision and accuracy in manufacturing processes.

CNC operators typically require a high school diploma or equivalent. Additional training in CNC machine operation and experience in a manufacturing environment are often necessary.

CNC Operator Job Description Template

Job Brief

We are looking for a competent CNC Operator to use computer numerically controlled (CNC) machinery safely and accurately to perform a variety of functions. Your job is important since some materials are not easy to shape or handle manually or with conventional equipment.

CNC Operators are highly skilled professionals, able to work with great concentration and precision. They must be responsible and comply with all safety guidelines. A keen eye for detail and great mechanical aptitude are also essential.

The goal is to produce high quality parts and materials by programming machines to perform the right operations.


  • Prepare and operate CNC machines to perform tasks such as drilling, grinding, milling etc.
  • Understand specifications of the task at hand and the desired result by reading blueprints, mechanical drawings etc.
  • Translate instructions into computer commands so the machines can perform the correct function
  • Prepare and load raw materials and parts onto the machines
  • Prepare a test run to check if the machines produce outputs according to specifications
  • Set machines to complete full cycles to fabricate large number of parts
  • Supervise the machines while they execute the tasks and make any necessary adjustments to produce a better result
  • 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


  • Proven experience as CNC operator
  • Skill in operating CNC machinery and tooling as well as precision measurement tools
  • Ability to read and interpret mechanical documents and drawings
  • Computer savvy with basic understanding of computer programming and CAD/CAM
  • Mechanical aptitude and good math skills
  • A keen eye for detail and results-driven approach
  • Good communication abilities
  • High school diploma or equivalent; certificate or diploma in engineering or relevant discipline is a plus
  • Successfully completed apprenticeship is required

What does CNC Operator do?

A CNC (Computer Numerical Control) operator is responsible for operating and maintaining CNC machinery, which is used to cut, shape, and finish materials like metals and plastics. On a day-to-day basis, a CNC operator typically performs the following tasks:

  1. Machine Setup: This involves preparing the CNC machine for operation, which includes loading raw materials, installing cutting tools, and ensuring the machine is calibrated and functioning properly.

  2. Program Loading: The operator loads the required computer programs (often known as G-code) into the CNC machine's control system. These programs contain instructions for the machine to execute the desired operations.

  3. Machine Operation: The operator starts the CNC machine and monitors its operation throughout the shift. They ensure that the machine is running smoothly and make any necessary adjustments or corrections if deviations occur.

  4. Quality Control: CNC operators are responsible for inspecting and measuring finished parts to ensure they meet the required specifications and quality standards. They may use precision measuring tools and visual inspections to verify the accuracy and quality of the parts.

  5. Troubleshooting: If a problem or error occurs during the production process, the operator is responsible for identifying and troubleshooting the issue. This can involve diagnosing machine malfunctions, adjusting settings, or replacing worn-out tools or parts.

  6. Maintenance: CNC operators usually perform routine maintenance tasks on the machines they operate. This includes cleaning and lubricating the equipment, replacing worn-out tools, and conducting basic repairs. They may also work closely with maintenance technicians for more complex issues.

  7. Documentation: Operators often maintain records of production activities, including the number of parts produced, time taken, and any issues encountered. This documentation helps monitor production efficiency and facilitates quality control analysis.

Overall, CNC operators play a crucial role in ensuring the accurate and efficient operation of CNC machinery, producing high-quality parts, and maintaining a safe working environment.

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