CNC Machinist & Programmer — Precision Parts Expert

Knowles Corporation; San Diego (CA); On-site; USD 55,000 - 75,000; Full time

Job summary

Knowles Corporation in San Diego seeks a skilled CNC Machinist/Programmer to develop, edit, and run CNC programs for precision parts. You will interpret drawings and GD&T, select tooling, setup machines, and verify dimensions using calipers and micrometers.

The role requires Mastercam proficiency, experience with milling and turning, and a commitment to safety and lean manufacturing. You will contribute to process improvements and maintain a clean, organized shop environment.

Qualifications

• High school diploma or equivalent.
• 3+ years hands-on machining experience.
• 1+ year CNC programming experience.
• Experience with Mastercam 2018 or newer required.
• Preferred: associate degree or technical training in machining.

Responsibilities

• Review work orders, drawings, GD&T callouts to plan operations.
• Create CNC programs for new parts and modify existing programs using Mastercam.
• Set up, prove out, and operate CNC milling machines and lathes; verify programs and tooling.
• Set up and operate Wire EDM equipment as required.
• Set up and operate manual mills and drill presses as required.
• Adjust machine settings and troubleshoot machining issues per procedures.
• Align, locate, and secure workpieces using fixtures and work holding.
• Install and adjust cutting tools for material and operation.
• Follow manufacturing methods and setup documentation.
• Determine feeds, speeds, and depth of cut to meet specs.
• Deburr and finish parts per drawings and route sheets.
• Inspect in-process and finished parts with measurement tools.
• Maintain shop cleanliness and report equipment issues.
• Identify safety, quality, or workflow improvements and support lean initiatives.
• Follow safety policies and maintain a clean work area.
• Review CAD files and use Mastercam to extract dimensions for programming.
• Ensure parts are burr-free and defect-free per specs.

Skills

CNC programming

Machining operations

Quality inspection

GD&T

Education

High school diploma

Associate degree or technical training

Tools

Mastercam

SolidWorks

Job description

Knowles Corporation in San Diego seeks a skilled CNC Machinist/Programmer to develop, edit, and run CNC programs for precision parts. You will interpret drawings and GD&T, select tooling, setup machines, and verify dimensions using calipers and micrometers.

The role requires Mastercam proficiency, experience with milling and turning, and a commitment to safety and lean manufacturing. You will contribute to process improvements and maintain a clean, organized shop environment.