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Open nowFirst seen 3 hours ago

CNC Machinist

Knowles37 open roles

Where
San Diego, CA, USA
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Your applicationOpen nowCNC MachinistKnowles · San Diego, CA, USA
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The clock on this job

Early applications get read.

13.5% of postings close within 7 days. Measured by our own scanner across the market. Knowles postings stay open a median of 7 days.

Share of postings closed within
  1. 2.3%1 day
  2. 4.6%3 days
  3. 13.5%7 days
  4. 21.8%14 days
  5. 36.6%30 days
  6. 58.9%60 days
This job: first seen 3 hours ago

Knowles median: 7 days open

The posting

Job Overview:

The CNC Machinist / Programmer produces precision-machined parts by programming, setting up, and operating CNC equipment. This role develops and edits CNC programs, interprets engineering drawings and GD&T requirements, verifies part quality, and follows established safety and production standards.

Duties & Responsibilities:

  • Review work orders, engineering drawings, CAD models, material specifications, machining requirements, and GD&T callouts to plan machining operations.
  • Create CNC programs for new parts and modify existing programs to meet drawing revisions and production requirements using Mastercam; use SolidWorks and CAD files as needed.
  • Set up, prove out, and operate CNC milling machines and lathes; verify programs, tooling, offsets, and work holding before production.
  • Set up and operate Wire EDM equipment as required.
  • Set up and operate manual mills and drill presses as required.
  • Select appropriate tools, fixtures, and machining sequences; adjust machine settings and troubleshoot machining or cutting issues within established procedures.
  • Align, locate, and secure workpieces using appropriate fixtures and work holding methods.
  • Install and adjust cutting tools appropriate to the material, part geometry, and operation.
  • Apply approved manufacturing methods, setup documentation, tooling standards, and production procedures.
  • Determine and adjust feeds, speeds, and depth of cut to achieve required dimensions, surface finish, and tool life.
  • Deburr and finish precision-machined parts according to engineering drawings and route sheets, maintaining required edge breaks and chamfers.
  • Inspect in-process and completed parts using appropriate measurement equipment, including calipers, micrometers, gauges, and comparators; document results as required.
  • Perform routine machine care and housekeeping to support equipment cleanliness, accuracy, and reliability; report equipment issues promptly.
  • Identify opportunities to improve safety, quality, cycle time, and workflow; recommend and support process improvements and lean initiatives.
  • Follow company policies and procedures, including safety requirements, and maintain a clean and orderly work area.
  • Review CAD files and use Mastercam to interpret geometry and extract dimensions needed for programming and machining.
  • Ensure finished parts are burr-free and free of machining or handling defects, including chatter, gouges, scratches, poor surface finish, embedded chips, and missing edge breaks or chamfers.
  • Verify completed setups and parts against the applicable drawings, specifications, and work instructions.
  • Perform other job-related duties as assigned

Qualifications & Skills:

  • High school diploma or equivalent.
  • At least 3 years of hands-on machining experience.
  • At least 1 year of CNC programming experience.
  • Experience with Mastercam 2018 or newer; ability to create and edit programs is required.
  • Associate degree, trade-school certificate, or equivalent technical training is preferred. Experience with composite materials is a plus.

Supervisory Responsibilities:

  • None

Work/Physical Requirements:

  • Ability to lift items weighing up to 50 pounds, with or without reasonable accommodation.
  • Ability to grasp, handle, and manipulate tools, parts, and measuring instruments.
  • Ability to coordinate movements and safely perform hands-on machine setup and operation.
  • Ability to stand for extended periods.
  • Reasonable accommodation may be made to enable individuals with disabilities to perform the essential functions.
  • Work is primarily performed in a manufacturing / machine-shop environment.
  • May be exposed to loud noise, moving machinery, and other typical machine-shop hazards.
  • Requires compliance with applicable machine guarding, PPE, and shop safety procedures.
  • May be exposed to machining fluids, metal chips, and other manufacturing contaminants.
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