CNC Programmer - Level 3

Northrop Grumman • Commerce, CA

3d • $66,600 - $111,000 • Onsite

About The Position

Northrop Grumman’s Space Sector is hiring a CNC Programmer 3 at its Commerce, California site. This specialized role converts complex 3D engineering designs into numerical code for multi-axis machining centers, using CAD/CAM software to produce aerospace components from materials such as titanium, Inconel, and aluminum alloys while maintaining very tight tolerances.

The position develops and verifies NC programs for multi-axis mills, lathes, and mill-turn machines; analyzes CAD models and blueprints to determine machining sequences and work-holding strategies; and supports production through setup documentation, shop-floor troubleshooting, prove-outs, and operator mentoring. The team works a 9/80 schedule.

Requirements

• High school diploma or GED and at least 4 years of experience developing CNC programs for multi-axis machines in an aerospace environment.
• Deep knowledge of CAD software such as AutoCAD or SolidWorks and CAM software such as Mastercam or Gibbs CAM.
• Expert ability to interpret complex technical drawings and GD&T symbols.
• Strong foundation in trigonometry and geometry for calculating cutting paths and angles.
• Deep understanding of G-code, M-code, and post-processing.
• Expertise in machining aerospace alloys, including titanium, Inconel, and aluminum.

Nice To Haves

• Familiarity with AS9100 standards and export control regulations (ITAR/EAR).
• An associate’s degree in a mechanical or machining-related curriculum, or 6 years of machining and programming experience.

Responsibilities

• Create toolpaths and complete NC programs for 3-, 4-, and 5-axis milling, lathe, and mill-turn machines using CAD/CAM software, including CATIA V5/V6.
• Analyze 3D CAD models and blueprints to determine efficient machining sequences and work-holding strategies.
• Design custom fixtures and jigs in CAD to secure aerospace components during machining.
• Simulate and verify machine programs before production to ensure toolpaths are error-free.
• Research and refine tools, methods, and programs to reduce cycle times, improve tool life and part quality, and support cost-effective manufacturing.
• Create setup sheets and tool lists for machinists.
• Troubleshoot programming issues during setup, perform production-floor prove-outs, and mentor machine operators.

Benefits

• Health insurance coverage
• Life insurance
• Disability insurance
• Savings plan
• Company-paid holidays
• Paid time off (PTO) for vacation and/or personal business
• Employees may be eligible for overtime, shift differential, and a discretionary bonus, depending on the position.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: High school or GED