Aerospace CNC Programmer - Mastercam 3-5 Axis

Lamsco West, Inc.; Santa Clarita (CA); On-site; USD 80,000 - 110,000; Full time

Job summary

Lamsco West, Inc. is seeking a highly skilled CNC Programmer to develop, test, and optimize CNC programs for 3-, 4-, and 5-axis machining centers using Mastercam.

You will create efficient processes for aerospace components, tooling, and fixtures, collaborating with Production, Engineering, and Quality teams to meet strict drawings and quality standards. Responsibilities include toolpath creation, setup documentation, post-processor validation, and on-machine proofing.

Qualifications

• Minimum of three years of CNC programming experience using Mastercam.
• Experience with 3, 4, and 5-axis machining.
• Strong reading of engineering drawings and GD&T.

Responsibilities

• Create and maintain CNC programs using Mastercam 2025/2026 for 3, 4, and 5-axis machining.
• Develop machining methods, operation sequences, and toolpaths from drawings and specs.
• Design or support workholding fixtures, tooling, and manufacturing aids.
• Select cutting tools, holders, workholding methods, feeds and speeds.
• Create setup documentation including sheets, tooling lists, offsets, and instructions.
• Read and interpret drawings, specs, and GD&T requirements.
• Generate and validate G-code and M-code using post-processors.
• Manually edit CNC programs to support setup and troubleshooting.
• Test, simulate, prove out, and troubleshoot new or revised programs at the machine.
• Work with machinists and Quality during first-piece and first-article inspection.
• Verify CNC programs and revisions are identified and controlled.
• Troubleshoot dimensional, tooling, surface-finish, and machine-performance issues.
• Optimize programs to improve cycle time, tool life, and productivity.
• Review designs for manufacturability improvements.

Skills

Mastercam

G-code

M-code

GD&T

3-axis CNC

4-axis CNC

5-axis CNC

setup documentation

toolpaths

post-processors

inspection

Tools

Mastercam

SAP

Job description

Lamsco West, Inc. is seeking a highly skilled CNC Programmer to develop, test, and optimize CNC programs for 3-, 4-, and 5-axis machining centers using Mastercam.

You will create efficient processes for aerospace components, tooling, and fixtures, collaborating with Production, Engineering, and Quality teams to meet strict drawings and quality standards. Responsibilities include toolpath creation, setup documentation, post-processor validation, and on-machine proofing.