Sr. CNC Mill Programmer

Company Summary:

Based in Southern California, our AS9100 & ITAR-registered turnkey manufacturing client is has a decades‐long legacy of delivering precision-engineered solutions across aerospace, defense, and other highly regulated sectors. Operating from a robust facility spanning over 100,000 sq ft, the company integrates advanced tooling, 5‐axis CNC milling and turning, finishing, and assembly—all performed under one roof.

Position Overview:

We are seeking an experienced CNC Programmer with advanced multi-axis machining expertise to support the development of high-precision components for the aerospace and defense sector. This role requires mastery of CAD/CAM programming (with emphasis on Mastercam), an ability to translate complex models into efficient machining processes, and a strong foundation in aerospace manufacturing standards.

Key Responsibilities:

• Create, edit, and optimize CNC programs for complex 3-, 4-, and true 5-axis milling operations using Mastercam and other CAD/CAM platforms (NX, CATIA, SolidWorks, etc.).
• Develop machining strategies for tight-tolerance aerospace parts, ensuring conformance with engineering specs and customer requirements.
• Generate toolpaths, setup sheets, and process documentation for multi-axis mills and supporting equipment.
• Interpret 3D CAD models, blueprints, and GD&T to identify machining features and requirements.
• Work alongside engineers, machinists, and quality teams to resolve technical challenges and improve manufacturability.
• Select tooling, fixtures, and machining parameters to maximize efficiency while protecting part integrity.
• Conduct prove-outs, test runs, and program adjustments to validate accuracy before full production release.
• Collaborate with inspection teams to verify that parts meet AS9100/aerospace standards through in-process and final measurement.
• Continuously improve programming methods to reduce cycle times, tool wear, and overall manufacturing costs.
• Maintain clear documentation of programs, revisions, and process improvements.

Qualifications:

• Minimum of 8 years of CNC programming experience, with a strong emphasis on 5-axis/multi-axis milling in a precision manufacturing environment.
• Extensive hands-on experience with Mastercam; additional exposure to Siemens NX or CATIA is a plus.
• Proficiency in G-code/M-code programming, probing cycles, and in-process inspection strategies.
• Strong background working with aerospace alloys and advanced materials.
• Demonstrated ability to interpret complex drawings and CAD data, including GD&T.
• Familiarity with aerospace quality systems and standards (AS9100, FAA, or defense-related compliance).
• Strong problem-solving skills, with the ability to adapt to challenging part geometries and material conditions.
• Effective communicator who can collaborate across engineering, programming, and shop floor teams.

Preferred Criteria:

• Certifications in CNC programming/machining (NIMS, FANUC, etc.).
• Direct experience programming simultaneous 5-axis and probing cycles on Doosan, Haas UMC series, Brother, or comparable platforms.
• Exposure to lean manufacturing practices and process improvement initiatives.