Senior CNC Programmer - 5-Axis Mastercam (Defense/Aerospace)

Raptor Scientific; Livermore (CA); On-site; USD 100,000 - 125,000; Full time

Job summary

Raptor Scientific's Livermore site is seeking an experienced CNC Mastercam programmer to develop, verify, and optimize control programs for multi-axis lathes, mills, and Swiss machines. You will read prints, set up machining sequences, and ensure adherence to GD&T and ISO/AS standards.

With 5+ years in aerospace/defense manufacturing, you will own programs from blueprint to finished part, train operators, and support production across our calibrated test systems.

Qualifications

• 5+ years CNC Mastercam programming experience in aerospace/defense.
• HS diploma or GED; associate degree or machining apprenticeship is a plus.
• Ability to read mechanical drawings, GD&T, and BOMs with precision.
• Proficiency in G-code, M-code; CAD/CAM software like Mastercam & SolidWorks.

Responsibilities

• Program CNC machines and optimize Mastercam programs for multi-axis lathes, mills, mill-turns, and Swiss machines.
• Validate programs via simulation and dry runs to ensure first-part success.
• Read prints, blueprints, and CAD models to build precise tool paths and machining strategies.
• Set machining sequences and prepare operation sheets for prototypes and production parts.
• Ensure programs meet safety, quality, GD&T, and ISO/AS requirements; stay current with revisions.
• Troubleshoot machining issues, select tooling, speeds/feeds, and train operators.

Skills

CNC Mastercam

GD&T proficiency

Blueprint literacy

Troubleshooting

Education

HS diploma or GED

Associate degree or machining apprenticeship

Tools

Mastercam

SolidWorks

Job description

Raptor Scientific's Livermore site is seeking an experienced CNC Mastercam programmer to develop, verify, and optimize control programs for multi-axis lathes, mills, and Swiss machines. You will read prints, set up machining sequences, and ensure adherence to GD&T and ISO/AS standards.

With 5+ years in aerospace/defense manufacturing, you will own programs from blueprint to finished part, train operators, and support production across our calibrated test systems.