CNC Mastercam Programmer

Granite State Manufacturing is a leading contract manufacturer of large, complex, precision machined and welded components, supporting the US Navy in building submarines.

We specialize in high-mix, low-to-medium volume production, delivering precision, quality, and on-time performance on custom-engineered products. Our capabilities include:

• Large-format CNC machining
• Heavy fabrication and welding (MIG, TIG, FCAW, SAW)
• Assembly, inspection, and testing
• Program management for complex builds

We are known for handling tight tolerances, complex geometries, and demanding customer specifications.

Our work environment is supportive, providing what our people need to do great work.

POSITION SUMMARY

We are seeking an experienced CNC Programmer / Mastercam Programmer with 10+ years of machining experience and 5+ years of Mastercam programming experience to support high-precision manufacturing operations in a fast-paced military production environment. This role requires expertise in multi-axis machining, strong technical problem-solving skills, and the ability to produce mission-critical components with strict quality and compliance standards.

ESSENTIAL FUNCTIONS AND RESPONSIBILITIES

• Program 3-axis, 4-axis, and 5-axis CNC milling machines using Mastercam
• Program CNC lathes and mill-turn machines
• Develop, optimize, and troubleshoot complex toolpaths for tight-tolerance parts
• Interpret and work from complex blueprints, GD&T, and military specifications
• Set up and prove out new programs on the shop floor
• Select appropriate tooling, fixtures, and cutting strategies for high-efficiency machining
• Collaborate with engineers, machinists, and quality control personnel
• Maintain program documentation and revision control
• Improve cycle times while maintaining quality and safety standards
• Support continuous improvement initiatives in a high-mix, low-volume environment