CNC Mastercam Programmer

Granite State Manufacturing • Manchester, NH

2d • Onsite

About The Position

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.

Requirements

• 5 years of Mastercam programming experience
• Strong experience with 5-axis simultaneous machining
• Experience with 3-axis mills, CNC lathes, and mill-turn equipment
• Deep understanding of feeds, speeds, tooling, and work holding
• Proficiency in reading blueprints and applying GD&T
• Experience working in a military, aerospace, or defense manufacturing environment preferred
• Ability to obtain or maintain required security clearance (if applicable)
• Advanced Mastercam proficiency (multi-axis toolpaths, dynamic milling, multi-surface programming)
• G-code knowledge and editing capability
• Fixture design input and setup strategy development
• Strong knowledge of tight-tolerance machining (±.0005” )
• Experience machining high-strength alloys (titanium, Inconel, hardened steels, aluminum alloys)

Nice To Haves

• Experience working in a military, aerospace, or defense manufacturing environment preferred

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

Benefits

• Paid time off
• Floating holidays
• Paid holidays
• 401(k)
• 401(k) company matching
• Dental & Vision insurance (Company paid)
• Employee assistance program
• Flexible spending account
• Competitive health insurance
• Health savings account
• Life insurance
• Referral program

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: No Education Listed
• Number of Employees: 11-50 employees