Mastercam CNC Programmer -Axis Defense Precision

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Manchester, New Hampshire, United States

Apr 1, 2026

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

QUALIFICATIONS, SKILLS, AND ABILITIES

• 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)

Technical Skills

• 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)
• High-paced, deadline-driven military manufacturing environment
• Strict adherence to quality, documentation, and compliance standards
• Team-oriented shop floor with cross-functional collaboration
• Emphasis on precision, repeatability, and mission-critical reliability
• Strong problem-solving and analytical skills
• Attention to detail and quality-focused mindset
• Ability to prioritize and manage multiple jobs simultaneously
• Effective communication with production and engineering teams
• Commitment to safety and continuous improvement

EEO STATEMENT

Granite State Manufacturing (GSM) is an equal opportunity employer. GSM does not discriminate on the basis of race, color, religion, sex, gender, gender identity or expression, national origin, citizenship, veteran status, age, physical or mental disability, genetic information, marital status, sexual orientation, or any other consideration made unlawful by applicable federal, state, or local laws in its programs, activities, or employment.

• 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

Precision manufacturing for every submarine in the U.S. Navy fleet.

Granite State Manufacturing is a specialized contract manufacturer offering complete in-house capabilities, including machining, welding, and assembly for performance-critical equipment, primarily for the US Navy.

Defense and Space Manufacturing Transportation Equipment Manufacturing Manufacturing

Company size 51–200 employees

Company type Privately held Founded 1937

Total funding 0

Momentum

113 employees on Linked In

Sep 21 Jan 26

Employee experience

3.1

10 reviews

56% would recommend

Culture & values

Culture & values 2.8

Work-life balance

Work-life balance 2.8

Career opportunities

Career opportunities 3.5

Compensation & benefits 2.9

Capital

Footprint