CNC Milling Machinists - Class B (2nd shift)

Granite State Manufacturing (GSM) is seeking skilled Class B CNC Milling Machinists to join our precision manufacturing team on first shift.

This position is ideal for experienced machinists who can perform independent setups, execute production runs, and contribute to mission-critical manufacturing supporting the U.S. Navy submarine program and other defense applications.

As a Class B CNC Milling Machinist, you’ll perform both setup and production machining across GSM’s fleet of advanced equipment, including Doosan DVF 5-Axis, Doosan DBC Horizontal Boring Mills, Soraluce FLP/FP-Series, Kuraki HBMs, Mazak Nexus 510C, Mori verticals, and YCM NXV 1680A platforms.

You’ll work closely with supervision and planning to execute jobs in accordance with the production schedule (IAW schedule), maintaining accuracy, efficiency, and quality on every part produced.

• Set up and operate CNC milling machines, horizontals, and boring mills for production.
• Interpret blueprints, process plans, and GD&T requirements.
• Verify part conformance using micrometers, calipers, and CMM or precision gauges.
• Collaborate with supervisors and planners to ensure workflow matches production priorities IAW schedule.
• Maintain detailed documentation and ensure traceability of parts and processes.
• Troubleshoot issues related to tooling, offsets, and material handling.
• Support and mentor Class C machinists in safe work and machining fundamentals.
• Contribute to a culture of safety, quality, and continuous improvement.

• 3–5 years of CNC milling experience in a production or job shop environment.
• Familiarity with Fanuc, Heidenhain, Mazatrol, or Siemens controls.
• Solid understanding of blueprint reading, GD&T, and part inspection methods.
• Proven ability to perform setups, operate independently, and meet quality standards.
• Strong work ethic, communication, and attention to detail.
• Commitment to safety and teamwork with a desire to advance to Class A.

• Opportunity to advance from Class B to Class A machining roles.
• Work on large, precision defense and naval components using world-class equipment.
• Competitive pay, comprehensive benefits, and long-term stability.
• Be part of a company that directly supports U.S. Navy submarine readiness and national security.