Lathe and Mill Supervisors

Job Description

Job Description

Granite State Manufacturing (GSM) is seeking two motivated professionals to join our leadership team on first shift; one to lead our Lathe Cell and one to lead our Milling Cell.

These roles are ideal for experienced CNC Machinists or Leads ready to step into a supervisory position. You’ll lead teams producing precision, large-scale components for the U.S. Navy submarine program and other mission-critical defense applications.

About the Opportunity :

As a Lathe or Mill Supervisor, you’ll oversee daily machining operations in your assigned cell, coordinating workflow, mentoring machinists, and ensuring safety, quality, and schedule adherence. You’ll partner with Planning to dispatch work in accordance with the schedule and drive throughput across a diverse mix of manual and CNC platforms, including Doosan VTLs, Doosan HBMs (DBC series), Doosan 5-Axis (DVF series), and Mazak and Mori verticals.

Key Responsibilities :

• Lead day-to-day operations in the assigned Lathe or Mill machining cell.
• Partner with Planning to schedule and release jobs IAW production plans.
• Review, verify, and approve weekly payroll for assigned team members.
• Provide technical guidance on setups, tooling, and process optimization for large and precision components.
• Verify first-piece quality and ensure all work meets AS9100, NAVSEA, and customer contract requirements.
• Develop machinists through mentoring, cross-training, and skill certification.
• Promote a culture of safety, discipline, and continuous improvement.
• Collaborate with Quality, Engineering, and Production Control to resolve technical and scheduling challenges.

Requirements

Qualifications :

Benefits

Why Join GSM :