Milling Cell Supervisor

Granite State Manufacturing; Manchester (NH); On-site; USD 70,000 - 90,000; Full time

Benefits offered by this job

Paid time off

401(k)

Dental & Vision insurance (Company paid)

Flexible spending account

Job summary

Granite State Manufacturing is seeking a Milling Cell Supervisor to oversee CNC machining operations and lead the team qualification. The role requires a minimum of 5 years of CNC machining experience along with a strong supervisory background.

You will ensure compliance with industry standards, drive safety, and implement continuous improvement initiatives. Candidates should be skilled in CNC operations, team leadership, and process optimization. Benefits include competitive health insurance, retirement plans, and paid time off.

Qualifications

• 5+ years of CNC machining experience, including setup and operation of CNC Millings.
• Previous supervisory or team lead experience in a machining environment.
• Familiarity with AS9100, ISO 9001, and defense/aerospace quality standards.

Responsibilities

• Directly supervise Milling cell team members and assign daily work.
• Oversee daily operations of CNC Millings to ensure production goals are met.
• Ensure all work complies with AS9100, ISO 9001, NAVSEA, and customer requirements.

Skills

CNC machining

Team leadership

Problem-solving

Blueprint reading

Tools

ERP/MRP systems

Microsoft Office Suite

Job description

Position Summary

The Milling Cell Supervisor is responsible for overseeing the daily operations of the Milling machining cell, including Senior Class A, Class A, Class B, and Class C machinists. This role ensures the team meets production, quality, and safety standards while optimizing throughput and machine utilization. The Supervisor plays a critical role in scheduling, training, process compliance, and maintaining effective communication with both operators and leadership.

Essential Functions And Responsibilities

Team Leadership & Supervision

• Directly supervise Milling cell team members, including Senior Class A, Class A, Class B, and Class C machinists.
• Assign daily work, monitor performance, and ensure adherence to work instructions and drawings.
• Conduct employee performance reviews, weekly time approvals, and disciplinary actions in coordination with GSM policies and procedures.
• Provide mentorship and training to enhance skill development and cross‑training across levels.
• Work to reduce and eliminate barriers and obstacles to improve overall cost and scheduling performance.
• Your leadership is expected to make it easier for employees to make quality products and make it easier for customers to do business with GSM.

Production & Operations Management

• Oversee daily operations of CNC Millings, ensuring throughput meets production schedules.
• Monitor and drive productivity, minimizing downtime and idle hours.
• Ensure proper setup, operation, and maintenance of Millings to maximize efficiency and extend equipment life.
• Work with programming and planning teams to resolve issues impacting production flow.

Quality & Compliance

• Ensure all work complies with AS9100, ISO 9001, NAVSEA, and customer requirements.
• Partner with Quality Inspectors to address nonconformances, corrective actions, and continuous improvement efforts.
• Promote a culture of quality and accountability across the Milling cell.

Continuous Improvement

• Identify and implement Lean practices to improve workflow, reduce waste, and increase throughput.
• Monitor process performance and lead root cause/corrective action initiatives for recurring issues.
• Recommend tooling, fixturing, and process improvements to enhance productivity and quality.

Safety & Communication

• Champion a safe work environment and ensure compliance with all OSHA and GSM safety standards.
• Maintain effective communication with machinists, operations leadership, and other departments.
• Provide clear status updates on jobs, machine availability, and resource requirements.
• Demonstrate responsibility and accountability for creating a professional, safe, and clean environment evidenced by being at work on time, following the policies of Granite State Manufacturing, always wearing safety glasses in designated areas, maintaining a neat and orderly work area, and following safety practices to prevent errors.
• Demonstrate commitment to teamwork by establishing effective relationships and networks with both managers/directors and staff, collaborating with them to accomplish shared purposes and goals.
• Abide by GSM Code of Ethics and Business Conduct standards and strictly observe all U.S. and foreign laws and regulations.

Requirements

• 5+ years of CNC machining experience, including setup and operation of CNC Millings.
• Previous supervisory or team lead experience in a machining environment required.
• Strong knowledge of machining processes, tooling, G‑code, and blueprint reading.
• Familiarity with AS9100, ISO 9001, and defense/aerospace quality standards.
• Proficiency with ERP/MRP systems (e.g., M1) and Microsoft Office Suite.
• Strong problem‑solving, organizational, and communication skills.
• Ability to coach, mentor, and develop machinists across skill levels.

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.

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