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Key Responsibilities and Required Skills for CNC Manufacturing Supervisor

💰 $ - $

ManufacturingCNCSupervisoryEngineering

🎯 Role Definition

The CNC Manufacturing Supervisor leads day-to-day shop floor operations for CNC machining centers and related processes. This role is responsible for supervising CNC operators and programmers, ensuring on-time production, maintaining quality and safety standards, driving continuous improvement (Lean/Kaizen), and collaborating with engineering, quality, and maintenance to sustain efficient, compliant manufacturing. Ideal candidates combine hands-on CNC experience (programming, setup, troubleshooting) with proven leadership, metrics-driven decision making, and strong communication skills.


📈 Career Progression

Typical Career Path

Entry Point From:

  • Senior CNC Operator / Lead Machinist
  • CNC Programmer / Setup Technician
  • Production Team Lead (Machine Shop)

Advancement To:

  • Manufacturing Manager / Operations Manager
  • Production Director / Plant Manager
  • Continuous Improvement Manager

Lateral Moves:

  • Process Engineer (CNC Process Development)
  • Quality Engineer (Metrology / Inspection)
  • Tooling & Fixture Design Lead

Core Responsibilities

Primary Functions

  • Supervise, coach and develop a team of CNC operators, setup technicians and programmers; assign daily workloads, monitor productivity, and conduct regular performance reviews to meet production targets.
  • Plan and coordinate shift schedules, machine loading and operator assignments to ensure on-time delivery and balanced utilization of CNC centers.
  • Review and validate CNC programs (G-code) and tool lists before production; collaborate with programmers to optimize cycle times and material usage.
  • Approve and oversee part setups, tooling selection, fixturing, and runoffs; ensure first-article inspections and initial sample verification meet engineering specifications.
  • Interpret engineering drawings and GD&T requirements; ensure operators consistently follow work instructions, routings, and control plans.
  • Implement and maintain quality control processes including in-process inspection, SPC data collection, CMM measurement routines, and containment for nonconforming parts.
  • Lead root cause analysis (5 Whys, Fishbone) and corrective action processes for recurring quality or production issues; document findings and preventive controls.
  • Maintain machine capability studies and process capability (Cp/Cpk) metrics; work to continuously improve process stability and reduce variation.
  • Drive lean manufacturing and continuous improvement initiatives (Kaizen events, 5S, SMED) to reduce setup times, eliminate waste and improve throughput.
  • Oversee preventive maintenance schedules and coordinate with maintenance technicians to minimize unplanned downtime and maintain spindle, servo, and coolant system health.
  • Manage tooling and consumables inventory, order critical tools, monitor tool life, and implement tool-management strategies to control costs.
  • Enforce safety policies, lockout/tagout procedures, and environmental regulations; conduct safety meetings, training, and incident investigations as needed.
  • Maintain accurate production documentation including job travelers, router cards, inspection records, SPC charts, and electronic manufacturing records in the ERP/MRP system.
  • Collaborate with engineering and process development to qualify new parts, scale production, and address manufacturability improvements (DFM feedback).
  • Monitor shop floor KPIs such as OEE, yield, scrap rate, on-time delivery, and labor efficiency; prepare and present performance reports to management.
  • Train new hires and upskill existing staff on CNC best practices, machine controls (Fanuc, Siemens, Heidenhain), and CAD/CAM fundamentals (Mastercam, Fusion 360, SolidWorks).
  • Approve and control process changes, work with quality to update PFMEA, control plans, and SOPs when new tools, programs or materials are introduced.
  • Coordinate with purchasing and vendors for outside services (heat treat, plating, subcontract machining) and evaluate external supplier performance.
  • Respond to customer quality concerns, support supplier audits, and assist sales/engineering in technical reviews or emergency production needs.
  • Manage labor and overtime budgets for assigned area; recommend staffing adjustments and capital investments to meet production demand and cost targets.
  • Ensure compliance with ISO 9001 / AS9100 (where applicable) documentation requirements and participate in internal and external quality audits.
  • Troubleshoot complex machining issues including chatter, tool breakage, dimensional drift and surface finish problems; implement corrective machining parameters and tooling solutions.
  • Lead changeover and process optimization projects, documenting standard work, and implementing visual management on the shop floor to increase predictability.

Secondary Functions

  • Support cross-functional projects (NPI, prototype runs) by allocating shop resources and advising on machining strategies.
  • Mentor and develop a succession pipeline for operator and lead positions; coordinate technical training programs with HR and external trainers.
  • Assist in capital equipment evaluations by providing shop-floor input on ROI, throughput improvements and tooling requirements.
  • Participate in continuous improvement steering committees and contribute data-driven recommendations for plant-level initiatives.
  • Interface with IT/Systems teams to improve ERP/MRP integration, production reporting, and manufacturing data collection systems.

Required Skills & Competencies

Hard Skills (Technical)

  • Expert knowledge of CNC machining processes: milling, turning, multi-axis machining, Swiss-type turning.
  • CNC programming and verification experience (G-code, conversational programming) and familiarity with CAM systems (Mastercam, Fusion 360, GibbsCAM).
  • Proficiency with Fanuc, Siemens or Heidenhain controls; ability to troubleshoot control and servo issues on the shop floor.
  • Strong blueprint reading skills including Geometric Dimensioning & Tolerancing (GD&T).
  • Experience with metrology tools and inspection equipment: CMM programming/operation, micrometers, calipers, height gauges, surface finish testers.
  • Statistical Process Control (SPC), process capability analysis (Cp/Cpk) and familiarity with quality systems such as ISO 9001 / AS9100.
  • Knowledge of tooling, fixture design, tool offsets, cutter selection and tool life management.
  • Preventive maintenance planning and basic mechanical/electrical troubleshooting skills for machine tools.
  • Proficient with ERP/MRP systems (e.g., SAP, Epicor, NetSuite) for shop orders, inventory and production reporting.
  • Lean manufacturing tools: 5S, Kaizen, SMED, value stream mapping and root cause analysis methodologies.
  • Experience with production scheduling, capacity planning and managing labor on a multi-shift manufacturing environment.
  • Familiarity with materials and processes (aluminum, stainless steel, titanium, heat treatment, coatings) relevant to precision machining.

Soft Skills

  • Strong leadership and people management: coaching, conflict resolution, and performance development.
  • Excellent verbal and written communication for cross-functional collaboration and vendor/customer interactions.
  • Analytical and data-driven decision-making with a focus on metrics and continuous improvement.
  • Problem-solving mindset with persistence in following through corrective actions.
  • Time management and prioritization skills in a fast-paced, deadline-driven environment.
  • Attention to detail and a quality-first mindset.
  • Adaptability to changing priorities and manufacturing schedules.
  • Coaching and mentoring ability to develop technical competence within the team.
  • Accountability and integrity in enforcing safety and compliance standards.

Education & Experience

Educational Background

Minimum Education:

  • High school diploma or GED with vocational/technical training in CNC machining or manufacturing technology.

Preferred Education:

  • Associate degree or higher in Manufacturing Technology, Mechanical Engineering Technology, Industrial Technology, or related field.
  • Relevant certifications (CNC, Lean, Six Sigma Green Belt, ISO Lead Auditor) are a strong advantage.

Relevant Fields of Study:

  • CNC Technology / Machining
  • Mechanical Engineering Technology
  • Industrial Engineering / Manufacturing Engineering
  • Precision Machining / Tooling & Fixture Design

Experience Requirements

Typical Experience Range:

  • 5+ years in CNC machining roles with progressive responsibility; 2+ years in a lead or supervisory capacity preferred.

Preferred:

  • 7+ years of hands-on CNC experience, demonstrated experience with multi-axis machining, programming and process development.
  • Prior experience supervising multi-shift teams, managing production KPIs and implementing Lean/continuous improvement projects.