MACHINE SHOP MANAGER - CNC

Amtec Staffing; Santa Ana (CA); On-site; USD 90,000 - 130,000; Full time

Job summary

Amtec Staffing has a client seeking a Machine Shop Manager to own a six‑mill CNC shop for a space and defense manufacturer in Santa Ana, CA. The role blends hands‑on machining with leadership, including quoting, material planning, scheduling, and quality control.

You will guide programming, setups, tooling, inspection, and on‑time delivery while mentoring machinists and operators in a fast‑paced environment with composites and precision machining.

Qualifications

• 5+ years of machine shop management experience.
• Machining experience on manual and CNC equipment.
• Strong CAM programming and setup experience with Fusion 360 or Mastercam.
• Leadership, supervision, training, or mentoring in a shop.
• proficiency with GD&T, drawings, tooling, inspection practices.
• Experience with ISO 9001/AS9100 quality systems.
• Experience with ERP/MRP and precision measurement tools.

Responsibilities

• Take full ownership of end-to-end machine shop production; monitor KPIs and drive improvements across quality, throughput, cost, and delivery.
• Serve as the primary authority for shop operations — production planning, scheduling, capacity planning, resource allocation, and tooling.
• Review quote requests and build accurate labor, material, tooling, and machine-time estimates; assess manufacturability and risk.
• Select materials, tooling, fixtures, machining methods, and work holding for each job.
• Generate CAM toolpaths and G-code for 3-axis and 5-axis equipment.
• Set up and operate manual and CNC equipment as needed for complex parts.
• Ensure parts meet customer drawings, tolerances, and quality requirements.
• Maintain quality documentation in line with ISO 9001/AS9100.

Skills

Machine shop management

Manual & CNC machining

CAM programming

G-code generation

5-axis machining

Quoting & scheduling

GD&T

Engineering drawings

CMM inspection

ERP/MRP systems

Advanced Excel

ISO 9001/AS9100 knowledge

Leadership & mentoring

Tools

Fusion 360

Mastercam

ERP/MRP systems

Excel

Job description

• 5+ years of machine shop management experience
• Machining experience across manual and CNC equipment, including a CNC mill environment.
• Strong CAM programming and machine setup experience (Fusion 360, Mastercam, or equivalent), generating complex toolpaths and G-code for 3- and 5-axis work.
• Demonstrated ability to build and own quoting, material planning, and production scheduling.
• Proven experience assessing manufacturability and technical risk, developing accurate labor/material estimates, and making no-bid or alternate-solution calls.
• Prior leadership, supervisory, training, or mentoring experience in a machine shop.
• Strong command of GD&T, engineering drawings, machining methods, tooling, fixturing, work holding, and inspection practices.
• Proficiency with precision inspection equipment (calipers, micrometers, CMMs) and with ERP/MRP or job-tracking systems; advanced Excel.
• Familiarity with ISO 9001 and/or AS9100 quality systems — inspection, traceability, and documentation.

Our client is searching for a Machine Shop Manager to take full ownership of a six-mill CNC machine shop for a growing space & defense manufacturer that runs both composites and precision machining. This is a hands-on leadership role for an experienced machinist who is equally fluent in CAM programming, setups, quoting, and quality control. You will run the shop end to end — building quoting, material planning, and production scheduling; assessing manufacturability and technical risk; and driving execution across programming, setups, tooling, inspection, and on-time delivery — all while mentoring the next generation of machinists and operators.

Responsibilities:

• Take full ownership of end-to-end machine shop production; monitor KPIs and drive improvements across quality, throughput, cost, and delivery.
• Serve as the primary authority for shop operations — production planning, scheduling, capacity planning, resource allocation, and tooling.
• Review quote requests and build accurate labor, material, tooling, and machine-time estimates; assess manufacturability, technical risk, and no-bid or alternate-solution opportunities.
• Select the right materials, tooling, fixtures, machining methods, and work holding for each job.
• Generate CAM toolpaths and G-code for 3-axis and 5-axis indexed CNC equipment.
• Set up and operate manual and CNC equipment as needed — particularly for complex, high-tolerance, prototype, or production parts.
• Ensure parts are built to customer specifications, drawings, tolerances, and quality requirements.
• Perform and oversee in-process and final inspection using calipers, micrometers, CMMs, and other precision equipment; identify nonconformances and direct or perform rework.
• Maintain quality, traceability, inspection, and production documentation in line with ISO 9001 and AS9100.
• Identify, source, and procure tooling, fixtures, materials, and equipment.
• Own ERP configuration and transactions — work order releases, BOMs, routers, labor tracking, daily balancing, and quality records.
• Supervise, develop, and mentor machinists and CNC operators; build a culture of quality, accountability, safety, and continuous improvement.
• Keep the shop clean, organized, and safe, and partner with leadership on capability, capacity, throughput, automation, and cost-saving initiatives.