Quality Control Inspector – Manufacturing

Location: St. Louis / Kirkwood, MO

Job Type: Full-Time | Hourly

Position Summary

We are seeking an experienced Quality Control Inspector to inspect precision-machined and fabricated components to ensure compliance with engineering drawings, customer specifications, and established quality standards.

The ideal candidate will have a strong background in manufacturing inspection, precision measurement, blueprint interpretation, and a minimum of 2 years of hands-on Coordinate Measuring Machine (CMM) experience.

Key Responsibilities

• Perform first-article, in-process, and final inspections of manufactured components.

• Operate Coordinate Measuring Machines (CMMs) to verify dimensional accuracy and tolerances.

• Read and interpret engineering drawings, blueprints, and GD&T specifications.

• Inspect CNC-machined, fabricated, and assembled components.

• Use precision measuring instruments, including micrometers, calipers, height gauges, indicators, and optical comparators.

• Document inspection results and maintain accurate quality records.

• Identify and report nonconforming materials and dimensional discrepancies.

• Work closely with machinists, production personnel, and engineering to resolve quality issues.

• Follow ISO 9001 quality procedures and inspection requirements.

• Maintain inspection equipment and support calibration processes.

Required Qualifications

• Minimum 2 years of hands-on CMM experience — REQUIRED.

• Experience operating CMM equipment to inspect manufactured components and verify dimensional accuracy.

• Previous quality inspection experience in a machining or manufacturing environment.

• Strong ability to read and interpret blueprints and GD&T.

• Proficiency with micrometers, calipers, height gauges, and other precision measurement tools.

• Ability to document inspection findings and identify out-of-tolerance conditions.

• Strong attention to detail and problem-solving skills.

Preferred Qualifications

• Experience inspecting CNC-milled and turned components.

• CMM programming or program modification experience.

• Familiarity with ISO 9001 quality standards.

• Experience with first-article inspections and inspection documentation.

• Experience in a precision machining or job shop environment.

Important Requirement

Candidates must have at least 2 years of actual hands-on CMM experience. Experience using only handheld measuring tools, without CMM experience, will not meet the minimum qualifications.

You should be proficient in:

• GD&T
• Statistical process control (SPC)
• ISO 9001 Certification Experience
• First Article Inspection (FAI)
• Blueprint Reading
• Blueprint Reading & Engineering Drawings
• CNC Machining & Manufacturing Processes
• Coordinate Measuring Machines
• In-Process & Final Quality Inspection
• Metrology & Calibration
• Nonconformance Identification & Documentation
• Precision Measurement & Dimensional Inspection
• Quality Assurance & Quality Control
• Quality Inspection
• Precision Measurement

Machines & technologies you'll use:

• Optical Comparator
• Thread Gauges (GO/NO-GO)
• Coordinate Measuring Machine (CMM)
• - Inspection Reporting & Quality Documentation Software
• Bore Gauges
• Caliper
• CMM Software
• CNC Mills & Lathes
• Coordinate Measuring Machines
• Depth Micrometers
• Dial Indicators
• Digital & Dial Calipers
• Gauge Blocks & Surface Plates
• Height Gauge
• Height Gauges
• Indicator
• Inside & Outside Micrometers
• Manual & CNC CMM Equipment
• Micrometer
• Optical Comparators
• Surface Roughness Testers