Quality Inspector

Company Description

McCay Tool & Engineering is a St. Louis-based manufacturer, specializing in precision machining. Our mission is to provide quality parts to major aerospace companies, the U.S. Government, and their allies. Since 1950, we have proudly operated in St. Louis and are committed to setting ourselves apart from the competition, strategically positioning ourselves as the most reliable supplier.

Quality Inspector

We are seeking a detail-oriented Quality Inspector to join our aerospace manufacturing team. The ideal candidate will have a strong understanding of AS9100 standards and requirements, and will be responsible for performing first‑article, in‑process, receiving, and final inspections of precision parts and assemblies. The Quality Inspector plays a critical role in maintaining compliance, identifying nonconforming material, supporting root‑cause investigations, and documenting inspection results with accuracy and consistency.

• Perform layout inspections using surface plates, blocks, parallels, clamps, and precision measuring instruments (micrometers, calipers, height gauges).
• Conduct first‑article inspections (FAI), in‑process checks, receiving inspections, and final part inspections in accordance with engineering drawings and technical specifications.
• Interpret complex blueprints, specifications, and GD&T requirements.
• Identify, segregate, and document nonconforming material; initiate nonconformance reports (NCRs).
• Support Root Cause Analysis and implementation of Corrective and Preventive Actions (CAPA) in response to internal and external quality issues.
• Apply acceptance stamps to conforming products and ensure traceability.
• Perform in‑process audits to ensure compliance with AS9100 and internal procedures.
• Calibrate, verify, and maintain inspection and measuring equipment.
• Accurately complete and maintain inspection records and reports, including digital and paper formats.
• Verify measurement data recorded on SPC sheets.
• Collaborate with customer source inspectors during source inspection activities.

• High School diploma or equivalent required.
• Completion of technical/trade school or relevant vocational training preferred.
• Minimum of two years of experience in aerospace manufacturing inspection or a related quality control role.
• Proficient in reading engineering drawings and using inspection tools and equipment.
• Familiarity with AS9100 Quality Management System requirements.
• Working knowledge of GD&T (Geometric Dimensioning & Tolerancing).
• Detail‑oriented with excellent organizational and documentation skills.
• Effective communicator with the ability to work independently and in cross‑functional teams.
• Must be a U.S. Person in accordance with ITAR/EAR regulations (U.S. Citizen or U.S. Permanent Resident).

• Experience with Faro Arm for 3D inspection and measurement of parts and assemblies.
• CMM programming.

Work takes place in an office and shop floor environment; safety glasses are required, other personal protective equipment is generally not necessary. Employees may be required to lift 10–20 pounds on occasion. Overtime may be required to accommodate priorities and deadlines.

McCay Tool + Engineering, Inc is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, national origin, age, gender, religion, disability, sexual orientation, marital status, veteran status, gender identity or expression, or any other basis protected by local, state or federal law. Employment decisions will not be made on the basis of a person's national origin, race or immigration status except to the extent necessary to comply with the International Traffic in Arms Regulations (ITAR).

Positions at McCay Tool + Engineering, Inc require access to information or technology that is subject to the International Traffic in Arms Regulation (ITAR) and the Export Administration Regulations (EAR). These laws limit access rights for non‑U.S. Persons or other unauthorized individuals. Therefore, applicants may be required to provide proof of U.S. citizenship, U.S. permanent residence, or U.S. immigration status.

Pre‑employment background and drug screen required.

$25–$30 per hour