CNC Machinist

CNC Machinist

The CNC Machinist supports Holtec's Manufacturing Operations by setting up and operating CNC machining equipment to produce high-precision components that meet strict engineering specifications and tolerance requirements. This role requires strong technical machining expertise, blueprint interpretation skills, and a commitment to quality and safety. The ideal candidate will work collaboratively with production, engineering, and quality teams to ensure efficient, accurate, and reliable machining operations in a high-spec manufacturing environment.

Location: East Pittsburgh, PA (Holtec Manufacturing Division)

Primary Responsibilities:

• Read and interpret CNC programs, blueprints, drawings, and work instructions
• Set up and operate CNC mills and lathes using approved programs, fixtures, and tooling
• Adjust machine settings to achieve required accuracy, tolerances, and surface finishes
• Load raw materials, verify alignment, and perform machine warm-up and safety checks
• Conduct in-process and first-article inspections; make adjustments prior to full production
• Use precision measuring tools (micrometers, calipers, bore gauges) to verify specifications
• Document inspection results and report defects or non-conformances
• Identify and resolve programming, machine, and tooling issues
• Optimize programs and machine parameters to improve efficiency and productivity
• Apply Geometric Dimensioning and Tolerancing (GD&T) to ensure machining accuracy
• Manage tooling, monitor tool wear, and select specialized tooling as required
• Review daily work assignments and production schedules
• Maintain accurate production, scrap, and rework records
• Ensure tools and equipment are calibrated, maintained, and properly stored
• Report mechanical issues or potential failures promptly
• Participate in continuous improvement activities and team meetings
• Follow all safety policies and procedures to maintain a safe work environment

Requirements:

• Two-year technical degree or completion of a relevant apprenticeship program required; equivalent experience and on-the-job training may be considered
• 3–5 years of professional CNC machining experience
• Experience operating and programming CNC machinery
• Ability to read and interpret blueprints, schematics, and technical drawings
• Proficiency using precision measurement and inspection equipment
• Ability to calculate dimensions and tolerances using mathematical principles
• Experience with Fanuc, Siemens 840D, and HAAS CNC controls preferred
• Strong understanding of material types and machining characteristics
• Ability to perform basic preventive maintenance on machines and tooling
• Experience troubleshooting and performing minor repairs on CNC equipment, including HAAS, FPT machining centers, VBM (Vertical Boring Mill), and Toshiba machines preferred
• Familiarity with quality standards and inspection requirements in a manufacturing environment

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