CNC Machinist - Junior

Position Overview

The CNC Machinist - Junior is responsible for setting up and operating CNC vertical machining centers and the full range of machine tools found in a well-equipped prototype development shop. This role includes working from CAM programmer-provided programs, blueprints, mechanical drawings, verbal instructions, and sketches to support machining, fixture development, dimensional accuracy, and safe shop operations.

Key Responsibilities

• Determine and perform appropriate setup of CNC vertical machining centers for programs provided by CAM programmers.
• Set up and operate the full range of machine tools found in a well-equipped prototype development shop.
• Use knowledge of G and M codes to program at the control to build fixtures and edit CAM-generated programs.
• Select appropriate cutters and tool holders.
• Work from verbal instructions and sketches.
• Perform machine shop math and trigonometry.
• Fixture Development and Technical Interpretation
• Design and build fixtures.
• Read blueprints and mechanical drawings.
• Apply knowledge of Mil-Spec and GD&T specifications.
• Use CAM and solid modeling CAD experience.
• Maintenance of Dimensional Accuracy and Measurement
• Maintain dimensional accuracy to specified tolerances that may be less than +/- .001" during machining processes.
• Use measuring instruments such as: Vernier calipers, Inside, Outside, and Depth Micrometers, Gage Blocks, Surface and Height Gages, Dial Indicators.
• Safety and Equipment Support
• Adhere to safety protocols.
• Operate a forklift.
• Lift and maneuver objects weighing up to 80 pounds.
• Work independently with minimal supervision.

Qualifications

• Successful completion of machinist apprenticeship.
• Journeyman CNC Machinist qualification.
• Trade school certificate.
• High school diploma or equivalent.

Skills

• Knowledge of G and M codes.
• Ability to program at the control to build fixtures and edit CAM-generated programs.
• Ability to select appropriate cutters and tool holders.
• Ability to read blueprints and mechanical drawings.
• Knowledge of Mil-Spec and GD&T specifications.
• Ability to work from verbal instructions and sketches.
• Ability to perform machine shop math and trigonometry.
• Ability to work independently with minimal supervision.
• Knowledge of shop, facility, and division safety policies and requirements.

Clearance

DoD Secret Clearance or capability to be granted DoD Secret Clearance.

Working Conditions

• Frequent indoor and outdoor work.
• Exposure to cold weather.
• Exposure to hot sun.
• Exposure to environments requiring ventilation or respirators.
• Regularly works in industrial and test facility environments, including cranes, fork trucks, and vehicle operations.

Hazardous Duty

• Incumbent performs work in industrial settings where the potential for hazards exists.
• Exposure to noise, electrical shock, wet surfaces, climbing, hazardous materials (including various oils and solvents), and high work and confined spaces.