CNC Mill Machinist II

Job Description

Job Description

We are seeking an experienced CNC Machinist / Programmer to support precision fabrication within a semiconductor manufacturing environment.

This role combines CNC programming, machining, and weld shop support , producing high-precision components, fixtures, tooling, and weld-prep features used in semiconductor gas delivery systems. The ideal candidate is highly proficient with Autodesk Fusion 360 CAM , understands tight-tolerance machining, and can work closely with fabrication and welding teams to improve quality, fit-up, and production efficiency.

Key Responsibilities

CNC Programming & Setup

• Develop, modify, and optimize CNC programs using Autodesk Fusion 360 CAM
• Create toolpaths for milling, drilling, facing, contouring, pocketing, and related machining operations
• Simulate and verify programs prior to production
• Select appropriate tooling, feeds, speeds, and machining parameters
• Maintain CNC program revisions and supporting documentation
• Set up and operate CNC mills and/or lathes

Precision Machining

• Machine components from 304/316L stainless steel, aluminum, and specialty alloys
• Perform first-piece and first-article inspections
• Adjust offsets, tooling, and machining parameters to maintain dimensional accuracy
• Produce tight-tolerance components and precision sealing surfaces
• Machine weld-prep features including bevels, grooves, and fit-up surfaces
• Support rework and repair machining as required

Weld Shop & Fabrication Support

• Produce fixtures, jigs, and tooling used in TIG and orbital welding
• Partner with welders and fabrication teams to improve fit-up and reduce distortion
• Support machining requirements for UHP/high-purity gas delivery systems
• Identify opportunities to improve throughput and repeatability

Quality & Compliance

• Read and interpret engineering drawings, blueprints, GD&T, and specifications
• Verify dimensional tolerances and surface finish requirements
• Use precision measuring equipment including calipers, micrometers, and height gauges
• Maintain material and work-order traceability
• Follow applicable ISO 9001 and customer-specific quality requirements

Continuous Improvement & Safety

• Identify opportunities to reduce setup time, scrap, unnecessary motion, and other process waste
• Participate in Kaizen and continuous-improvement initiatives
• Standardize tooling, setups, and programming practices
• Support SQDC objectives: Safety, Quality, Delivery, and Cost
• Maintain a clean and organized work area in accordance with 5S standards
• Follow all CNC equipment, tooling, cutting-fluid, and material-handling safety procedures

Required Qualifications

• 3+ years of CNC machining experience , preferably with CNC mills
• 2+ years of Autodesk Fusion 360 CAM programming experience
• Strong knowledge of G-code and CNC machining fundamentals
• Experience machining stainless steel and other tight-tolerance materials
• Ability to independently set up and operate CNC equipment
• Strong blueprint-reading and GD&T knowledge
• Proficiency with precision measuring and inspection equipment

Preferred Qualifications

• Experience in a welding, fabrication, or weld-shop environment
• Knowledge of weld preparation and fixture/jig design
• Semiconductor, UHP, high-purity, or gas-delivery-system manufacturing experience
• Multi-axis CNC machining experience (3+ axis )
• CAD modeling experience using Fusion 360
• Experience machining components for TIG or orbital welding applications

Skills & Competencies

• Strong attention to detail and a precision-first mindset
• Ability to consistently hold tight tolerances and maintain repeatability
• Strong mechanical aptitude and troubleshooting ability
• Effective problem-solving and root-cause-analysis skills
• Ability to collaborate with machinists, welders, engineers, and production personnel
• Commitment to quality, safety, and continuous improvement