CNC Boring Bar Operator

JR Metal Works LLC•Town of West Kewaunee, WI

About The Position

The Entry-Level CNC Boring Bar Operator works within the Heavy Fabrication Department to machine large welded assemblies and metal components to engineering specifications and quality standards. The position primarily operates a large CNC boring bar and requires interpreting shop drawings, following manufacturing procedures, and safely handling heavy materials. Manufacturing experience and mechanical aptitude are important, but previous CNC or boring bar experience is not required. Hands-on training is provided, with an emphasis on safety, accuracy, quality, and continuous improvement. The machine has X-axis travel of 120 inches, Y-axis travel of 100 inches, Z-axis travel of 60 inches, W-axis travel of 25 inches, and a full-rotary-capability table. Its large working envelope is used for machining substantial metal components and welded assemblies. Employees must learn to work safely around large workpieces and follow required procedures for setup, positioning, material handling, and machining. JR Metal Works supports long-term career development through a Position Information Sheet (PIS) that outlines role expectations, skill milestones, and growth pathways. These sheets provide transparency into performance- and merit-based pay progression, skill and responsibility milestones, leadership development, cross-training and internal advancement, and training, certification, and professional development expectations. Advancement is based on demonstrated performance, skill mastery, accountability, and alignment with company values. Duties may change, and employment is at-will. JR Metal Works is an Equal Opportunity Employer and provides reasonable accommodations to qualified individuals with disabilities in accordance with applicable laws.

Requirements

Ability to read and interpret shop drawings, blueprints, or technical documents.
Basic mechanical aptitude and willingness to learn CNC machining and boring bar operations.
Ability to follow written and verbal instructions, established procedures, and safety requirements.
Strong attention to detail and commitment to producing quality work.
Reliable attendance, willingness to learn, and ability to work effectively as part of a team.

Nice To Haves

Previous experience in a manufacturing or industrial environment.
Familiarity with measuring tools such as tape measures, calipers, or other dimensional inspection equipment.
Previous experience with rigging, overhead cranes, or handling large metal components.
Previous CNC machining or boring bar experience; this experience is a plus but is not required.

Responsibilities

Operate and learn to operate a large CNC boring bar to machine heavy metal components and welded assemblies according to shop drawings and job specifications.
Read and interpret shop drawings, blueprints, and work instructions to understand machining requirements and dimensional specifications.
Prepare workpieces and assist with positioning, securing, and aligning large components for machining.
Assist with material handling and rigging activities, following approved procedures and safety requirements.
Monitor machining operations and identify potential quality issues, equipment concerns, or deviations from specifications.
Use measuring tools and inspection methods to verify dimensions and ensure finished work meets quality requirements.
Follow established setup procedures, machining instructions, and production processes to maintain consistent results.
Maintain a clean, organized, and safe work area while following applicable safety procedures.
Collaborate with Heavy Fabrication team members, supervisors, and other departments to support production schedules and on-time delivery.
Participate in training and cross-training to build machining knowledge, equipment proficiency, and manufacturing skills.
Comply with company policies, safety procedures, and applicable federal, state, and local regulations.