Sr Technician - CNC Machinist

Job Title:                          Sr Technician

OC Business Title:          Sr Technician - CNC Machinist

Location                           West Chicago, IL

Hours:                               Full-Time / Mon – Fri / 40 hours per week (Occasional overtime)

Revision Date:                 8/8/2025

The CNC Machinist provides advanced machining and programming expertise to support die and mold fabrication within the Tooling Department. This role ensures efficient setup, operation, and programming of CNC machinery, while maintaining high standards of safety, quality, and throughput. The machinist will lead shift operations, mentor junior machinists, and drive continuous improvement in machining processes and tooling design.

Reports to:  Tooling Leader

Span of Control:  Individual Contributor

Living Safely

• Adheres to all BJA and OC safety protocols and policies.
• Maintains a clean and organized work environment.
• Actively participates in safety meetings and promotes a culture of safety.

Machining Operations & Programming

• Setup and operate CNC milling machines (Okuma, Nidec, Haas, Toyoda, and manual equipment).
• Program CNC machines using G/M code based on customer drawings and specifications.
• Evaluate and optimize machine feeds, speeds, and cutting tools to improve throughput and reduce costs.
• Perform part inspections using micrometers, calipers, height indicators, and other precision tools.
• Make mechanical and/or program adjustments to ensure parts meet quality standards.

Tooling Design & CAD

• Utilize Autodesk software to view 2D and 3D CAD drawings.
• Analyze drawings and design data to determine correct dimensions, tool selection, and machining parameters.

Team Leadership & Workflow Management

• Monitor daily activities of crew members, ensuring productivity and team cooperation.
• Adjust work assignments to maintain effective workflow and meet production schedules.
• Serve as the primary training resource for less experienced machinists.
• Fill in on equipment as needed to maintain schedule adherence.

MINIMUM QUALIFICATIONS

• High school diploma or equivalent.
• 5+ years of experience in machine shop and CNC mill operations.
• Proficient in G-code and M-code programming.
• Strong understanding of manufacturing practices and tooling selection.
• Skilled in using precision measuring equipment to inspect parts within ±0.002” tolerances.
• Basic proficiency in mathematics and general computing.

PREFERRED EXPERIENCE

• 2–5 years of programming experience using MasterCAM and AutoCAD.
• Trade school, associate degree, or certificate in a related field.
• Strong communication, decision-making, and motivational skills.

KNOWLEDGE, SKILLS & ABILITIES

• Demonstrated ability to lead and mentor team members.
• Strong analytical and problem-solving skills.
• Ability to work independently and collaboratively in a fast-paced environment.
• Commitment to continuous improvement and innovation in machining processes.

The minimum annual base salary for this position is $70,000 + bonus + benefits. Base pay may increase depending on job-related knowledge, skills and experience. This information is specific to the state of IL and may not be applicable to other areas.

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Owens Corning is a residential and commercial building products leader committed to building a sustainable future through material innovation. Our products provide durable, sustainable, energy-efficient solutions that leverage our unique capabilities and market-leading positions to help our customers win and grow. We are global in scope, human in scale with more than 25,000 employees in 31 countries dedicated to generating value for our customers and shareholders and making a difference in the communities where we work and live. Founded in 1938 and based in Toledo, Ohio, USA, Owens Corning posted 2024 sales of $11.0 billion. For more information, visit www.owenscorning.com.

About Owens Corning  

Owens Corning is a residential and commercial building products leader committed to building a sustainable future through material innovation. Our products provide durable, sustainable, energy-efficient solutions that leverage our unique capabilities and market-leading positions to help our customers win and grow. We are global in scope, human in scale with more than 25,000 employees in 31 countries dedicated to generating value for our customers and shareholders and making a difference in the communities where we work and live. Founded in 1938 and based in Toledo, Ohio, USA, Owens Corning posted 2024 sales of $11.0 billion. For more information, visit www.owenscorning.com. 

Owens Corning is an equal opportunity employer. Except in limited circumstances such as formal apprenticeship programs, Owens Corning does not employ anyone under the age of 18.