Mastercam CNC Programming Specialist — Advanced Plastics & Composites

Shape precision from code: your day at Atlas Fibre

Step onto our Northbrook, IL production floor and turn complex CAD into flawless parts. As a Mastercam-focused CNC Programming Specialist, you’ll partner with machinists and engineers to transform composite laminates and high-performance plastics into high-tolerance components for a range of industries.

A day in the life

You’ll review CAD models, craft efficient toolpaths in Mastercam, and build robust setups. Throughout the day you’ll collaborate at the machine, validate strategies, and fine-tune tool selection and feeds/speeds. When a cycle time can be shaved or a tolerance gets tight, you jump in—optimizing code, troubleshooting in-process issues, and documenting best practices so the next run is even better.

What you will tackle

• Program CNC mills in Mastercam for intricate plastic and composite parts
• Engineer toolpaths, workholding, and machining strategies for accuracy and efficiency
• Translate CAD models, prints, and specs into production-ready NC code
• Apply GD&T to hit tight tolerances and validate part conformity
• Partner with machinists/engineers to problem-solve and elevate processes
• Produce clear setup sheets and work instructions
• Drive continuous improvement across programming and on-machine execution
• Reduce cycle times and resolve in-process issues quickly
  
  

What you bring Required

• 5 years of CNC programming experience (or equivalent hands-on background)
• Mastercam expertise (or comparable CAM proficiency)
• Confident programming from scratch directly from CAD
• Strong grasp of machining methods and tooling fundamentals
• Working knowledge of GD&T
• Comfort operating in a hands-on shop environment
  
  

Preferred (not required)

• Background machining plastics and/or composites
• Experience with Vericut (or similar simulation)
• Familiarity with Renishaw probing or machine calibration
• Macro programming and NC optimization exposure
• 4- and 5-axis programming experience
  
  

Why you’ll thrive here

• Make complex, high-precision parts with advanced materials
• Grow with a scaling operation and expanding capabilities
• See your programming directly influence production outcomes
• Advance your craft in high-end machining and process improvement
  
  

Compensation & benefits

• Salary: $75,000 – $110,000 (commensurate with experience/skill)
• 401(k) with company match
• Medical, dental, and life insurance
• Paid time off and company holidays (PTO is accrued)
• Ongoing training and development opportunities
  
  

Schedule & location

• Monday – Friday, day shift (8-hour shifts)
• On-site in Northbrook, IL
  
  

Tools & technologies

• CAM Software (Mastercam)
  
  

Compliance

This position may require access to export-controlled information subject to the International Traffic in Arms Regulations (ITAR) and/or Export Administration Regulations (EAR). Applicants must be authorized to access controlled information under U.S. export control laws and regulations.

You Should Be Proficient In

• ITAR Compliance
  
  

Equal Opportunity Employer

Atlas Fibre is an equal opportunity employer and is committed to building a diverse and inclusive workplace. All qualified applicants will receive consideration without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran status, or disability.

Additional Information

• Must be authorized to work in the U.S.
• This is an on-site position in a manufacturing environment