CNC Machinist - Mastercam Programmer

RIM Recruitment Professionals; Chicago (IL); On-site; USD 41,000 - 55,000; Full time

Benefits offered by this job

Medical, vision, and optional dental

Two weeks paid time off

Paid major holidays

Annual bonus and profit-sharing

On-site parking

Job summary

RIM Recruitment Professionals seeks a CNC Boring Mill Machinist – Programmer in the Chicago area. The role focuses on operating CNC Horizontal or Vertical Boring Mills and developing programs for large, custom components with strong Mastercam proficiency.

You will read blueprints, set up tooling and workholding, and ensure parts meet engineering specs. The schedule is Mon-Fri with potential overtime; pay ranges from $30–$40 per hour with benefits and on-site parking.

Qualifications

• Experience operating CNC boring mills (horizontal/vertical) on large components.
• Proficient in G-code or M-code programming and interpretation.
• Strong Mastercam CAD/CAM skills for programming and editing.
• Ability to read blueprints and engineered drawings.
• Detail-oriented with strong problem-solving skills.

Responsibilities

• Set up and operate CNC boring mills to precise specs.
• Create and optimize CNC programs using Mastercam.
• Read blueprints and verify tolerances against specs.
• Determine tooling, workholding, and machine setups for large parts.
• Inspect finished parts and troubleshoot programming issues.

Skills

G-code programming

Mastercam CAD/CAM

Boring Mill operation

Multi-axis milling

Blueprint reading

Problem-solving

Tools

Mastercam CAD/CAM

Job description

CNC Boring Mill Machinist – Programmer

We have an opening for a CNC Machinist with programming expertise to machine custom components. This position is ideal for professionals with expertise in CNC Horizontal or Vertical Boring Mills who thrive on machining complex, one-off parts rather than repetitive production work. The successful candidate will have strong setup and machining experience with CNC mills and boring operations, combined with programming proficiency.

Key Responsibilities

• Set up and operate CNC Horizontal or Vertical Boring Mills to precision specifications.
• Create, modify, and optimize CNC programs using Mastercam software for boring and multi-axis milling operations.
• Use precision machinery to perform milling and boring operations on large custom components with high accuracy and repeatability.
• Read and interpret blueprints, engineering drawings, and technical specifications.
• Determine tooling, workholding, and machine setups for large, custom components.
• Create, modify, and optimize CNC programs using Mastercam CAD/CAM software for boring and multi-axis milling operations.
• Make program edits and machine adjustments to improve efficiency, accuracy, and part quality.
• Inspect finished parts to ensure they meet quality standards and engineering specifications.
• Troubleshoot machining and programming issues to maintain productivity.
• Follow all safety and quality standards while meeting production deadlines.

Qualifications

• Proven experience operating CNC Horizontal or Vertical Boring Mills.
• Capabilities: Ability to perform boring and multi-axis milling operations on custom, fabricated, and heavy components.
• Strong setup experience machining large, custom, or low-volume components.
• Required: Experience with G-code and/or M-code programming and interpretation for CNC machine control.
• Required: Strong proficiency with Mastercam CAD/CAM software, including creating, editing, and optimizing CNC programs for boring and milling operations.
• Experience with CNC program troubleshooting, toolpath optimization, and setup verification.
• Strong attention to detail, mechanical aptitude, and problem-solving skills.

Schedule

• Monday–Friday: 6:00 AM – 4:00 PM OR 7:00 AM – 5:00 PM
• Optional Saturday hours: 7:00 AM–12:00 PM
• Overtime paid at 1.5x the regular hourly rate

Compensation

Pay: $30–$40 per hour, based on experience

Benefits

• Medical, vision, and optional dental insurance
• Two weeks of paid time off
• Paid major holidays
• Annual bonus and profit-sharing opportunities

On-site parking

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