CNC Machinist – 4 Axis Haas Mill; Mastercam

CNC Machinist – 4 Axis Haas Mill (Mastercam Required)

Job Category : Tech

Requisition Number : CNCMA
001228

• Posted :
  March 3, 2026
• Full-Time
• On-site

Showing 1 location

Westfield, MA 01085, USA

• Pay or shift range: $32 USD to $40 USD
  The estimated range is the budgeted amount for this position. Final offers are based on various factors, including skill set, experience, location, qualifications and other job-related reasons.

Millennium Power Services is seeking a highly skilled CNC Machinist to join our team in Westfield, MA. This role is specifically focused on programming, setting up, and operating a 4-axis Haas mill using Mastercam software.

We are looking for a self-sufficient machinist who can take a job from print to finished part with minimal supervision while maintaining tight tolerances and high-quality standards.

4-Axis Haas Mill Setup & Operation

• Independently set up and operate 4-axis Haas CNC milling machines.
• Perform complete machine setups including fixturing, tooling selection, offsets, and prove-outs.
• Run first articles and make program adjustments as needed.

Mastercam Programming

• Create, modify, and optimize CNC programs using Mastercam.
• Develop efficient toolpaths for 4-axis machining operations.
• Troubleshoot and refine programs to improve cycle times and part quality.
• Post-process programs specifically for Haas controls.
• Read and interpret blueprints, technical drawings, and GD&T.
• Understand tolerances and machining requirements to produce precision components.

Quality Control

• Inspect first-piece and in-process parts using precision measuring instruments (micrometers, calipers, bore gauges, indicators, etc.).
• Ensure parts meet all dimensional and quality specifications.

Tooling & Process Optimization

• Select appropriate tooling, inserts, holders, and fixtures.
• Recommend process improvements to increase efficiency and reduce scrap.
• Maintain proper cutting parameters for various materials.

Troubleshooting & Maintenance

• Identify and resolve machining issues to minimize downtime.
• Perform routine maintenance and maintain a clean, organized workspace.
• Adhere to all safety procedures and company standards.

• 5+ years of CNC machining experience required
• Strong experience programming in Mastercam (required)
• Proven experience setting up and operating 4-axis Haas mills (required)
• Ability to independently perform full setups and prove-outs
• Proficiency in reading blueprints and understanding GD&T
• Experience working to tight tolerances
• Strong understanding of speeds, feeds, tooling, and work holding
• Proficient with precision measuring instruments
• Strong math and geometry skills
• High school diploma or equivalent required; technical certification preferred

• Experience machining stainless steel, alloy steel, and specialty materials
• Experience optimizing cycle times and improving machining efficiency
• Familiarity with Haas controls and post-processors
• Regular hours:
  Monday-Friday, 7:00 am - 3:30 pm.
• Overtime and weekend hours available and required as needed.
• Weekend and overtime hours paid at elevated rates.
• Health, medical, and dental benefits.
• Short- and long-term disability plans.
• Life insurance policy and 401(k) plan.
• Paid time off and paid holidays.
• Clean and safe work environment.

Join Millennium Power Services and become part of a dynamic team dedicated to excellence in machining and manufacturing.

Millennium Power Services promotes a safe and drug-free work environment. All new hires must pass a background check and roles classified as safety-sensitive will require a pre-employment drug screen.

Millennium Power Services is an Equal Opportunity Employer. We encourage and seek qualified, motivated applicants. We make employment decisions based on business needs, qualifications, and merit. Millennium does not discriminate based on race, religion, color, sex, gender identification, sexual orientation, age, non-disqualifying physical or mental disability, national origin, veteran status, or any other basis covered by appropriate Federal, State, or Local law.

Equal Opportunity Employer

This employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights notice from the Department of Labor.