CNC Machinist 4-Axis Haas Mill; Mastercam

Position: CNC Machinist 4-Axis Haas Mill (Mastercam)
Millennium Power Service is hiring an experienced CNC Machinist with strong 4-axis milling and Mastercam programming experience to support precision manufacturing operations at our Westfield, MA facility.

This position is ideal for a machinist who enjoys owning the entire process — from reviewing prints and programming to setup, prove-out, and producing high-quality finished parts. We’re looking for someone who can work independently, solve problems on the fly, and consistently deliver precision work in a fast-paced shop environment.

What You’ll Be Doing

Program, set up, and operate 4-axis Haas CNC milling machines

Build and modify programs using Mastercam software

Perform complete machine setups including tooling, fixturing, offsets, and first-piece inspections

Interpret engineering drawings, blueprints, and GD&T requirements

Machine precision components while maintaining close tolerances and quality standards

Edit programs and adjust machining parameters to improve performance and efficiency

Select appropriate tooling, inserts, holders, and work holding solutions for each project

Inspect parts using precision measuring equipment including micrometers, calipers, indicators, and bore gauges

Troubleshoot machining and programming issues to reduce downtime and improve production flow

Maintain a clean, organized, and safety-focused work area

Qualifications

5+ years of CNC machining experience preferred

Hands-on experience with 4-axis Haas milling machines

Strong Mastercam programming skills required

Ability to independently complete setups and prove-outs

Comfortable machining to tight tolerances

Ability to read and interpret blueprints and GD&T

Strong understanding of feeds, speeds, tooling, and machining strategies

Experience using precision measuring equipment

Solid math and problem-solving abilities

High school diploma or equivalent required

Trade school or machining certification is a plus

Preferred Background

Experience machining stainless steel, alloy steel, or specialty materials

Familiarity with Haas controls and post-processors

Continuous improvement mindset with the ability to optimize cycle times and reduce scrap

Schedule

Monday – Friday | 7:00 AM – 3:30 PM

Overtime and weekend hours available based on production needs

Compensation & Benefits

Competitive pay based on experience and skill level

Premium overtime and weekend pay opportunities

Medical, dental, and vision coverage

Short-term and long-term disability plans

Life insurance and 401(k)

Paid holidays and PTO

Stable work environment with long-term career potential

Clean, organized, and safety-driven shop

At Millennium Power Services, we value craftsmanship, accountability, and teamwork. If you’re a skilled machinist looking for a company where your experience and problem-solving abilities make an impact, we encourage you to apply.