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.