CNC Programmer​/Operator - Doosan PUMA 3100 & Advanced Machining

CNC Programmer/Operator - Doosan PUMA 3100 & Advanced Machining

CNC Programmer/Operator – Doosan PUMA 3100 & Advanced Machining Centers

About Check-Mate Industries

For more than 53 years, Check-Mate Industries has set the standard for precision manufacturing—serving the firearms, medical, automotive, and hardware industries with world‑class quality and reliability. With two ISO‑9001 certified facilities totaling over 238,000 sq. ft. in New York and Georgia, we combine craftsmanship, technology, and innovation to deliver complex metal stampings, CNC machined components, and plastic injection molded parts.

We are expanding our advanced machining department with the addition of a new Doosan PUMA 3100 Mill‑Turn Center and are seeking a highly skilled CNC Programmer and Operator to support our continued growth in precision machining and high‑volume production.

• Programs, sets up, and operates Doosan PUMA 3100 mill‑turn, as well as horizontal and vertical CNC mills (Makino A51, Doosan HP4000, Makino F5, Haas VF‑2, Haas Mini‑Mills)
• Creates, proves out, and optimizes CNC programs using Mastercam or similar CAM software
• Develops efficient tool paths, speeds, feeds, and work‑holding strategies for precision production
• Conducts machine setups, tool presetting, and offset adjustments for production and prototype runs
• Interprets blueprints, GD&T, and processes sheets to ensure conformance to specifications
• Performs part inspections using micrometers, calipers, height gauges, and CMM reports as required
• Troubleshoots machining issues, identifies process improvements, and collaborates with engineering and quality teams
• Maintains safe, clean, and organized work areas consistent with 5S and ISO standards

• Minimum 3–5 years of CNC programming and operating experience, including multi‑axis mill‑turn and horizontal/vertical machining centers
• Strong proficiency in Mastercam or equivalent CAM software
• Experience with Doosan, Makino, and Haas machine controls (Fanuc and proprietary systems)
• Deep understanding of G‑code, tool selection, work offsets, and fixture design
• Proven ability to read and apply GD&T and blueprint tolerancing
• Familiarity with ISO‑9001 or ISO‑13485 environments a plus
• Strong mechanical aptitude, problem‑solving skills, and attention to detail

• Work on state‑of‑the‑art CNC equipment including Doosan, Makino, and Haas machining centers
• Collaborative team culture focused on precision, innovation, and continuous improvement
• Growth opportunities within a rapidly expanding, family‑owned manufacturer
• Competitive pay, benefits, and advancement potential
• Play a key role in Check‑Mate’s next phase of operational excellence and capacity expansion

• Comprehensive benefits package including medical, dental, vision, 401(k), paid holidays and paid time off (PTO)
• Career advancement opportunities within Check‑Mate's expanding machining department