Precision CNC Machinist

Job Description

Job Description

CNC Machinist

Hamilton, Ohio | Full-Time | Compensation: $28–$40/HR

POSITION SUMMARY

Mural Group is partnering with a CNC Machine shop in Hamilton, OH looking for experience CNC Machinist. The CNC Machinist owns the entire machining process, from setup and tooling selection through program editing, first-article validation, and production. This role works on complex, tight-tolerance components across aluminum, steel, titanium, and specialty alloys for aerospace, defense, and energy applications. The environment includes multi-axis milling, turning, and mill-turn equipment, requiring strong problem-solving and technical skills. This is a high-accountability role with the opportunity to take on challenging work and make a direct impact on quality and performance.

KEY RESPONSIBILITIES

• Set up CNC milling centers, lathes, and multi-axis/mill-turn machines from print to first-part approval

• Select and qualify tooling, workholding, and fixturing appropriate to part geometry and material requirements

• Edit and optimize CNC programs at the control (G-code, conversational, or CAM post) to achieve required tolerances and surface finishes

• Perform first article inspection using CMM, precision hand tools, and surface measurement equipment; document results

• Run production lots, monitor in-process quality, and make offset and tooling adjustments to maintain process capability

• Interpret complex engineering drawings, GD&T callouts, and customer-specific requirements

• Support automation and lights-out machining cells, including robot-assisted operations

• Troubleshoot machining issues including chatter, tool breakage, dimensional drift, and surface finish defects

• Mentor CNC Operators and contribute to process improvement and cycle time reduction efforts

• Maintain accurate production records, traveler documentation, and tool inventory

REQUIRED QUALIFICATIONS

• 5+ years of CNC machining experience with demonstrated setup and program editing capability

• Proficiency on multi-axis CNC platforms (milling, turning, or combined mill-turn)

• Strong ability to read and interpret complex engineering drawings and GD&T (ASME Y14.5)

• Hands-on experience with precision metrology: CMM, surface plates, micrometers, bore gauges, and thread gauges

• Solid understanding of cutting tools, toolpath strategies, speeds and feeds, and workholding for various materials

• Experience machining aluminum, steel, stainless, and at least one specialty alloy (titanium, Inconel, etc.)

• Ability to work independently and manage priorities across multiple jobs simultaneously

• Commitment to first-time quality and zero-defect production

PREFERRED QUALIFICATIONS

• Experience on 5-axis milling centers (Mazak, DMG Mori, Haas, or similar)

• Mill-turn or Swiss-turn programming/operation experience

• Background in aerospace (AS9100) or defense manufacturing environments

• CAM programming experience (Mastercam, Fusion 360, Hypermill, etc.)

• Familiarity with CMM programming (Calypso, PC-DMIS, or equivalent)

• Experience supporting or working within lights-out/robotic automation cells

You should be proficient in:

• CNC Tooling
• CNC Programming
• G-Code
• CNC Machine Setup & Changeover
• Aerospace Manufacturing

Machines & technologies you'll use:

• CNC Swiss Lathe
• CNC Lathe (5+ axis)