CNC Programmer job description

Job brief

We are seeking a detail-oriented CNC Programmer to join our precision engineering team and elevate our manufacturing capabilities. In this role, you will lead the programming lifecycle for high-tolerance aerospace or automotive parts, working closely with mechanical designers and setup technicians to transition prototypes into full-scale production. You will have the autonomy to optimize cycle times, implement lean machining strategies, and refine our CAM workflows to maintain our competitive edge. If you are passionate about precision manufacturing and want to see your code transform raw materials into mission-critical components, we invite you to apply.

What is a CNC Programmer?

A CNC Programmer is a specialized manufacturing engineer who translates technical blueprints into precise machine instructions using Computer-Aided Manufacturing (CAM) software. As a vital link between design and production, a CNC Programmer interprets complex engineering drawings and GD&T specifications to develop high-efficiency toolpaths for multi-axis CNC lathes and mills. Their expertise directly impacts production throughput, material waste reduction, and the dimensional accuracy of high-precision mechanical components.

What does a CNC Programmer do?

A CNC Programmer spends their time authoring G-code and M-code to guide automated machine operations while troubleshooting production bottlenecks. They frequently interface with machine operators and quality inspectors to perform first-article inspections and adjust feed rates or spindle speeds for optimal performance. Additionally, they manage tool library databases, perform collision avoidance simulations, and document technical setup sheets to ensure repeatable, high-quality manufacturing processes across the shop floor.

Key responsibilities

• Develop and refine complex 3-axis and 5-axis toolpaths using Mastercam or Fusion 360 to maximize machine utilization.
• Translate engineering blueprints and GD&T requirements into accurate G-code programs for CNC milling and turning centers.
• Execute offline programming and collision simulations to verify safety and part integrity before sending code to the machine.
• Collaborate with machine operators to troubleshoot program errors, address surface finish issues, and implement rapid corrective actions.
• Optimize manufacturing cycle times and tool selection to reduce production costs while maintaining strict dimensional tolerances.
• Maintain a comprehensive library of reusable sub-programs, standardized tool fixtures, and machine-specific post-processors.
• Participate in design-for-manufacturability reviews to provide feedback on part geometry and reduce secondary machining operations.
• Document detailed setup sheets and work instructions to ensure consistent production quality across all manufacturing shifts.

Requirements and skills

• 5+ years of experience as a CNC Programmer in a high-precision manufacturing or machining environment.
• Expert-level proficiency in industry-standard CAM software such as Mastercam, Siemens NX, or Autodesk Fusion 360.
• Deep understanding of G-code and M-code programming for FANUC, Heidenhain, or Siemens machine controllers.
• Advanced ability to interpret technical engineering drawings with a focus on Geometric Dimensioning and Tolerancing (GD&T).
• Comprehensive knowledge of cutting tool physics, speeds, feeds, and material properties for aluminum, steel, and titanium.
• Professional certification such as NIMS (National Institute for Metalworking Skills) or equivalent CNC machining credentials.
• Strong technical communication skills required to articulate manufacturing constraints to cross-functional design engineering teams.
• Ability to perform rigorous root cause analysis on failed parts and iterate on machining strategies to prevent reoccurrence.

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