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.
Key highlights
- 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.
- Optimize manufacturing cycle times and tool selection to reduce production costs while maintaining strict dimensional tolerances.
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.
FAQs
What does a CNC Programmer do on a daily basis?
A CNC Programmer spends their day converting 3D CAD models into actionable machine instructions through CAM software. This includes selecting the correct cutting tools, defining feeds and speeds, and running simulation software to prevent tool crashes. They also spend significant time on the shop floor validating first-run parts and adjusting programs to meet precision quality standards.
What software and tools must a CNC Programmer know?
Essential tools for a CNC Programmer include advanced CAM packages like Mastercam, Fusion 360, or CATIA. They must also have a firm grasp of G-code and M-code programming languages and be comfortable using CAD software like SolidWorks to review part geometry. Additionally, familiarity with tool presetters and inspection equipment like CMMs is highly valued in high-tolerance environments.
What is the difference between a CNC Machinist and a CNC Programmer?
While a CNC Machinist focuses primarily on the hands-on operation, setup, and maintenance of the physical machine, a CNC Programmer focuses on the digital preparation and logic required for the machine to operate. The programmer spends more time at the computer writing code and optimizing paths, whereas the machinist ensures the workholding is secure and the machine is running safely during production.
Why is the role of a CNC Programmer critical to manufacturing?
The CNC Programmer is critical because they determine the efficiency and accuracy of the entire production line. An optimized program reduces cycle time, which lowers the cost per part, while precise toolpath logic ensures that components meet stringent safety and quality requirements. Without skilled programmers, complex mechanical parts could not be mass-produced with the high levels of repeatability modern industry demands.