CNC Programmer

Job Description

CNC Programmer I

Overview:

We are looking for a CNC Programmer who can take an aerospace part from the drawing or solid model to a stable production process. This is not a desk-only programming job. You will be at the machine for setup, prove-out, first-piece inspection, and troubleshooting, working directly with machinists, Quality, and Engineering. A good program is not just code that runs. It must be safe, repeatable, clearly documented, and practical for the people running the job.

Responsibilities:

• Program new and repeat work in Mastercam for Haas machines and other assigned equipment.

• Start every job with the current drawing, model, traveler, specifications, and customer notes. Confirm the revision before any programming work begins.

• Decide how the part will be made, including the operation sequence, datums, stock condition, work holding, tooling, and inspection points.

• Choose cutting tools, holders, fixtures, speeds, feeds, coolant, and chip-control methods that fit the material, machine, tolerance, and expected tool life.

• Review, simulate, and backplot posted code before it reaches the machine. Check units, offsets, tool changes, spindle direction, coolant commands, machine travel, and all tool, holder, and fixture clearances.

• Be present for prove-out. Use graphics, dry run, single block, reduced rapid, and controlled first-piece methods until the process is safe and predictable.

• Build a setup package that another machinist can follow without guessing. Include the setup sheet, tool list, work holding details, program notes, and any special checks.

• Stay involved through the first piece and First Article Inspection. Compare the actual results with the drawing and make controlled corrections before the job is released.

• Keep programs under revision control. Save the approved file in the correct server location, document changes, and make sure the shop is running the current version.

• Troubleshoot alarms, dimensional movement, chatter, tool wear, poor finish, chip problems, and repeatability issues. Improve cycle time and tool life only after the process is stable.

• Explain the process to the setup person, machinist, or operator before handoff. Make sure they understand part orientation, clamping, tool-life concerns, offsets, and critical features.

• Raise manufacturability concerns early and support nonconformance or corrective-action investigations when the program, setup, tooling, or machining method may be involved.

• Follow P4 Swiss Lindel safety, FOD, traceability, and AS9100 procedures throughout the job. Stop and ask when the drawing, traveler, program, setup, inspection plan, and actual part do not match.

Qualifications:

• At least 5 years of hands-on CNC programming, setup, prove-out, and machine-operation experience in precision manufacturing or a closely related field.

• Strong Mastercam skills and experience programming Haas machines. You must be able to read, check, and safely edit G-code and M-code.

• A record of taking milling, turning, or multi-axis work from the drawing or model through a conforming first piece and production release.

• The ability to read advanced engineering drawings, follow revision controls, and apply Geometric Dimensioning and Tolerancing using ASME Y14.5 principles.

• Practical knowledge of cutting tools, work holding, machine limits, speeds and feeds, and machining aerospace materials such as aluminum, stainless steel, titanium, and nickel-based alloys.

• Solid shop math, including algebra, geometry, and trigonometry. You must be comfortable calculating coordinates, offsets, angles, and dimensions.

• The ability to check your own prove-out work with micrometers, calipers, height gages, bore gages, indicators, and…