5-Axis Prototype Machinist & NPI Technician

Therm-x of California; Hayward (CA); On-site; USD 52,000 - 69,000; Full time

Benefits offered by this job

Medical

Dental

401(k)

Paid time off

Job summary

Therm-x of California is seeking a Prototype Machinist to work in Hayward, CA. The role focuses on 5-axis CNC milling and CAM programming to bring heater and sensor prototypes from drawing to first working parts.

You will interact with the NPI Engineering team, read drawings with GD&T, select tools, verify toolpaths, and ensure quality before first article inspection. Prototyping is fast-paced and tool-path accuracy is critical.

Qualifications

• Hands-on 5-axis CNC milling experience: programming, setup and operation.

Responsibilities

• Program, set up, and operate the 5-axis Okuma mill (and CNC lathe) to produce prototype parts, tools, and fixtures.
• Generate CAM programs from 3D models, including multi-sided and 5-axis toolpaths.
• Verify toolpaths in simulation to catch collisions before cutting.
• Select cutting tools, feeds, speeds, and toolpath strategies per prototype material and geometry.
• Choose appropriate workholding for one-off and low-quantity parts.
• Read and interpret engineering drawings with GD&T; confirm critical dimensions and surface finishes.
• Inspect parts using calipers, micrometers, height gauges; record results for FAI.
• Collaborate with mechanical engineers on manufacturability and DFM input.
• Build basic test fixtures and assist with prototype assembly and data collection.
• Maintain a clean, safe prototyping cell; track tooling and machine condition.
• Support NPI technician work outside the cell as needed.

Skills

5-axis CNC milling

CAM programming

GDT reading

CAD-reading communication

Inspection tools

NPI collaboration

Fixture design basics

Safety-conscious

Tools

Okuma (OSP)

Mastercam

HSM

Esprit

NX CAM

Job description

Therm-x of California is seeking a Prototype Machinist to work in Hayward, CA. The role focuses on 5-axis CNC milling and CAM programming to bring heater and sensor prototypes from drawing to first working parts.

You will interact with the NPI Engineering team, read drawings with GD&T, select tools, verify toolpaths, and ensure quality before first article inspection. Prototyping is fast-paced and tool-path accuracy is critical.