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Valar Atomics

Senior Machinist

Valar Atomics, Hawthorne, California, United States, 90250

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We're looking for a Senior 5-Axis Machinist who can own complex jobs from print to part: programming, setup, prove-out, and production, while maintaining tight tolerances and excellent finishes. You'll primarily run a Hermle C-400 (Heidenhain control) and support additional equipment including a Hyundai WIA HD 3100SY mill/turn and a Fanuc Robodrill. This is a hands-on role in a high-mix, low-volume environment where quality, process discipline, and problem-solving matter.

Key Responsibilities

Set up,

operate, and maintain a

Hermle

C-400 5-axis machining center (Heidenhain control) to produce high-quality parts.

Program and edit toolpaths in Fusion 360

and Esprit Edge, including 3+2 and full 5-axis strategies as needed.

Set up and run a

Hyundai WIA HD 3100SY

(live tooling,

6" sub-spindle ,

Fanuc

i-Series) for mill/turn work, part transfers, and process optimization.

Set up and operate a

Fanuc Robodrill

( Fanuc Series 31i-Model B5 ) for production and support work.

Interpret engineering drawings, models, and route sheets to execute precise machining tasks.

Select tooling and work holding; set offsets; dial in feeds/speeds to optimize cycle time, tool life, and part accuracy.

Perform

first-article, in-process, and final inspections

using precision measuring instruments (micrometers, calipers, indicators, height gauges, bore gauges, etc.).

Troubleshoot machining and process issues (chatter, tool wear, runout, alarms, dimensional drift) and implement corrective actions.

Document setups and best practices (tool lists, work offsets, inspection notes) to support repeatability and team success.

Collaborate with engineering and production to improve manufacturability, reduce scrap, and strengthen process capability.

Maintain a clean, organized, and safe work area; follow all safety standards and shop protocols.

Support and mentor other machinists as needed to hit schedule and quality targets.

Qualifications

Proven CNC machining experience

with strong capability in

5-axis setup and operation

(Hermle experience is a big plus).

Fusion 360 CAM

proficiency (able to program, post, and adjust toolpaths; comfortable with prove-out and iteration on the floor).

Experience with

Heidenhain

controls (or strong ability to ramp quickly).

Solid mill/turn experience preferred—especially with

live tooling

and

sub-spindle

work (Hyundai WIA HD 3100SY or similar).

Familiarity with

Fanuc controls , ideally including

Fanuc

i-Series and

Fanuc 31i

platforms (Robodrill experience is a plus).

Strong ability to read and interpret prints,

GD&T , and technical specifications.

Deep understanding of machining principles, tooling selection, workholding, and material behavior.

Skilled in precision measurement and inspection; high attention to detail and pride in workmanship.

Able to work independently, communicate clearly, and collaborate in a fast-moving team environment.

Previous experience in a high-mix, low-volume manufacturing environment is a plus.

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