Lead CNC Machinist

Location El Segundo
Contact Alex Lloyd
Job Ref 10435
Published 11 months ago
Job Type Permanent

Job Description

Are you a hands-on Prototype Machinist who thrives on turning bold engineering concepts into real, functional parts?

We are seeking an experienced Prototype CNC Machinist / Programmer to help transform innovative design ideas into precision-engineered prototypes. In this role, you’ll work directly with toolmakers and engineers to machine, assemble, and deliver parts that shape the future of aerospace development.

Key Responsibilities

  • Machine and fabricate prototype aerospace components, tools, and fixtures from rough design sketches to finished parts.
  • Program, edit, and operate CNC Milling, Turning, and Mill-Turn equipment (including 5-axis).
  • Apply expert GD&T knowledge to produce precision tools, molds, and components meeting exact geometric tolerances.
  • Perform manual milling, turning, and grinding to refine parts and ensure optimal fit and finish.
  • Develop, test, and iterate plastic injection mold tooling and short-run production parts.
  • Collaborate with design and manufacturing engineers to provide Design for Manufacturability (DFM) feedback.
  • Apply creative problem-solving and on-the-fly machining adjustments to achieve desired outcomes in a fast-paced R&D environment.
  • Assist with machine selection, setup, commissioning, and maintenance as new capabilities are introduced.

Minimum Qualifications

  • 5+ years of experience in high-precision or aerospace machining.
  • Strong background in 3-, 4-, and 5-axis CNC programming and editing.
  • Proficiency with CAM software (Mastercam, HyperMill, Esprit) and 3D CAD tools (SolidWorks, Siemens NX, Catia).
  • In-depth understanding of G-code, M-code, and CNC controls.
  • Expertise in GD&T, blueprint interpretation, and tolerance stack-ups.
  • Hands-on experience using CMMs, micrometers, calipers, dial indicators, and height/depth gauges.

Preferred Qualifications

  • Experience machining injection mold tooling, including wire and die-sinking EDM.
  • Strong knowledge of aerospace materials and surface finishes.
  • Ability to thrive in a fast-moving prototyping and development environment.

Apply Today

Be part of a team delivering cutting-edge aerospace prototypes. Work on innovative parts that will define the future of aircraft development.
Bring your craftsmanship, creativity, and technical mastery to an environment where innovation truly takes flight.

Apply