General Matter · 12 hours ago
CNC Machinist (Mill & Lathe)
Los Angeles, CA
Full-time
Onsite
Senior Level
$27/hr - $55/hr
7+ years expGeneral Matter is a company focused on enriching uranium in America to support critical industries and national ambitions. They are seeking a highly skilled Senior CNC Machinist with expertise in CNC Mills and Lathes to optimize processes and support R&D in nuclear fuel production.
EnergyFuelManufacturingNuclear
Responsibilities
Program, set up, and operate CNC Mills and CNC Lathes, including live tooling and multi-axis operations
Develop and optimize CNC programs (G-code and CAM-generated) for complex geometries and tight tolerances
Execute first-article builds, prove-outs, and low-volume production runs in an R&D environment
Troubleshoot machining issues related to tooling, fixturing, materials, and machine dynamics
Design, fabricate, and iterate custom fixtures and workholding solutions
Collaborate with Manufacturing Engineering to improve part stability, repeatability, and setup efficiency
Lead or support cycle-time reduction initiatives through toolpath optimization, tooling selection, and process redesign
Identify opportunities to reduce setup time, scrap, and rework
Contribute to standard work, setup documentation, and machining best practices
Support the transition of R&D processes into stable, repeatable production workflows
Work closely with design and manufacturing engineers during early-stage development
Provide manufacturability feedback on part designs (DFM)
Support rapid prototyping, design changes, and engineering experiments with short turnaround times
Qualification
Required
High school diploma or equivalency certificate
7+ years of CNC machining experience in a mill/lathe environment
Strong expertise in live tooling programming
Proven experience programming and running complex multi-axis parts
Strong understanding of GD&T
Physical effort including standing, lifting, and carrying equipment up to 50 lbs. unassisted
Must be able to work all required shift hours, overtime and/or weekends as needed
Preferred
Advanced CAM experience (e.g. Mastercam, Fusion, NX, or equivalent)
Experience supporting production ramp-ups from prototype to volume
Background in aerospace, energy, advanced manufacturing, or precision components
Able to read blueprints and complete basic shop math
Able to work independently and problem-solve efficiently with minimal supervision
Positive attitude and ability to work well on a team
Willingness to provide constructive feedback to the engineering and production teams to improve tooling designs, processes, and parts
Able to stay organized with strong attention to detail
Benefits
Long-term incentives, in the form of stock options
Medical, vision & dental coverage
Access to a 401(k) retirement plan
Company
General Matter
General Matter is a nuclear energy company that produces enriched uranium fuel for nuclear energy applications.
11-50 employees
Funding
Current Stage
Early StageTotal Funding
$50MKey Investors
Founders Fund
2025-04-14Series Unknown· $50M
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