--- title: 'CNC Machinist (Mill & Lathe) at General Matter' canonical: 'https://feeny.ai/job/cnc-machinist-mill-lathe-general-matter-los-angeles-xayktgnb9nf5' type: 'job' last_seen: '2026-09-13' --- # CNC Machinist (Mill & Lathe) at General Matter - **Company:** General Matter - **Location:** Los Angeles, CA - **Posted:** 2026-01-22 - **Last confirmed live:** 2026-09-13 - **Apply:** https://job-boards.greenhouse.io/generalmatter/jobs/5082164008 ## Job description ## About the Company General Matter enriches uranium. We are designing, building, and operating the world’s lowest-cost enrichment services, here in the US. In the process, we are restoring America’s ability to produce nuclear fuel to power AI, advanced manufacturing and critical industries our country relies on to remain competitive. Fuel drives the cost of advanced reactor electricity production, and enrichment drives the cost of the fuel that advanced reactors consume.  Reliable, low-cost enrichment is the catalyst for the nuclear Renaissance now under way. Our mission is to make nuclear not only the cleanest and safest source of baseload power, but also the most affordable.  We believe abundant nuclear energy will lead to a post-scarcity society. We were incubated inside Founders Fund, like Anduril and Palantir before us, and are backed by over a dozen of the world's top venture capital firms. Our lean, world-class team of engineers and operators is applying a first-principles approach to solving the problem of nuclear fuel production. We are a mission-driven company with a culture of urgency, accountability, and transparency. Help us build a high-energy society by making the cleanest, safest form of baseload energy the most affordable. CNC Machinist (Mill & Lathe) General Matter is seeking a highly skilled Senior CNC Machinist with deep hands-on experience across CNC Mills and CNC Lathes, with a strong emphasis on live tooling programming and complex multi-axis work. This role operates at the intersection of production machining and R&D, supporting rapid iteration, fixture development, and continuous cycle-time reduction. The ideal candidate is a technically grounded machinist who values craftsmanship, understands fundamentals, and can also think strategically—partnering with engineering to optimize processes, improve throughput, and enable scalable manufacturing. ## Responsibilities Machining & Programming - 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. Fixture & Process Development - 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. Continuous Improvement - 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. Collaboration & R&D Support - 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. ## Basic Qualifications - 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. ## Preferred Skills and Experience - 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. Additional Requirements - 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 ## Equal Opportunity Employer General Matter is an Equal Opportunity Employer; employment with General Matter is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status. ## Compensation and Benefits Pay range: Technician: $27.00 - $60.00/hour Compensation bands are determined by role, level, location, and alignment with market data. Individual level and base pay is determined on a case-by-case basis and may vary based on job-related skills, education, experience, technical capabilities and internal equity. Please note that the stated salary range is an estimate and may be adjusted based on market conditions, business needs, or other factors. In addition to base salary, for full-time hires, you may also be eligible for long-term incentives, in the form of stock options, and access to medical, vision & dental coverage as well as access to a 401(k) retirement plan. ## About General Matter ## Core Business - **Primary industry**: Nuclear energy – uranium enrichment, nuclear fuel supply chain - **Target customers**: Nuclear power plant operators (civilian reactors, small modular reactors, microreactors), data center operators, industrial manufacturers, and government/defense entities - **Mission**: “Restore US leadership in nuclear fuel” and “make the cleanest, safest form of baseload energy the most affordable” [generalmatter.com/mission](https://generalmatter.com/mission/) ## Products & Services - **Low Enriched Uranium (LEU)**: Enrichment of uranium to 3-5% U-235 for existing US civilian reactors (supplying ~20% of US grid power) - **High Assay Low Enriched Uranium (HALEU)**: Enrichment to 5-20% U-235 for next-generation small modular reactors (SMRs) and microreactors - **Enrichment as a Service**: Novel, scalable, cost-competitive enrichment technology to fill the critical gap in the US nuclear fuel cycle (conversion → enrichment → deconversion/fabrication) ## Market Standing - **Valuation/Market Cap**: Not disclosed (private company) - **Key Metric**: Currently hiring for 64+ roles across engineering, construction, legal, and operations; actively building enrichment capacity - **Notable Investors/Partners**: Described as backed by “institutions” and “generational companies” – specific names not publicly available [generalmatter.com/careers](https://generalmatter.com/careers/) - **Growth Signals**: Aggressive hiring across multiple disciplines; establishing a physical presence in Los Angeles (HQ) and Paducah, Kentucky (construction/manufacturing); addressing a critical national security gap (US currently performs <1% of global enrichment) ## Competitive Advantages - **Domestic enrichment technology**: Novel, proprietary enrichment process designed to be cheaper, more reliable, and scalable compared to foreign state-backed competitors - **National security moat**: Sole US-focused enrichment startup aiming to break dependence on Russian and Chinese supply chains - **Talent pool**: Attracts high-caliber individuals from nuclear engineering, technology, finance, and special operations backgrounds - **First-mover in HALEU**: Positioned to fuel the next wave of advanced reactors and behind-the-meter power for AI data centers ## Strategic Focus - **Scale domestic enrichment capacity**: Build and operate enrichment facilities in the US (Los Angeles and Paducah) - **Support AI and manufacturing growth**: Provide reliable, emissions-free baseload power for compute and industrial expansion - **Enable advanced reactors**: Supply HALEU for SMRs and microreactors, opening new markets in remote and austere environments - **Strengthen US energy independence**: Restore US leadership in nuclear fuel production ## Why Work Here - **Culture**: High standards, extreme ownership, copious autonomy, deep trust, zero politics – described as “work with the best across nuclear, tech and finance” [generalmatter.com/careers](https://generalmatter.com/careers/) - **Work environment**: On-site roles in Los Angeles, CA (engineering, nuclear, legal) and Paducah, KY (construction, procurement); no remote/hybrid options explicitly stated - **Notable perks**: Mission-driven work with national impact; opportunity to solve a critical energy and security challenge; flat organization with high agency - **Engineering culture**: Emphasis on control systems, embedded software, simulation, DevOps, and nuclear safety engineering; also seeks creative minds and numbers savants ## Sources 1. [generalmatter.com](https://generalmatter.com/) 2. [generalmatter.com/careers](https://generalmatter.com/careers/) 3. [generalmatter.com/mission](https://generalmatter.com/mission/) 4. [generalmatter.com/technology](https://generalmatter.com/technology/) 5. 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