<p><strong>About the Company</strong></p> <p><u>General Matter enriches uranium.</u></p> <p>We are designing, building, and operating the world’s lowest-cost enrichment services, here in the US. </p> <p>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. </p> <p>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.</p> <p>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. </p> <p>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. </p> <p>Our lean, world-class team of engineers and operators is applying a first-principles approach to solving the problem of nuclear fuel production. </p> <p>We are a mission-driven company with a culture of urgency, accountability, and transparency. </p> <p>Help us build a high-energy society by making the cleanest, safest form of baseload energy the most affordable. </p> <p><strong>About This Role</strong></p> <p>As a General Matter Mechanical Engineer, you will design, build, test, and own the mechanisms and mechanical structures enabling our next-generation enrichment technology — including precision optical and photonic subsystems, beam delivery hardware, and components that must survive demanding thermal, chemical, and material-compatibility conditions unique to uranium processing. You will work closely with cross-functional teams, including electrical engineers, optical engineers, software engineers, chemical engineers, manufacturing engineers, nuclear engineers, materials scientists, metallurgists, and physicists. If you seek high impact and are excited by fast-paced, intense, Skunkworks-style projects at the frontier of enrichment technology, we encourage you to apply to join our team.</p> <p><strong>Responsibilities</strong></p> <ul> <li>Develop mechanisms and mechanical structures for enrichment — including precision mounts, alignment stages, beam delivery paths, or enclosures for optical and photonic subsystems — and own them through the entire product lifecycle including requirements definition, design, development, qualification, and release to production.</li> <li>Select and specify materials and coatings for enrichment hardware based on mechanical, thermal, optical, and corrosion/wear performance requirements.</li> <li>Support optimization of designs for cost, performance, and manufacturability.</li> <li>Functionally test your hardware through thermal, vibe, shock, durability, etc., including precision alignment and beam pointing/stability testing for optical assemblies.</li> <li>Perform root-cause analysis on test failures and develop hardware mitigations.</li> <li>Collaborate with materials scientists and metallurgists to characterize material behavior under process-relevant conditions — including exposure to high-energy optical sources — and translate findings into design decisions.</li> <li>Participate in design review and provide feedback to ensure design objectives are met.</li> <li>Work closely with electrical, optical, software, manufacturing, and nuclear engineers to ensure designs are effectively integrated with overall system requirements.</li> </ul> <p><strong>Preferred Skills and Experience</strong></p> <ul> <li>Background or working knowledge in materials science or metallurgy, particularly failure analysis, material selection, or performance of metals/alloys under extreme thermal, mechanical, or corrosive conditions.</li> <li>Experience designing precision mechanical structures for optical or photonic-based (e.g., alignment stages, athermal mounts, beam delivery paths, thermal management for high-energy optical components).</li> <li>Strong understanding of engineering fundamentals.</li> <li>Ability to perform trade studies and make clear recommendations using first principles and engineering fundamentals even with partial information.</li> <li>Experience in a fast-paced engineering environment or a highly technical role requiring a resourceful, entrepreneurial approach to complete tasks within tight timeframes or budget constraints.</li> </ul> <p><strong>Additional Requirements</strong></p> <ul> <li>Ability to work extended hours and weekends as necessary.</li> </ul> <p><strong>Equal Opportunity Employer</strong></p> <p>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.</p> <p>Compensation and Benefits</p> <p>The base salary range for this role is $140k-$220k annually.<br><br>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