Senior Mechanical Engineer - Lithium

About the Company

Marathon Fusion

150 Mississippi Street, San Francisco, CA, USA

21-50

<p><strong>About Marathon Fusion</strong></p><p>Since our founding in 2023, Marathon Fusion has developed fuel cycle technologies to deliver fusion energy more quickly with better economics.</p><p style="text-align: left;">Our work spans three areas:</p><ul><li><p><strong>Transmutation:</strong> Neutron-driven production of radioisotopes and gold to generate a second source of value beyond power</p></li><li><p><strong>Fuel processing:</strong> Advanced pumping technologies to improve tritium burn efficiency and processing speed</p></li><li><p><strong>Isotope separation:</strong> Supplying critical materials for fusion and other industrial applications</p></li></ul><p>Marathon Fusion was founded by <a target="_blank" rel="noopener noreferrer nofollow" href="https://www.linkedin.com/in/adam-rutkowski-9104a5115/">Adam Rutkowski</a>, previously a Propulsion Engineer at SpaceX and PhD candidate in Plasma Physics at Princeton University, and <a target="_blank" rel="noopener noreferrer nofollow" href="https://www.linkedin.com/in/kylecschiller/">Kyle Schiller</a>, previously a Fellow in science policy at Schmidt Futures. We believed then, and now more than ever, that fusion is humanity's best path to abundant, clean and reliable energy.</p><p>Marathon Fusion is <a target="_blank" rel="noopener noreferrer" class="text-blue-600 hover:text-blue-800 underline" href="https://arpa-e.energy.gov/programs-and-initiatives/search-all-projects/advanced-metal-foil-pumps-and-integrated-test-environment-fusion-fuel-cycle">supported</a> by several <a target="_blank" rel="noopener noreferrer" class="text-blue-600 hover:text-blue-800 underline" href="https://arpa-e.energy.gov/sites/default/files/2025-01/ARPA-E%20Vision%20OPEN_Project%20Descriptions_FINAL.pdf">awards</a> from the <a target="_blank" rel="noopener noreferrer" class="text-blue-600 hover:text-blue-800 underline" href="https://www.prnewswire.com/news-releases/marathon-fusion-wins-doe-infuse-award-to-advance-metal-foil-pump-technology-for-fusion-energy-302226137.html">US Department of Energy</a>, as well as the <a target="_blank" rel="noopener noreferrer" class="text-blue-600 hover:text-blue-800 underline" href="https://www.breakthroughenergy.org/">Breakthrough Energy Fellows</a> program, and leading investors including <a target="_blank" rel="noopener noreferrer" class="text-blue-600 hover:text-blue-800 underline" href="https://www.1517fund.com/">1517 Fund</a> and <a target="_blank" rel="noopener noreferrer" class="text-blue-600 hover:text-blue-800 underline" href="https://strong-atomics.com/contact">Strong Atomics</a>.</p>