Senior Propulsion Mechanical Design Engineer

<div class="content-intro"><p class="p1">K2 is building the largest and highest-power satellites ever flown, unlocking performance levels previously out of reach across every orbit. Backed by <a href="https://www.forbes.com/sites/aliciapark/2025/12/11/this-startup-is-building-huge-satellites-for-an-underused-interstellar-sweet-spot/?ctpv=searchpage">$450M</a> from leading investors including Altimeter Capital, Redpoint Ventures, T. Rowe Price, Lightspeed Venture Partners, Alpine Space Ventures, and others <span class="s1">– </span>with an additional $500M in signed contracts across commercial and US government customers – we’re mass-producing the highest-power satellite platforms ever built for missions from LEO to deep space.<span class="Apple-converted-space"> </span></p> <p class="p1">The rise of heavy-lift launch vehicles is shifting the industry from an era of mass constraint to one of mass abundance, and we believe this new era demands a fundamentally different class of spacecraft. Engineered to survive the harshest radiation environments and to fully capitalize on today’s and tomorrow’s massive rockets, K2 satellites deliver unmatched capability at constellation scale and across multiple orbits.<span class="Apple-converted-space"> </span></p> <p class="p1">With multiple launches planned through 2026 and 2027, we're Building Bigger to develop the solar system and become a Kardashev Type II (K2) civilization. <span class="TextRun SCXW79998266 BCX0" lang="EN-US" data-contrast="auto"><span class="NormalTextRun SCXW79998266 BCX0">If you are a motivated individual who thrives in a fast-paced environment and </span><span class="NormalTextRun SCXW79998266 BCX0">you're</span><span class="NormalTextRun SCXW79998266 BCX0"> excited about contributing to the success of a groundbreaking Series C</span><span class="NormalTextRun SCXW79998266 BCX0"> space startup, </span><span class="NormalTextRun SCXW79998266 BCX0">we’d</span><span class="NormalTextRun SCXW79998266 BCX0"> love for you to apply.</span></span><span class="EOP SCXW79998266 BCX0" data-ccp-props="{"335559738":240,"335559739":240}"> </span></p></div><p><strong><span data-contrast="auto">The Role</span></strong></p> <p><span data-contrast="auto">You will own the success of mechanical structures and mechanisms used for a propulsion system that will be the highest-powered electric propulsion system ever flown and unlock new mission concepts and increase our access to deep space. As part of a small multidisciplinary team, your role will involve mechanical design, development, build, test, and analysis of the satellite’s plasma propulsion system and all related hardwar</span><span data-contrast="auto">e. </span><span data-contrast="auto">In your first 6 months, you will define product requirements, create initial concepts and trades, perform preliminary and detailed analysis, define development test campaigns, and produce development hardware.</span><span data-contrast="auto"> </span><span data-contrast="auto">In your first year, you will validate your designs through prototype iterations and build and qualify flight hardware. In your first two years you will fly your hardware in space while directly supporting production and integration. </span><span data-ccp-props="{}"> </span></p> <p><strong><span data-contrast="auto">Responsibilities</span></strong><span data-ccp-props="{"335559738":240,"335559739":240}"> </span></p> <ul> <li><span data-contrast="auto">Own the mechanical design of propulsion system hardware including propulsion modules, critical thruster components, the propellant management system, avionics box design, propulsion secondary structures, and potentially tank development</span><span data-ccp-props="{}"> </span></li> <li><span data-contrast="auto">Validate your designs through the entire lifecycle from concept to production, and successful flight demonstrations</span><span data-ccp-props="{}"> </span></li> <li><span data-contrast="auto">Generate 3D models, fully dimensioned drawings, and interface control documents</span><span data-ccp-props="{}"> </span></li> <li><span data-contrast="auto">Perform analysis on data from testing hardware, iterating designs, and critical go/no-go calls on hardware performance</span><span data-ccp-props="{}"> </span></li> <li><span data-contrast="auto">Develop and execute component and system-level test plans</span><span data-ccp-props="{}"> </span></li> <li><span data-contrast="auto">Manage key propulsion vendors and suppliers through hardware delivery</span><span data-ccp-props="{}"> </span></li> <li><span data-contrast="auto">Continually own and refine sub-system deliverable schedules throughout development and production</span><span data-ccp-props="{"335559739":240}"> </span></li> </ul> <p><strong>Qualifications</strong> </p> <ul> <li>Bachelor’s degree in mechanical, aerospace, or other relevant engineering discipline </li> <li>10+ years of experience with mechanical and/or electromechanical design and analysis</li> <li>Experience with CAD or FEA software packages  </li> <li>Experience with the practical application of GD&T </li> <li>Demonstrated proficiency in the principles of mechanical design, materials, thermodynamics, and fluids </li> <li>Demonstrated ability to personally design, build, and test hardware from a blank canvas, including troubleshooting and iterating designs based on downstream feedback </li> </ul> <p><strong>Nice to Have</strong> </p> <ul> <li><span data-contrast="auto">Demonstrated ability to own mechanical hardware or systems within an integrated engineering team outside a classroom setting</span><span data-ccp-props="{"134233117":false,"134233118":false,"201341983":0,"335551550":1,"335551620":1,"335559685":720,"335559737":0,"335559738":0,"335559739":0,"335559740":276,"335559991":360}"> </span></li> <li><span data-contrast="auto">Experience in advanced propulsion technologies, including high-performance engines, in-space propulsion, and propulsion system integration&lt