Senior Mechanisms Engineer

K2 is building the largest and highest-power satellites ever flown, unlocking performance levels previously out of reach across every orbit. Backed by $450M from leading investors including Altimeter Capital, Redpoint Ventures, T. Rowe Price, Lightspeed Venture Partners, Alpine Space Ventures, and others – 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. 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. 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. If you are a motivated individual who thrives in a fast-paced environment and you're excited about contributing to the success of a groundbreaking Series C space startup, we’d love for you to apply. The Role You wi ll own the success of mechanisms that will be key to our satellite operation and performance. In your first 6 months, you will define mechanism requirements, trade architectures and build initial prototypes, perform preliminary and detailed analysis, define development test campaigns, trade and select any purchased components, and produce development hardware. In your first year you will validate your designs through prototype iterations in rigorous test campaigns, build, and qualify flight hardware. In your first two years you will fly your hardware in space while supporting operations, production, and integration teams as we scale. Responsibilities Take hardware and mechanisms from conceptual design through qualification to on-orbit operations in order to support internal and external customer needs Lead design reviews from kickoff through qualification and beyond Drive hardware development, including hands-on development testing, analysis correlation, and follow-on hardware iterations Perform hardware trades that steer both sub-system and top-level product direction Collaborate with a cross-functional team to establish product requirements, company processes, and best practices for hardware design and manufacturing Continually own and refine system deliverables and associated schedules throughout development and production Qualifications Bachelor’s degree in mechanical, aerospace, or other relevant engineering discipline Minimum 5+ years of experience with mechanical and/or electromechanical design and analysis Experience with CAD or FEA software packages Nice to Have Experience designing, building, and testing moving mechanical assemblies for aerospace applications (satellite mechanical systems, payloads, launch vehicles, propulsion systems, and/or aircraft structures and mechanisms) Experience with NASA-STD-5017, SMC-S-016, and GSFC-STD-7000 for the design and qualification of in-space Moving Mechanism Assemblies Experience with kinematic synthesis, electromechanical actuation, mechatronics and instrumentation Experience with bearing analysis, preload techniques, and preload measurement Experience with the practical application of GDT Demonstrate d ability to own moving mechanism assemblies across the full product lifecycle in a high velocity environment Demonstrated understanding of structural analysis and failure modes of complex mechanical systems in space environments and operations Independent and self-motivated mindset, with strong organizational, written, and oral communication skills across disciplines Compensation and Benefits: Base salary range for this role is $140,000 - $175,000 + equity in the co ... (truncated, view full listing at source)