About the role
About Endurance Endurance is building the world's first modular subsea geothermal power plants, converting vast thermal resources under the ocean into gigawatts of baseload power. Backed by Founders Fund, Felicis, First Round Capital, and Point72 Ventures, our founding team includes veterans from SpaceX, Helion, Blue Origin, and Apple. We have completed multiple deep-ocean deployments to subsea volcanoes and are launching a long-term demonstration project this fall. By leveraging modular design, manufacturing scale, efficient drilling, and latent cooling on the seafloor, we are pioneering a new category of energy that outperforms traditional sources on environmental impact, deployment speed, and cost. What you'll be doing As a Senior or Principal Turbomachinery Engineer at Endurance, you will be the critical technical member of
the team responsible for the core of our seafloor power plants. You will lead the design, analysis, and optimization of high-performance turbines and pumps specialized for compact power cycles. This role requires a combination of strong first principles understanding of turbomachinery and a first principles hands-on approach to hardware. You will take turbomachinery designs from initial 1D sizing all the way to testing production designs in subsea deployments. Key
Responsibilities Lead Aero-Thermal Design: Own the design and optimization of turbines and pumps for power generation cycles. Rapid Iteration: Use 1D/2D modeling tools for rapid sizing, trade studies, and system-level integration. Numerical Simulation: Conduct high-fidelity 3D CFD analysis and structural FEA to ensure component performance and reliability. Testing & Validation: Lead test campaigns to validate turbomachinery performance, correlate analytical models with experimental data, and identify failure modes. Mechanical Integration: Integrate rotors, housings, bearings, and seals into robust, field-ready assemblies. Tool Development: Establish internal modeling processes, design standards, and documentation to enable
