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 Endurance is developing fully custom turbomachinery, heat exchangers, and balance of plant for our 2MW and 10MW sCO2 generators. This role owns our turbomachinery both technically and organizationally. As Director of Turbomachinery, you will set the technical direction for turbine and pump development across the full product lifecycle: from thermodynamic cycle integration and aero-thermal design, through manufacturing and test, to long-duration operation on the seafloor. You will build and lead the turbomachinery team, and your decisions will directly shape the performance, reliability, and cost of our core power conversion hardware. Key
Responsibilities Set Technical Direction: Define the aero-thermal design philosophy and architecture for turbines and pumps across all power generation cycles, making final calls on design tradeoffs at the system level. Lead
the Team: Hire, develop, and manage a team of turbomachinery engineers. Foster a culture of rigorous first-principles engineering paired with a strong bias toward hardware. Own the Program: Drive turbomachinery development from early-stage sizing and trade studies through detailed design, validation, and subsea deployment — holding accountability for schedule, performance, and reliability. Design Through Test: Personally lead critical design work — from 1D sizing and CFD analysis to mechanical integration of rotors, housings, bearings, and seals — and see it through to hardware assembly and test validation. Govern Simulation and Analysis: Set standards for 3D CFD and structural FEA across
