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 First Round Capital and Point72 Ventures, our founding team includes veterans from SpaceX, Helion, and Robinhood. We have completed multiple deep ocean deployments and are launching our generation pilot this year. By leveraging manufacturing scale, efficient drilling, and latent cooling on the seafloor, we are pioneering a new category of energy that outperforms traditional sources on both environmental impact and cost.

What you'll be doing

As a Senior Supplier Development Engineer at Endurance, you will own the full bill of materials and supplier base for our seafloor power plants. This is not a back office procurement role. You will know each component of our system down to the material level and will have deep technical ownership over the supply chain decisions that directly determine our Levelized Cost of Energy (LCOE).

You will build supplier relationships and qualification programs from scratch, source long lead and custom hardware, and drive manufacturing feedback into the engineering team. You will own everything from raw material inputs and subsea transformers to logistics, import/export compliance, and delivery timelines across global deployments.

Key Responsibilities

• Develop deep technical knowledge of our entire system and use that knowledge to guide material selection decisions alongside engineering staff

• Identify, qualify, and develop suppliers for custom and long lead components across mechanical, electrical, and structural subsystems

• Build and manage the company's bill of materials, supplier quality tracking, and procurement infrastructure from the ground up

• Own negotiations with vendors and contract manufacturers, driving favorable cost, quality, and delivery outcomes

• Manage logistics, transport, and delivery timelines company wide. Ensure on time delivery by any means necessary

• Create and operate an import/export control framework to support international deployments

Required Qualifications

• BS in Mechanical Engineering, Materials Science, Aerospace Engineering, Electrical Engineering, or a related engineering field

• 3+ years of experience in supplier development, supply chain engineering, or a technical operations role involving complex hardware and custom machined parts

• Demonstrated ability to work at the component and material level on electromechanical systems

• Experience managing supplier quality, running corrective actions, and qualifying new sources for custom or high-reliability parts

• Strong negotiation skills with dozens of examples of successful outcomes

• Hands-on hardware experience: you've been on a factory floor, inspected parts, and understand manufacturing processes firsthand

Preferred Experience

• Experience in aerospace, energy, subsea, or other industries with demanding reliability and qualification requirements

• Familiarity with PCB, machined component, casting/forging, or specialty materials supply chains

• Background in new supply chain buildout, including make/buy decisions and supplier ramp planning

• Experience with international logistics, customs, and export control compliance (EAR/ITAR familiarity a plus)

Benefits & Perks

• Global Fieldwork: Travel to fascinating deployment sites along oceanic ridges in locations like the Pacific Northwest, Hawaii, Iceland, Japan, New Zealand, and the Azores

• Hands-on Experience: Participate in sea trials and deployment operations in partnership with leading oceanographic institutions

• Cutting-edge Development: Work with technology that spans high-power electronics, marine systems, and clean energy

• Impactful Work: Help solve one of the world's most pressing challenges

• Competitive Compensation: Comprehensive salary and equity packages

• Benefits: Vision, Dental, Health insurance coverage

• Dive Certification: Company-sponsored recreational dive certification