SeniorPrincipal Software Engineer

Endurance is building the worlds 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.

As a Senior/Principal Software Engineer at Endurance you will build software to optimize and accelerate every aspect of the company. As we scale from our first hundred-kilowatt subsea demonstration to gigawatt deployments you will architect configure and build the internal systems to run the hydrothermal power plant the testing software the cloud infrastructure and the tooling for all engineers at the company.

We believe an internal software team building the right stack is one of the highest leverage moves we can make as we scale.

You will be in the room with the hardware engineers designing subsea power plants the manufacturing leads building the production system the supply chain leads structuring procurement and the operators running ocean deployments designing and delivering the software that makes their work faster safer and more the near term that means standing up the data and telemetry pipeline for our first subsea demonstration building out our cloud services scoping and selecting the foundational engineering and manufacturing systems designing the supply chain and procurement tooling that will support our first 10MW commercial deployments and prototyping the first generation of Endurances internal tools.

You will also build the production software that makes a power plant on the seafloor operable. You will design the data pipeline that streams from a turbine kilometers below the surface the dashboards that let a Seattle control room run a plant off Tonga and the operational software that turns a fleet of subsea power plants into a utility.

The ideal candidate is a senior or staff engineer who has strong judgment on when to buy a vendor product and when to write your own can hold technical credibility with mechanical electrical and systems engineers and is energized by building the software that operates a category of energy infrastructure that has never existed before.

You will be one of the first full-stack software engineer at the company. You will work directly with the founding team and the operational leaders across Endurance and as the software function grows you will have significant influence on what gets built who joins the team and how the organization is shaped.

Architect and build the telemetry data and operational software that runs Endurances power plants on the seafloor and supports subsea deployment operations

Make and execute the build buy and configure calls on standing up software for procurement hardware engineering telemetry and operational tooling software

Interface closely with internal customers to understand their workflows inefficiencies and needs - so you can create great software to accelerate them

Write production code set engineering standards and build the technical patterns that the broader software team will inherit

Partner with engineering manufacturing supply chain finance and policy leaders to ensure the software roadmap maps to operational reality

Establish cybersecurity data governance and development practices appropriate for a venture-backed company operating across federal defense and international markets

Own the technical foundation that the broader software organization is built on

Help shape the software organization as it grows including interviewing and onboarding future engineers

5 years of software engineering experience

Track record architecting shipping and operating internal software systems

Demonstrated ability to ship production software end to end from architecture through deployment and operation

Technical fluency strong enough to hold credibility with mechanical electrical and systems engineers

Comfort being an early software engineer at a venture-backed company at sub-fifty headcount including all the ambiguity that comes with it

Ability to work onsite in Seattle and travel to deployment sites as required

Experience at all levels of the software stack -- from microcontrollers to cloud computing.

Familiarity with Rust and Nix.

Experience with manufacturing execution systems supplier development tooling or quality data systems at scale

Familiarity with cybersecurity frameworks relevant to defense and federal contracting (CMMC NIST 800-171 FedRAMP)

Prior experience standing up software for ITAR / EAR controlled environments

Background in subsea aerospace defense or other regulated hardware industries

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 worlds most pressing challenges

Competitive Compensation: Comprehensive salary and equity packages

Benefits: Vision Dental Health insurance coverage

Dive Certification: Company-sponsored recreational dive certification

Required Experience:

Staff IC