About Endurance

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 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 youll be doing

As a welder at Endurance Energy youll work alongside engineers to develop welding processes fabricate novel heat exchanger designs and develop repeatable manufacturing processes.

Youll gain hands-on experience with GTAW and handheld laser welding of stainless steel nickel alloys and titanium while helping us manufacture the worlds first subsea geothermal power plant.

Additionally you will support rapid prototyping and the first of a kind manufacturing efforts required to deliver subsea infrastructure in a fast-paced environment.

Key Responsibilities

• TIG welding of Inconel stainless steel and titanium

• HHLBW (handheld laser welding) of Inconel stainless steel and titanium

• Fit tack and weld heat exchangers that transfer 100-1000s of kW of power

• Weld thick-walled process piping for extreme high-pressure systems

• Collaborated with engineers on welding procedure qualification

• Perform hands-on machining fabrication and modifications to support rapid prototyping and test readiness

• Follow safety procedures in a welding and fabrication shop ensuring shop is compliant and safe

• Document assembly steps test procedures and observations for engineering review

• Collaborate with engineers to troubleshoot fit up and welding issues

• Maintain a clean and organized fabrication shop

Qualifications

• 3 years of professional experience TIG welding advanced alloys including Inconel stainless steel and titanium

• Demonstrated proficiency in HHLBW (handheld laser beam welding) or willingness to train into laser processes

• Deep understanding of weld quality standards for high-pressure high-temperature systems

• Experience fabricating or repairing components for marine aerospace or power generation systems

• Proven ability to fit tack and weld complex multi-material assemblies with tight tolerances

• Hands-on familiarity with fabrication tools machining and precision measurement

• Strong understanding of weld metallurgy joint design and distortion control for nickel and titanium alloys

• Comfortable reading and interpreting detailed engineering drawings and weld symbols (AWS D17.1 / ASME Section IX experience preferred)

• Knowledge of purging techniques filler selection and heat input control for corrosion-resistant weldments

• Track record maintaining a clean organized and safe fabrication environment

• Commitment to safety and continuous improvement in shop practices

• Ability to thrive in a fast-paced prototype-driven environment where designs evolve rapidly

• Excellent communication and documentation skills to support engineering traceability and QA review

Preferred Skills

• Experience welding pressure vessels or process piping for 10000 psi systems

• Familiarity with ASME code work or WPS/PQR development in collaboration with engineers

• Background in aerospace energy or marine fabrication environments

• Capability to perform visual and dye penetrant inspections

• CWI or other weld inspection certifications

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 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:

IC