Welding & Fabrication Specialist

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 welder at Endurance Energy, you’ll work alongside engineers to develop welding processes, fabricate novel heat exchanger designs, and develop repeatable manufacturing processes. You’ll gain hands-on experience with GTAW and handheld laser welding of stainless steel, nickel alloys, and titanium while helping us manufacture the world’s 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 10,000 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 COMPENSATION, BENEFITS, & PERKS As a pre-revenue startup, Endurance Energy offers competitive base salaries and generous equity packages for full-time employees. Final base salary will be determined by an array of factors including internal equity, job-related knowledge, skills, and work experience. A key aspect of our compensation philosophy is that value creation should be aligned with rewards. Right now this means equity is a significant portion of every full-time employee's compensation. As the company matures, there will be continued evolution and changes to the total rewards and total compensation package. What will always be true is that if we win, we win together. Equity is granted to every full-time employee as a meaningful piece of ownership. We believe the people building the company should share directly in the value they create. In addition to a competitive base salary and equity, employees will receive all of our other great benefits and perks, including: - Benefits: Health, Dental, and Vision insurance coverage - Time Away: Flexible PTO including 12 paid company holidays - 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 - Dive Certification: Company-sponsored recreational dive certification - Other Perks: Access to the company boat, free meals and snacks, and the list goes on! If you’re selected for consideration, a recruiter will be able to discuss in greater detail.