Welding & Fabrication Specialist
About this 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
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. If you’re selected for consideration, a recruiter will be able to discuss in greater detail. 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!
How We Work
We believe the people on our team should live their best lives while doing their best work and that these should complement each other. That's why we've built our team around in-person, in-office collaboration: we think working shoulder to shoulder accelerates trust, speed, and the kind of spontaneous problem-solving that's hard to replicate remotely, especially at our stage. We support families and the unpredictability that comes with them.
Our total rewards package is subject to change and may be modified in the future.