Seattle, Washington, United States · On-site
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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 …
Skills: Mechanical Assembly, Fluid Systems Integration, Pressure Testing, Leak Detection, P&ID Interpretation
Kirkland, Washington, United States · On-site
$87k–$136k/yr
Kenworth Division of PACCAR is hiring a Senior Mechanical Engineer - Aftersales Engineering to join our engineering team in Kirkland, Washington. Company Information PACCAR is a Fortune 500 company established in 1905. P…
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Pullman, Washington, United States · On-site
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SEL has ambitious goals for developing products that make electric power safer, more reliable, and more economical. When open-source or off-the-shelf development tools don't meet the unique needs of our engineering domai…
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Washougal, Washington, United States · On-site
$81k–$101k/yr
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Seattle, Washington, United States · On-site
$185k–$295k/yr
At Expedia Group, we help travelers explore the world, one journey at a time. As a global travel company powered by passionate people, trusted partnerships, and leading technology, we connect travelers, partners, and adv…
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Redmond, Oregon, United States · On-site
$22/hr–$34/hr
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Washougal, Washington, United States · On-site
$23/hr–$25/hr
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Skills: Blueprint Reading, GD&T, Metrology, Gaging, Quality Control Testing
Seattle, Washington, United States · On-site
$185k–$295k/yr
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Mount Vernon, Washington, United States · On-site
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Washougal, Washington, United States · On-site
$23/hr–$25/hr
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Overland Park, Kansas, United States · On-site
$122k–$219k/yr
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Washougal, Washington, United States · On-site
$22/hr–$28/hr
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Seattle, Washington, United States · Hybrid
$185k–$295k/yr
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Washougal, Washington, United States · On-site
$22/hr–$28/hr
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Everett, Washington, United States · On-site
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Oak Harbor, Washington, United States · On-site
Amentum is currently seeking a qualified Aircraft Mechanic II specialized in Propulsion/Engine and Fuel Systems in support of the U.S Naval Air Station maintenance operations at NAS Whidbey Island. The Aircraft Mechanic …
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Seattle, Washington, United States · Hybrid
$132k–$211k/yr
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Burlington, Washington, United States · On-site
$29/hr–$55/hr
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Skills: Ammonia Refrigeration, Industrial Refrigeration, Mechanical Troubleshooting, Preventive Maintenance, Electrical Schematics
Seattle, Washington, United States · On-site
$144k–$194k/yr
This position is part of the AWS Specialist and Partner Organization (ASP). Specialists own the end-to-end go-to-market strategy for their respective technology domains, providing the business and technical expertise to …
Skills: Software Development, System Architecture, AI/ML Pipelines, Distributed Systems, Agentic AI
Woodland, Washington, United States · On-site
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Skills: Preventive Maintenance, Troubleshooting, Fabrication, Welding, Forklift Operation
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Assemble, plumb, and instrument complex mechanical and fluid systems to ensure they are leak-free and ready for testing. Debug integration issues and drive build quality to meet aggressive hardware milestones.
Requires 5+ years of experience in mechanical assembly and fluid systems integration with a strong ability to read engineering drawings. Candidates must have a high ownership mindset and experience with pressure testing and system validation.
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.
As an Integration & Test Specialist at Endurance Energy, you will work alongside mechanical, fluids, and electrical engineers to assemble, plumb, instrument, and test complex systems under real-world conditions.
You will be responsible for taking subsystems from parts to fully integrated hardware, pressure-tight, leak-free, instrumented, and ready for test. You will play a key role in debugging integration issues, improving build processes, and ensuring systems are safe and robust before deployment.
You are expected to operate with high ownership on the floor: driving build quality, identifying issues early, and pushing systems to readiness without waiting for direction.
This is a critical position where your speed, precision, and judgment directly impact our ability to hit hardware milestones on aggressive timelines.
Assemble mechanical and fluid systems including pressure vessels, piping, valves, and heat exchangers
Perform tubing and piping integration including routing, bending, cutting, and fitting
Execute high-quality plumbing of test systems and subsea hardware (Swagelok, compression fittings, welded systems, etc.)
Install sensors, instrumentation, and support hardware for test readiness
Perform pressure testing, leak checking, and system validation (hydrostatic and pneumatic)
Support system bring-up and debugging alongside engineering teams
Read and interpret engineering drawings, P&IDs, and assembly documentation
Identify and resolve fit-up, tolerance, and integration issues in real time
Drive clean, organized, and repeatable build processes on the floor
Document builds, test setups, and issues for engineering and QA traceability
Support rapid prototyping and iteration under tight timelines
Maintain a safe working environment when operating high-pressure and high-temperature systems
5+ years of hands-on experience in mechanical assembly, fluid systems, or integration roles
Demonstrated experience assembling and testing complex mechanical or fluid systems
Strong experience with tubing, piping, fittings, and fluid system integration
Ability to read and interpret mechanical drawings and P&IDs
Experience with pressure testing, leak detection, and system validation
Strong mechanical intuition and ability to troubleshoot integration issues quickly
High attention to detail and craftsmanship in assembly work
Track record of working effectively in fast-paced, prototype-driven environments
High ownership mindset and ability to operate independently with minimal supervision
Strong communication skills and ability to work closely with engineers
Experience with orbital tube welding and/or other high-reliability welding processes
Background in high-pressure systems, process piping, or thermal systems
Experience in marine, subsea, aerospace, or energy hardware environments
Familiarity with Swagelok or equivalent fluid system standards and best practices
Light fabrication and manual machining experience (lathe, mill, drill press)
Experience supporting test operations and building custom test infrastructure
Familiarity with cleanliness standards and contamination control for fluid systems
Ability to contribute to fixture design and integration tooling
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.
Subsea Geothermal
Offices: Seattle, WA 98105, US
Based on 5561 listings with disclosed salaries, most engineering jobs in Washington pay between $100k–$239k per year. Individual offers vary with seniority, company size, and specialization.
There are currently 7,978 open engineering positions in Washington listed on Clera. New openings are added daily as companies post roles.
Companies currently hiring include Amazon, Microsoft, Blue Origin, Boeing, SpaceX, among others. Browse the listings above to see every active employer.
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