> Markdown version of [/jobs/ext/4627379-integration-test-specialist](https://www.wearedevelopers.com/jobs/ext/4627379-integration-test-specialist). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Integration & Test Specialist - **Company:** Endurance - **Location:** Seattle, WA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Software Debugging, Rapid Prototyping Process, System Testing, Systems Integration, Integration Tests, Build Process - **Published:** November 7, 2026 - **Apply:** https://www.careerbuilder.com/job-details/integration-test-specialist-seattle-wa--a08fc720-2475-440b-ae4b-0163437b7db8 ## About the Role Integration Testing, Environmental Impact, Geothermal Power, Manufacturing, Power Plant, Drilling, Apple, Electrical Engineering, Integration Testing, Testing, * 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 ## Description 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