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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Integration & Test Engineer (Fluids & Controls) - **Company:** Endurance - **Location:** Seattle, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Systems Engineering, Automation of Tests, Software Debugging, Firmware, Reliability Engineering, Test Data, Build Management, Enterprise Integration - **Published:** September 4, 2026 - **Apply:** https://startup.jobs/senior-integration-test-engineer-fluids-controls-endurance-energy-8131209 ## About the Role * 7+ years of experience in integration, test, manufacturing, reliability, or systems engineering roles involving complex hardware systems * Demonstrated experience leading integration and test efforts for multidisciplinary hardware programs * Strong hands-on experience with mechanical systems, fluid systems, instrumentation, electrical integration, or electromechanical hardware * Experience planning and executing hazardous testing involving pressure systems, thermal systems, power systems, rotating machinery, or equivalent high-energy hardware * Strong troubleshooting skills across hardware, controls, instrumentation, and system interactions * Experience designing and building test infrastructure, tooling, fixtures, or automated test systems * Ability to read and interpret engineering drawings, schematics, P&IDs, wiring diagrams, and assembly documentation * Strong systems-level thinking and ability to identify operational and reliability risks early * High ownership mindset with the ability to independently drive complex technical efforts under aggressive timelines * Excellent communication skills and ability to coordinate across engineering, operations, manufacturing, and field teams * Willingness to travel and support offshore and remote field operations as needed, * Experience in aerospace, subsea, marine, energy, launch vehicle, or other high-performance hardware environments * Experience operating or developing high-pressure fluid systems, thermal systems, turbomachinery, or power generation equipment * Familiarity with DAQ systems, controls integration, telemetry, and automated testing * Experience with environmental testing, vibration testing, thermal testing, or qualification campaigns * Experience with root cause analysis methodologies and reliability engineering practices * Background in manufacturing engineering or production test operations * Experience designing custom fixtures, integration tooling, or ground support equipment * Hands-on fabrication experience including machining, welding, tube bending, or structural assembly * Experience supporting offshore operations, vessel-based testing, or remote field deployments * Familiarity with high-reliability fluid system standards and practices including Swagelok or equivalent systems * Experience operating in fast-paced prototype development environments with minimal process overhead ## Description As a Senior Integration & Test Engineer at Endurance Energy, you will own the planning and execution of complex integration and test campaigns for some of the most extreme energy hardware ever deployed. You will work across mechanical, electrical, firmware, fluids, offshore operations, and manufacturing teams to bring first-of-a-kind systems from concept to validated hardware. This role combines the responsibilities of integration engineering, test engineering, manufacturing engineering, reliability engineering, and technical program execution. You will not simply support testing - you will define how systems are integrated, verified, instrumented, operated, and matured into reliable field hardware. You will be responsible for developing test architectures, designing integration and test tooling, operating hazardous test systems, debugging failures, and driving corrective actions to closure. You will lead hardware through integration, qualification, environmental testing, deployment readiness, and field operations. You are expected to operate with extreme ownership and technical judgment. This includes identifying system-level risks before they become failures, driving standardization and operational rigor, and rapidly resolving issues under aggressive schedules. This is a highly hands-on role. You will spend substantial time on the floor, in the lab, at test sites, and in the field working directly with hardware., * Own integration and test campaigns for complex mechanical, electrical, fluid, and subsea systems from initial bring-up through deployment readiness * Develop and execute test strategies, procedures, acceptance criteria, and operational plans for development, qualification, and field testing * Design and build test infrastructure including fluid systems, pressure systems, electrical harnessing, instrumentation, DAQ setups, fixtures, and integration tooling * Lead hazardous test operations involving high pressure, high voltage, rotating machinery, thermal systems, and offshore hardware * Drive system integration across multidisciplinary hardware including mechanical assemblies, fluid systems, controls, instrumentation, and power systems * Debug complex hardware failures and lead root cause investigations across mechanical, electrical, software, controls, and operational domains * Develop instrumentation plans and configure sensors, DAQ systems, telemetry, and automated test setups * Drive reliability improvements through failure analysis, operational feedback, test data review, and process standardization * Define and improve integration workflows, test processes, build standards, checklists, and operational readiness reviews * Work closely with responsible engineers to ensure designs are testable, manufacturable, serviceable, and operationally robust * Support field deployments, offshore operations, commissioning activities, and recovery operations * Operate with urgency and technical rigor to close issues quickly while maintaining safety and hardware quality * Maintain clear documentation of procedures, test configurations, anomalies, corrective actions, and lessons learned ## Related Videos - [Why I Love End-2-End Tests and How To Get Them Right](https://www.wearedevelopers.com/videos/996-why-i-love-end-2-end-tests-and-how-to-get-them-right) - [Answering the Million Dollar Question: Why did I Break Production?](https://www.wearedevelopers.com/videos/1171-answering-the-million-dollar-question-why-did-i-break-production) - [Dirty Tests And How To Clean Them](https://www.wearedevelopers.com/videos/515-dirty-tests-and-how-to-clean-them) - [Playing Pong on a shoulder press machine](https://www.wearedevelopers.com/videos/100140-playing-pong-on-a-shoulder-press-machine) - [More efficient software for more efficient microchips](https://www.wearedevelopers.com/videos/1164-more-efficient-software-for-more-efficient-microchips) - [From Zero to Mobile Developer in 45 Minutes With SwiftUI](https://www.wearedevelopers.com/videos/183-from-zero-to-mobile-developer-in-45-minutes-with-swiftui) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Top Characteristics of a Software Engineer](https://www.wearedevelopers.com/magazine/166-top-characteristics-of-a-software-engineer) - [Is Software Engineering Hard?](https://www.wearedevelopers.com/magazine/448-is-software-engineering-hard) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [What is Software Engineering?](https://www.wearedevelopers.com/magazine/289-what-is-software-engineering) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated)