Senior Integration & Test Engineer (Fluids & Controls)

About Endurance

Endurance is building the worlds 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 and Robinhood. We have completed multiple deep-ocean deployments 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 both environmental impact and cost.

What youll be doing

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.

Key Responsibilities

• 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

Qualifications

• 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

Preferred Skills

• 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

Benefits & Perks

• 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 worlds most pressing challenges

• Competitive Compensation: Comprehensive salary and equity packages

• Benefits: Vision Dental Health insurance coverage

• Dive Certification: Company-sponsored recreational dive certification

Required Experience:

Senior IC