Quantum Space is seeking a GSE Test Engineer II to support the development and validation of electric propulsion (EP) technologies. This role is a strong fit for an engineer coming from a flight hardware integration and test background - someone who has written procedures, run environmental test campaigns, and worked hands-on with complex systems in controlled environments. You'll bring that discipline and rigor to building and operating our in-house EP test capability.
Where You'll Make an Impact- Design and develop GSE and test infrastructure for electric propulsion systems, including thrusters, feed systems, and support equipment
- Set up, configure, and operate vacuum chamber test environments for EP testing
- Write and own test procedures, safety documentation, and operational workflows
- Execute EP test campaigns end-to-end: integration, operation, data collection, and troubleshooting
- Operate and maintain vacuum systems including turbo, cryo, and roughing pumps, valves, and gauges
- Troubleshoot vacuum performance issues including leaks, contamination, and system instability
- Support instrumentation and data acquisition system implementation
- Contribute to test system requirements covering vacuum performance, thermal constraints, and instrumentation
- Work cross-functionally with propulsion, mechanical, electrical, and AI&T teams to support test readiness
What It Takes- BS in Mechanical Engineering, Aerospace Engineering, or a related technical field
- 3-7 years of hands-on integration and test experience, including environmental testing (thermal vacuum, vibration, EMI/EMC, or similar)
- Experience writing and executing test procedures for complex hardware
- Familiarity with vacuum systems or thermal vacuum chamber operations
- Ability to interface across engineering disciplines - mechanical, electrical, thermal - in a test environment
- Comfortable working hands-on with flight-grade or high-precision hardware
- Strong attention to process, documentation, and operational safety
- Located in or willing to relocate to the LA area
Nice-to-Have Experience- Any exposure to electric propulsion systems or concepts
- Experience with GSE design or fabrication
- Familiarity with LabVIEW, PLCs, or data acquisition systems
- Exposure to gas delivery or high-voltage systems
- Contamination control and cleanroom experience
What You'll Get- Hands-On Ownership - Real responsibility on live test hardware from day one
- Impact - Direct contribution to core spacecraft propulsion technology
- Growth - Expand from instrument I&T into propulsion systems and space vehicle test infrastructure
- Compensation - Competitive salary, equity, and comprehensive benefits
Location: Hawthorne, CA
Base Salary: $100,000 to $150,000 depending on experience
