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E-Space · 1 day ago

Senior Test Engineer — FSW/Avionics HIL

Saratoga, CA

Full-time

Onsite

Senior Level

$130K/yr - $190K/yr

5+ years exp

E-Space is a company focused on making connectivity from space universally accessible and secure. The Senior Test Engineer will be responsible for designing, building, and troubleshooting electronic test hardware and ensuring the performance of avionics and subsystems for spacecraft.

Information ServicesSatellite Communication

Growth Opportunities

No H1B

Responsibilities

Design and build electronic test hardware—including HIL benches, flat-sat interfaces, and custom test fixtures to verify and validate spacecraft avionics and subsystems

Develop and maintain automated test control software using Python (primary), LabVIEW, or MATLAB to streamline execution and data collection

Troubleshoot and diagnose hardware issues across analog, digital, and RF interfaces; perform root-cause analysis using oscilloscopes, logic analyzers, and network analyzers

Execute “test-like-you-fly” scenarios to validate FSW–hardware interactions, timing, and fault management

Support prototype, qualification, and flight test configurations, optimizing setups for repeatability and robustness

Participate in on-orbit checkout and RF subsystem validation, including link verification and payload throughput analysis

Capture, analyze, and document test data to assess performance trends and improve test coverage

Manage test scripts, configurations, and documentation using version control systems (e.g., Git)

Collaborate closely with design, software, and AI&T teams to translate system requirements into detailed hardware-level verification procedures

Drive continuous improvement in test hardware design, automation, and system reliability across multiple spacecraft builds

Qualification

HIL test systemsPythonAvionics interfacesLabVIEWMATLABTest automationGitTroubleshootingAnalytical mindsetCommunication skillsDetail-oriented

Required

5+ years of experience in spacecraft, aerospace, or high-reliability electronic hardware testing and integration

Proven experience designing, building, and troubleshooting HIL or flat-sat electronic test systems for avionics and FSW validation

Strong hands-on skills with electronic test instruments (oscilloscopes, logic/network analyzers, power supplies, etc.)

Proficiency in Python for test automation (required); LabVIEW or MATLAB experience a big plus

Solid understanding of avionics interfaces (CAN, RS-422, Ethernet, SpaceWire, etc.) and RF fundamentals (telemetry/command systems, impedance matching, S-parameters, gain, noise figure)

Familiarity with embedded systems, real-time simulation environments, and test automation frameworks

Strong debugging and analytical mindset bridging hardware, firmware, and software

Experience with Git-based workflows, test data analysis, and structured documentation