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Aurelius Systems

Test Engineer, R&D

San Francisco$130k–$170kfulltimemidAdded yesterday

About this role

Aurelius Systems seeks an embedded test engineer to design and lead R&D testing infrastructure for autonomous directed energy systems. You'll write firmware test code, build instrumentation from scratch, and own end-to-end verification across firmware, power electronics, and full-system integration as the company scales from prototype to production.

What you'll do

  • Design and build test infrastructure, HIL/SIL environments, and instrumentation setups from the ground up
  • Write embedded firmware and Python test automation code to exercise systems end-to-end
  • Lead field testing operations: setup, data collection, analysis, and failure investigations on the private 400-acre range
  • Debug across firmware, power rails, and electrical systems to root cause and validate fixes
  • Develop test plans, acceptance criteria, and readiness gates for prototype-to-production transition
  • Enforce safety procedures and partner with hardware teams on design-for-manufacturability and production readiness

What they're looking for

  • Embedded firmware development (C/C++, real-time systems)
  • Python test automation and scripting
  • Electrical bench skills: oscilloscopes, logic analyzers, power supplies, DMMs
  • Harness fabrication and test fixture wiring
  • Cross-layer debugging: firmware, power electronics, and electrical systems
  • Design-for-manufacturability (DFM) concepts
  • High-voltage and high-power test environment experience
  • Test documentation and clear technical writing
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Aurelius Systems

Aurelius Systems develops autonomous directed energy weapons systems, including laser-based counter-UAS platforms designed for field deployment. The company is hiring embedded systems engineers, power electronics specialists, electrical engineers, and mechanical engineers to build hardware, power subsystems, controls, and ruggedized structures for these advanced defense systems.

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Likely interview questions

  • Walk us through a time you built a test infrastructure from scratch—what did you design, and how did you validate it matched real-world conditions?
  • Describe a complex debugging scenario where the issue spanned firmware, power rails, and electrical. How did you isolate the root cause?
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