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About the role

Avionics Hardware Engineer Castelion is redefining defense development through rapid iteration, aggressive testing, and modern commercial manufacturing at scale. We design, build, and test next-generation long-range strike weapon systems to give the United States and its Allies a decisive advantage and deter future conflicts. We are hiring Avionics Hardware Engineers to own flight-critical electronics across design, bring-up, test, and integration. This role is intended for engineers with experience in complex electronic systems who can take responsibility for avionics subsystems and operate effectively in a high-tempo development environment. Engineers in this role may own areas such as motor controllers, avionics backplanes, power distribution, or outward-facing avionics test and integration.
Responsibilities:
  • Own avionics hardware from architecture and schematic design through PCB layout, bring-up, and production support
  • Drive design decisions including component selection, interfaces, and system tradeoffs
  • Lead hardware bring-up, debugging, and root-cause analysis across lab, integration, and flight test
  • Collaborate cross-functionally to ensure avionics hardware meets performance, reliability, and mission requirements
  • Define and execute hardware validation strategies appropriate to development and flight maturity
  • Produce clear technical documentation covering designs, test results, and engineering changes
  • Partner with manufacturing and suppliers to transition hardware from prototype to production
  • Continuously improve designs based on test results, field data, and evolving requirements
Basic Qualifications:
  • Bachelor's degree in electrical engineering or related field
  • Proven end-to-end ownership of avionics or high-reliability electronic hardware
  • Strong experience with PCB design, bring-up, and lab debugging
  • Ability to operate autonomously and drive hardware issues to closure
Preferred Qualifications:
  • Avionics, aerospace, missile, space, automotive, or defense hardware experienceExperience with motor controllers, backplanes, power electronics, or flight hardware
  • Familiarity with MIL-STD or aerospace hardware standards (e.g., DO-254 exposure)
  • Embedded systems or FPGA-adjacent hardware experienceExperience supporting hardware in integration, test, or flight environments

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