Avionics Engineer
Posted 5 Sep 2026
Advertised as “Avionics Engineer ”
BranchFactor Summary
The original posting with the fluff stripped out
- Management level
- Individual contributor
- Employment
- On-Site
- Contract
- Full-time
No salary listed for this role.
Study levelProfessional certification
About Poseidon Aerospace:
Poseidon Aerospace is reimagining how the world moves goods. We build and operate full-size autonomous cargo aircraft - capable of carrying two tons of payload over a thousand nautical miles. From remote communities to contested logistics operations, our platforms unlock a new cost curve for air freight, making it faster, cheaper, and accessible anywhere it's needed. Headquartered in the San Francisco Bay Area with locations in Washington DC, Oregon, and Maine; we're building something consequential.
About the role
Avionics is the electrical and electronic hardware on our cargo aircraft, its mission systems, and the ground control station that operates it. As an Avionics Engineer you will help define that architecture and then build it: power systems, flight and mission computers, actuators, sensors, datalinks, wire harnesses, and instrumentation. You will take hardware from block diagram to bench to aircraft, and support it through ground and flight test.
Responsibilities
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Contribute to the electrical and avionics architecture of the aircraft, mission systems, and ground control station
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Design and integrate power generation, storage, and distribution, and maintain the electrical load analysis
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Select and integrate flight computers, mission computers, actuators, sensors, radios, and datalinks
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Produce system schematics, interface control documents, and wire harness drawings
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Support harness fabrication, installation, and checkout on the aircraft
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Configure and troubleshoot data buses (CAN, ARINC 429, RS-232/485, Ethernet)
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Design grounding, bonding, and shielding to control EMI/EMC
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Specify and install flight test instrumentation and data acquisition hardware
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Build and maintain bench and hardware-in-the-loop test setups
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Write and run acceptance and functional test procedures for avionics hardware
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Troubleshoot hardware on the aircraft during ground and flight test, including travel to our flight test site
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Work with flight software, GNC, airframe, propulsion, and flight test on interfaces and installation
Required Qualifications
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B.S. in electrical engineering, aerospace engineering, or a related field, or equivalent experience
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2+ years designing or integrating electrical and electronic systems on vehicles (aircraft, UAS, spacecraft, or automotive)