Avionics Engineer — Autonomy & Flight Systems

Poseidon Aerospace; California (MO); On-site; USD 110,000 - 150,000; Full time

Benefits offered by this job

Competitive salary and equity

Relocation support

Employee Health Benefit Plans

6% Retirement matching

Flexible PTO

Free lunches, snacks, and a stocked-fr

Job summary

Poseidon Aerospace in the San Francisco Bay Area is seeking an Avionics Engineer to contribute to the design, integration, and validation of our autonomous cargo aircraft avionics systems.

You will own the integration of flight computers, sensors, actuators, and communication suites, develop wiring diagrams and ICDs, and support HIL testing, EMI/EMC mitigation, and bench-to-bird activities with cross‑functional teams.

Qualifications

• Background in integrating complex electronic systems on vehicles (aircraft, UAVs, or high‑performance automotive).
• Proficiency with schematic capture and harness design tools (Altium, AutoCAD Electrical, Capital).
• Comfort using lab equipment (multimeters, oscilloscopes, logic analyzers) to debug hardware and signals.
• Ability to assess how sensor sampling rate changes affect flight controllers and displays.
• Strong communication skills to explain trade-offs to non‑electrical teammates.

Responsibilities

• Own integration of flight computers, sensors, actuators, and comms into a cohesive aircraft system.
• Develop wiring diagrams, interconnect drawings (ICDs), and system schematics.
• Configure and troubleshoot data bus architectures (CAN, ARINC 429, RS-232/485, Ethernet).
• Support electrical load analysis and EMI/EMC mitigation across the airframe.
• Assist bench-to-bird testing, build test harnesses, breadboards, and perform HIL testing.
• Act as technical liaison between software, mechanical structures, and flight test pilots.
• Diagnose gremlins during ground and flight testing using oscilloscopes and data logs.

Skills

Schematic capture

Harness design

Lab instrumentation

Sensor integration

Communication skills

Tools

Altium

AutoCAD Electrical

Capital

Job description

Poseidon Aerospace in the San Francisco Bay Area is seeking an Avionics Engineer to contribute to the design, integration, and validation of our autonomous cargo aircraft avionics systems.

You will own the integration of flight computers, sensors, actuators, and communication suites, develop wiring diagrams and ICDs, and support HIL testing, EMI/EMC mitigation, and bench-to-bird activities with cross‑functional teams.