Senior Avionics Hardware Engineer — Flight‑Critical

Castelion; Los Angeles (CA); On-site; USD 140,000 - 210,000; Full time

Job summary

Castelion in Los Angeles is seeking a Senior/Staff Avionics Hardware Engineer to design and own high‑speed digital hardware for mission‑critical avionics systems. You will lead architecture, board bring‑up, validation, and hardware‑software integration across multidisciplinary teams.

The role demands deep EE fundamentals, hands‑on ownership of complex embedded hardware, and the ability to thrive in a fast‑paced defense hardware environment. Onsite, competitive package.

Qualifications

• Bachelor's degree in electrical engineering or related field.
• Strong experience with complex digital or mixed-signal hardware design.
• Experience with high-speed digital systems, embedded processors, memory interfaces, and board-level architecture.
• Experience with PCB design tools (Altium preferred).
• Hands-on experience with oscilloscopes, logic analyzers, and power supplies.
• Strong understanding of core EE principles including digital systems, signal integrity, power distribution, and hardware debugging.
• Comfortable working in a fast-paced, highly collaborative environment.

Responsibilities

• Design and develop advanced board-level electrical hardware including schematic capture, PCB layout oversight, component selection, and interface definition.
• Own high-speed digital and embedded flight computer architectures including processors, memory systems, and board‑level integration.
• Perform board bring‑up, validation, debugging, and root‑cause analysis in the lab.
• Test reference boards and early prototypes using standard lab equipment.
• Drive signal integrity, power integrity, and hardware reliability considerations throughout the design lifecycle.
• Work with avionics, embedded software, test, and manufacturing teams to iterate designs quickly.
• Support hardware/software integration and troubleshooting across avionics platforms.
• Document designs, test results, and engineering changes clearly.

Skills

High-speed digital

Embedded processors

PCB design

Oscilloscopes

Digital HW

Board architecture

Flight computer architecture

Education

Bachelor's degree in electrical engineering

Tools

Altium Designer

Logic analyzers

Power supplies

Job description

Castelion in Los Angeles is seeking a Senior/Staff Avionics Hardware Engineer to design and own high‑speed digital hardware for mission‑critical avionics systems. You will lead architecture, board bring‑up, validation, and hardware‑software integration across multidisciplinary teams.

The role demands deep EE fundamentals, hands‑on ownership of complex embedded hardware, and the ability to thrive in a fast‑paced defense hardware environment. Onsite, competitive package.