Senior Avionics Test Engineer — Hardware Validation

Castelion; Torrance (CA); On-site; USD 120,000 - 160,000; Full time

Job summary

Castelion is seeking a Senior Avionics Test Engineer in Torrance to architect and execute comprehensive hardware test capabilities, moving avionics from prototype to production. You will own test requirements, develop ATE, and collaborate across electrical, controls, software, and mechanical teams.

The role blends hands‑on lab work with system‑level reasoning, requiring independent work and leadership of cross‑functional test integration.

Qualifications

• B.S./M.S. in Electrical, Mechanical, Mechatronics, Aerospace, or related
• Experience testing high‑power subsystems, high‑speed digital interfaces, actuators, or RF hardware
• Hands‑on experience developing automated test equipment using instruments such as oscilloscopes, DMMs, power supplies, loads, switch matrices, network analyzers, etc.
• Familiarity with embedded control systems and interfaces (CAN, RS‑422/485, SPI, Ethernet)
• Experience with instrumentation control and data acquisition (Python, C++, protobufs, scripting)
• Ability to work independently and lead cross‑functional test integration

Responsibilities

• Develop and execute test plans at component, subassembly, and integrated system levels
• Design and build test fixtures, HIL environments, and automated test rigs
• Validate hardware performance across electrical, digital, mechanical, and RF metrics
• Instrument and log tests to ensure precision and traceability
• Lead failure analysis and root‑cause investigations
• Support hardware teams by feeding test results back into design cycles
• Drive qualification and environmental test campaigns (thermal, vibe, EMI)
• Deploy and validate automated test equipment for boards and sub-systems

Skills

Independent work

Cross-functional collaboration

Test system integration

Embedded control familiarity

Python

C++

Scripting

Education

B.S./M.S. in Electrical, Mechanical, Mechatronics, Aerospace, or related

Tools

Oscilloscopes

DMMs

Power supplies

Loads

Switch matrices

Network analyzers

SCPI/VISA/PyVISA

Job description

Castelion is seeking a Senior Avionics Test Engineer in Torrance to architect and execute comprehensive hardware test capabilities, moving avionics from prototype to production. You will own test requirements, develop ATE, and collaborate across electrical, controls, software, and mechanical teams.

The role blends hands‑on lab work with system‑level reasoning, requiring independent work and leadership of cross‑functional test integration.