Avionics EMI/EMC Engineer — Impactful Defense Systems

Castelion; Torrance (CA); On-site; USD 110,000 - 150,000; Full time

Benefits offered by this job

Generous benefits package

Job summary

Castelion is hiring an EMI/EMC Engineer to own electromagnetic compatibility across our avionics hardware stack, ensuring reliable operation of flight computers, sensors, and power electronics without EMI issues.

You will integrate EMI/EMC considerations early with PCB designers, review schematics, develop mitigation strategies, and support validation testing across radiated and conducted emissions, collaborating with test teams and external labs.

Qualifications

• Bachelor's degree in Electrical Engineering or related field.
• Hands-on EMI/EMC testing and troubleshooting experience.
• Strong grounding, shielding, and EMI coupling knowledge.
• Experience with lab instrumentation.
• Experience with PCB design teams.

Responsibilities

• Integrate EMI/EMC considerations early into avionics hardware design.
• Review schematics and PCB layouts for grounding, filtering, shielding, and return path integrity.
• Develop mitigation strategies including filtering and shielding.
• Support system-level EMI risk analysis and identify interference sources.
• Plan and execute EMI/EMC validation testing including radiated and conducted emissions.
• Troubleshoot EMI issues at board, cable harness, and system levels.
• Analyze test data to identify root causes and drive design actions.
• Collaborate with avionics test engineers to refine EMI test setups.
• Develop internal guidelines to reduce EMI risk in future hardware iterations.
• Document results and recommendations.

Skills

EMI/EMC testing

Grounding & Shielding

Filtering fundamentals

Troubleshooting in labs

Cross-functional collaboration

Education

Electrical Engineering degree

Tools

Spectrum analyzers

Oscilloscopes

Signal generators

Current probes

Job description

Castelion is hiring an EMI/EMC Engineer to own electromagnetic compatibility across our avionics hardware stack, ensuring reliable operation of flight computers, sensors, and power electronics without EMI issues.

You will integrate EMI/EMC considerations early with PCB designers, review schematics, develop mitigation strategies, and support validation testing across radiated and conducted emissions, collaborating with test teams and external labs.