Avionics Systems Integration Engineer, Senior

Castelion Corporation•Torrance, CA

2d•Onsite

About The Position

Castelion is seeking a Senior Avionics Systems Integration Engineer to help develop next-generation hypersonic missile systems. This role is part of a cross-disciplinary team responsible for integrating avionics systems across design, development, testing, and operations. The engineer will contribute to mission-critical defense systems and support their operational readiness, including work at remote test facilities as needed. The position involves integrating and troubleshooting electrical hardware, supporting hardware-in-the-loop testing and flight operations, and assessing systems after flights. The engineer will collaborate across disciplines to improve avionics architectures and contribute to capabilities spanning power systems, sensors, vehicle networks, RF, and control systems. The role is onsite and may require occasional travel for test campaigns and customer engagements. Access to export-controlled information is required; some assignments may also require a U.S. Government security clearance or other authorization, subject to applicable requirements.

Requirements

Bachelor’s degree in engineering, physics, or a related technical field.
At least 5 years of experience in electrical component design, system integration, or electronic testing.
At least 1 year of experience using software tools such as MATLAB, Python, or C++.
Vehicle harnessing experience.
Ability to work onsite and support testing at remote facilities as needed.
Willingness to travel occasionally for test campaigns and customer engagements.
Ability to access applicable export-controlled information without requiring additional export licensing.
If the position is designated as requiring it, ability to obtain and maintain the required U.S. Government security clearance or other authorization and satisfy applicable citizenship or eligibility requirements.

Nice To Haves

Proficiency with electrical test equipment such as multimeters, oscilloscopes, and power supplies.
Creative problem-solving and ability to balance risk and make sound decisions.
Experience diagnosing and repairing avionics systems, including sensors and actuators.
Familiarity with 3D CAD tools.
Software skills for automating test or analysis processes.
Strong organizational and communication skills and ability to work in a dynamic, fast-paced environment.
Real-time operations experience in complex systems, such as flight tests or other high-consequence environments.

Responsibilities

Lead avionics integration and operational readiness from initial design and assembly through testing and field operations.
Diagnose, troubleshoot, and resolve electrical hardware issues on aggressive development timelines while driving long-term improvements.
Support hardware-in-the-loop testing, flight operations, and post-flight assessments, including real-time system health monitoring and issue resolution.
Collaborate cross-functionally to optimize avionics architectures and reduce mass, cost, and complexity.
Contribute to the development and validation of avionics capabilities, including power systems, sensors, vehicle networks, RF, and control systems.