Why Castelion, Why Now

Castelion is moving incredibly fast to develop and deliver advanced defense systems at a time when execution matters more than ever. We believe focus, ownership, and excellence are decisive advantages - and we're building a world-class team to turn bold ideas into real capability.

This is a rare opportunity to join at an early stage, where you'll have significant ownership, collaborate with exceptional teammates, and make a direct, measurable impact on our mission and the future of the company - regardless of your function.

Avionics Integration Technician

Castelion is looking for an Avionics Integration Technician, reporting to the Manager, R&D Operations, to support the development and production of systems required for long-range hypersonic strike vehicles. This will be a full-time, non-exempt position located in our Torrance, California facility.

As an Avionics Integration Technician, you will work closely with engineering and manufacturing teams to assemble, integrate, test, and troubleshoot avionics hardware and electrical systems in support of development and production activities. This role is focused on hands-on vehicle and subsystem integration while supporting rapid development efforts and maintaining high standards of quality and workmanship.

Responsibilities

Integrate avionics hardware, wire harnesses, electrical subsystems, and electro-mechanical assemblies into vehicle and test configurations
Perform electrical troubleshooting, continuity verification, and functional testing of avionics systems and support equipment
Execute manufacturing and integration processes according to work instructions, drawings, schematics, and engineering documentation
Support development builds, prototype integration activities, environmental testing, and transition into initial production
Install, route, secure, and terminate wire harnesses and cable assemblies in accordance with engineering requirements and workmanship standards
Support HiPot, insulation resistance, and electrical acceptance testing activities as required
Read and interpret schematics, wiring diagrams, assembly drawings, and controlled documentation
Identify hardware, integration, and test issues and escalate discrepancies to engineering or manufacturing leadership
Support process improvement initiatives focused on integration efficiency, quality, and repeatability
Maintain a clean, organized, and ESD-compliant work environment
Monitor work progress against schedules and support production priorities as needed

Basic Qualifications

2+ years of avionics technician, integration technician, aerospace manufacturing, or related hands-on experience
Experience reading electrical schematics, wiring diagrams, and harness drawings
Experience with avionics hardware integration, harness routing, and electrical assembly
Familiarity with IPC-610 and IPC-620 standards
Ability to follow work instructions, engineering drawings, and controlled documentation
Strong attention to detail and workmanship quality
Experience working in an ESD-controlled manufacturing environment
Ability to work effectively in a fast-paced development and production environment

Preferred Skills and Experience

Experience in aerospace, defense, or other highly regulated industries
Experience integrating flight hardware, prototype hardware, or test systems
Experience troubleshooting electrical or avionics systems at the subsystem or vehicle level
Familiarity with manufacturing documentation and configuration-controlled environments
Experience supporting engineering development builds and rapid iteration efforts
Familiarity with environmental test activities such as vibration, thermal, or vacuum testing
Familiarity with Atlassian tools such as JIRA and Confluence
Basic understanding of electronic troubleshooting and diagnostics
Strong communication and teamwork skills
Ability to adapt to changing priorities and evolving hardware designs

Castelion offers a generous benefits package. Please refer to the bottom of our Careers page for more details.