Flight Test Engineer at Castelion in Torrance, CA
- Company: Castelion
- Location: Torrance, CA
- Posted: Sep 17, 2026
- Type: Full-time
- Experience: 2+ years
Overview
As a Flight Test Engineer at Castelion, you will be working within the Test Operations and Logistics team to execute a rapid iterative development and test campaign. You will work alongside a test director to plan and execute flight tests, following best practices and processes to document and commu…
Job description
- As a Flight Test Engineer at Castelion, you will be working within the Test Operations and Logistics team to execute a rapid iterative development and test campaign. You will work alongside a test director to plan and execute flight tests, following best practices and processes to document and communicate to internal and external stakeholders. This role is hands-on and collaborative, working closely with engineering design teams to ensure flight tests provide the insight in vehicle performance required to rapidly close on a production design.
Responsibilities
- Develop, coordinate and execute test procedures and instrumentation/test setup diagrams for flight tests.
- Support hardware integration of avionics, telemetry, propulsion, and flight control systems into flight test articles and ground test setups (vehicle/hardware in the loop).
- Oversee pre-flight integration, ground control setup, instrumentation setup, and configuration control of test articles.
- Participate in flight readiness reviews, test planning meetings and technical interchange sessions with internal and government stakeholders.
- Ensure proper documentation of test anomalies, root cause investigations, and corrective action implementation.
- Support real-time mission control operations, including monitoring and troubleshooting telemetry data streams.
Requirements
- Bachelors degree in Aerospace, Mechanical, Electrical Engineering (or related field).
- 2+ years of relevant experience in missile, rocket, or flight vehicle testing.
- Hands-on experience with flight test instrumentation, telemetry systems, and ground control stations.
- Hands-on experience with operation of ground support equipment (electrical, hydraulic and/or pneumatic).
- Exceptional attention to detail with clear written and verbal communication skills.
- Proven ability to operate in a fast-paced, multidisciplinary test environment.
- Ability to travel domestically up to 50 percent of time.
- Active U.S. Secret (or higher) security clearance or eligibility to obtain one.
- Experience interfacing with U.S. DoD customers and government flight test organizations.
- Familiarity with MIL-STD-1553, Ethernet, and serial (CAN) communication protocols.
- Experience with command-line interface in a Linux environment.
- Experience with troubleshooting RF systems using equipment such as a spectrum analyzer.
- Experience with troubleshooting ground support equipment (electrical, hydraulic, and/or pneumatic).
- Experience with troubleshooting and repair of electrical harnesses and cabling.
- Experience with data reduction scripting tools such as MATLAB or Python.
Skills
Required
- Flight test instrumentation
- Telemetry systems
- Ground control stations
- Attention to detail
- Written and verbal communication
- Travel up to 50% domestically
Preferred
- Troubleshooting ground support equipment
Benefits
- Castelion offers a generous benefits package. Please refer to the bottom of our Careers page for more details.
About Castelion
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.