Test Specialist – Environmental Lab

Castelion Corporation•Torrance, CA

About The Position

Castelion is seeking a hands-on Test Specialist to support development, qualification, acceptance, and production testing of flight hardware in a fast-paced environmental test setting. The role involves preparing and executing vibration, shock, and modal tests, troubleshooting test issues, and helping deliver reliable flight and mission systems. The specialist works directly with test and design engineers, technicians, manufacturing personnel, and quality teams, using complex test equipment, mechanical fixtures, instrumentation, and data acquisition systems.

Requirements

High school diploma or equivalent.
At least two years of experience in aerospace, defense, aviation, automotive, manufacturing, laboratory testing, or a related technical environment.
Hands-on experience operating test equipment, mechanical systems, instrumentation, or data acquisition systems.
Ability to read engineering drawings, work instructions, schematics, test procedures, and equipment documentation.
Ability to use common hand tools and calibrated torque tools.
Strong attention to detail and commitment to following approved procedures.
Ability to troubleshoot problems systematically and communicate findings clearly.
Ability to work effectively in a team-based, schedule-driven environment.
Ability to lift, handle, and position test hardware and equipment in accordance with applicable safety procedures.
Knowledge of and ability to use PPE when required.
Ability to access applicable export-controlled information without additional export licensing being required.

Nice To Haves

Experience testing aerospace, automotive, defense, or other high-reliability hardware.
Environmental testing experience, including MIL-STD-810H vibration, thermal-vacuum, thermal cycling, shock, salt fog, and sand and dust tests.
Experience using accelerometers, strain gauges, load cells, force transducers, thermocouples, and signal-conditioning equipment.
Ability to identify process improvements and suggest workflow improvements to engineers.
Familiarity with acceptance, qualification, and development test campaigns.
Familiarity with requirements verification, qualification evidence, and failure tracking.
Familiarity with vibration control and data acquisition platforms such as Vibration Research, Data Physics, LDS, Unholtz-Dickie, NI, and Dewesoft.

Responsibilities

Perform acceptance and qualification test procedures on aerospace and defense hardware.
Program and operate electrodynamic shakers, vibration controllers, shock systems, modal test equipment, and associated data acquisition systems.
Execute sine, random vibration, sine burst, shock, modal survey, resonance search, and other dynamic test profiles.
Verify test article configuration, fixture interfaces, sensor orientation, cable routing, calibration status, and test setup documentation.
Monitor test execution in real time, including control response, cross-axis motion, fixture behavior, response limits, and abort criteria.
Review time histories, frequency spectra, power spectral density plots, transmissibility, and frequency-response data for anomalies.
Maintain complete and accurate test records, including setup photographs, calibration data, channel lists, configuration data, deviations, and results.
Participate in 5S, safety, tooling, process-improvement, and laboratory-efficiency initiatives.
Maintain a clean, organized, and safe test area in accordance with company and facility requirements.
Work with cross-functional teams to meet test schedules and program milestones.