Senior Development Test Engineer - Mechanisms (Aerospace)

Location: Torrance, CA; on-site operations required during critical test campaigns, with extended hours, weekends, and travel as needed.

Company

hirify.global develops and delivers advanced defense systems, including hypersonic strike missiles, in an early-stage, high-ownership environment.

What you will do

• Translate system and subsystem requirements into test objectives, acceptance criteria, and verification methods.
• Own development and acceptance testing for flight mechanisms.
• Design and build test stands with load actuators, instrumentation, and laboratory equipment.
• Develop automated software for instrument control, test sequencing, data logging, and analysis, preferably using Python.
• Maintain configuration control, data management, and test documentation while improving test infrastructure, automation, and data quality.
• Support flight tests and rocket motor static fires as required.

Requirements

• Bachelor’s degree in Mechanical, Electrical, Aerospace, or a related engineering field.
• 5+ years of experience developing, integrating, or testing mechanical or electromechanical hardware.
• Experience with test instrumentation and laboratory equipment, including DAQs, oscilloscopes, power supplies, and sensors.
• Experience with load cells, pressure transducers, LVDTs, and encoders.
• Strong debugging, troubleshooting, and root-cause analysis skills.
• Experience with environmental testing, including vibration, thermal-vacuum, thermal cycling, and shock.
• Ability to work across disciplines in high-ownership, fast-moving environments where hardware is the source of truth.
• Willingness to support extended hours, weekends, travel, and on-site operations during critical test campaigns.
• Access to export-controlled information is required; employment or contracting is contingent on meeting applicable U.S. export-control access and licensing requirements. Classified-information or restricted U.S. Government site access may also require security clearance, government authorization, citizenship, or other eligibility requirements when applicable.

Nice to have

• Aerospace, automotive, defense, or other high-reliability hardware testing experience.
• Flight test, range operations, or hardware-in-the-loop experience.
• Familiarity with requirements verification, qualification evidence, and failure tracking.
• Hands-on machining, wiring, soldering, or rapid prototyping experience.

Culture & Benefits

• High ownership, autonomy, hands-on rigor, and systems-level thinking.
• Focus on reliability, data quality, test repeatability, and direct failure analysis.
• Generous benefits package.
• Equal employment opportunity and reasonable accommodations throughout the application and hiring process.