> Markdown version of [/jobs/ext/4249437-test-engineer-ii-vehicle-stages](https://www.wearedevelopers.com/jobs/ext/4249437-test-engineer-ii-vehicle-stages). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Test Engineer II, Vehicle Stages - **Company:** Firefly Aerospace - **Location:** Bertram, TX, United States - **Experience:** Experienced - **Contract:** Permanent contract - **Skills:** Data Analysis, Data Display Debuggers, Subsystems, 2d Design - **Published:** October 22, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=f9d458508094816b ## About the Role * MS, or BS in Engineering or related engineering discipline * Minimum 3 plus years of hands-on experience with liquid rocket propulsion test operations, including test planning, execution, and data analysis * Experience building, troubleshooting or operating fluid systems * Experience with Cryogenic systems * Works well in a collaborative multidisciplinary environment * Exceptional comprehension of engineering fundamentals * Exceptional writing and verbal communication skills * Experience with 3D and 2D CAD software * Ability to lift 30 pounds and to be on your feet all day when required * Ability to work on test stands and use standard mechanical and electrical tools * Willingness to travel to support launch operations in California. (Max, 25%) Desired * Ability to read and understand technical drawings, including GD&T and P&IDs * Experience with test plan generation * Experience with ASME B31.3 * Experience as a Ground Controller or Vehicle Controller supporting Launch Vehicle operations * Experience with high pressure compressible gas systems * Knowledgeable with liquid fueled launch vehicle subsystems * Knowledgeable with Rocket Engine testing fundamentals * Ability to perform computations for fluid systems (e.g., pressure drop, valve timing, etc.) for liquids, cryogenic liquids, and gases * Independent, driven and able to develop solutions with minimal guidance and oversight * Able to prioritize and execute tasks in a high pressure fast-paced environment * Familiarity with instrumentation and instrumentation deployment methods * Familiarity with data acquisition and control methods, and data analysis tools ## Description * Set up and perform tests on a wide range of small valves, mechanisms, COPVs, and other Aerospace components * Develop test procedures to check out and operate launch vehicle systems and subsystems * Develop Autonomous sequencing for test stand automation * Execute test plans and procedures on console, using voice comm systems and data display and control systems * Develop and execute system validations, activations, upgrades and other tests required to ensure your stand is ready to support testing * Manage test stand scheduling for operations and maintenance down time * Participate in resolving any issues and non-conformances that arise during operations, and support failure and anomaly investigations, troubleshooting and resolution development * Design and develop automated scripts that support test and launch operations * Work with test site and launch site responsible engineers to optimize test and launch systems designs and operation * Identify continuous improvement opportunities for performance, reliability, and cost * Ensure all operations are performed on time, safely and in a professional manner * Analyze and review data to ensure that hardware is operating as expected utilizing numerical data analysis tools to interpret test results