> Markdown version of [/jobs/ext/2716604-test-design-engineer-ii](https://www.wearedevelopers.com/jobs/ext/2716604-test-design-engineer-ii). 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 Design Engineer II - **Company:** Astro Mechanica Corp. - **Location:** San Francisco, CA, United States - **Experience:** Experienced - **Contract:** Permanent contract - **Skills:** Computer-Aided Design, Test Data, Model Validation, Hardware Testing - **Published:** September 4, 2026 - **Apply:** https://startup.jobs/test-design-engineer-ii-astro-mechanica-8299935 ## About the Role * 2+ years hands-on experience with propulsion, fluidic, or mechanical systems, including hardware testing and analysis * Experience with hazardous environments (flammables, high voltage, pressurized systems) and safety mitigations * Knowledge of fluid systems hardware and instrumentation (pressure, temperature, load cells, relays, solenoids, pneumatics) * Ability to analyze and interpret test data, and correlate results with analytical models or simulations * Familiarity with CAD and ability to design simple test hardware, fixtures, or modifications * Takes initiative for continuous improvement (not just completing assigned tasks) * Flexibility to work in fast-paced environment * Attentive to detail and maintain a high level of quality in all work ## Description Astro Mechanica is looking for a Test Engineer to join our growing team. The ideal candidate is someone who designs, fabricates, operates, and improves the test infrastructure supporting our innovative jet engine and subsystems. Your work at Astro Mechanica will keep test operations running smoothly, while constantly expanding and improving test capabilities. You will work closely with your peers to execute projects to a high level of quality. In this role, your mission will be to create and operate test infrastructure for hardware research and development. You will have firsthand responsibility that every new design is rigorously tested to ensure quality and performance metrics are met prior to aircraft integration and before leaving the ground. You embody the test-like-you-fly philosophy. WHAT YOU'LL DO: * Design test stands, fixtures, and supporting hardware to enable new test capabilities * Conduct analyses for appropriate fluid system component performance * Develop detailed test plans, instrumentation schemes, and data collection methods to capture high-fidelity, decision-driving data * Document work (P&ID, electrical schematics, test procedures) while collaborating with relevant stakeholders to ensure stand requirements are met * Work closely with propulsion design engineers to validate models, characterize performance, and inform design iterations * Conduct hardware testing and analyze results to verify requirements, identify discrepancies, and determine corrective actions * Create and implement test strategies to validate and activate your test stand designs * Implement safety best practices through engineering controls ## Related Videos - [The Algorithm That Nearly Killed Me: When Testing Isn't Enough](https://www.wearedevelopers.com/videos/2110-the-algorithm-that-nearly-killed-me-when-testing-isn-t-enough) - [Dirty Tests And How To Clean Them](https://www.wearedevelopers.com/videos/515-dirty-tests-and-how-to-clean-them) - [Introduction to Responsible AI: Balancing Value and Risk](https://www.wearedevelopers.com/videos/1972-introduction-to-responsible-ai-balancing-value-and-risk) - [WeAreDevelopers LIVE - Modern DevOps for IoT Devices and More](https://www.wearedevelopers.com/videos/1805-wearedevelopers-live-modern-devops-for-iot-devices-and-more) - [More efficient software for more efficient microchips](https://www.wearedevelopers.com/videos/1164-more-efficient-software-for-more-efficient-microchips) - [Building a hypercar from scratch](https://www.wearedevelopers.com/videos/607-building-a-hypercar-from-scratch) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [How software is steering vehicle technology](https://www.wearedevelopers.com/magazine/515-how-software-is-steering-vehicle-technology) - [Dev Digest 129 - Now that's what I call private data!](https://www.wearedevelopers.com/magazine/468-dev-digest-129-now-that-s-what-i-call-private-data) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Dev Digest 236: Load-Bearing Verschlimmbesserung, Asteroids and Drive-bys…](https://www.wearedevelopers.com/magazine/761-dev-digest-236-load-bearing-verschlimmbesserung-asteroids-and-drive-bys)