Mechanical Design Engineer
Hop Aero (YC S26) · Orange, CA · 4 wk ago
On-siteEngineering$90k–$150k/yrFull-time
About the role
We’re looking for a hands-on Mechanical Design Engineer to own real flight and ground hardware from concept through test and iteration. This is a builder role.
Responsibilities
- Design and own mechanical hardware for flight vehicles and ground support equipment (structures, tanks, mounts, mechanisms, test hardware)
- Take parts from CAD to drawings to fabrication to assembly to test, with full ownership of outcomes
- Design for manufacturability, rapid iteration, and imperfect real-world conditions
- Support and participate in test campaigns, including on-site troubleshooting and repairs
- Work directly with propulsion and test engineers to resolve mechanical issues uncovered during testing
- Do hand calcs and run FEA simulations
- Continuously improve internal design, build, and test workflows as we scale
Requirements
- Demonstrable experience designing and building real mechanical hardware that was tested in the real world
- Strong CAD skills (SolidWorks, NX, or similar) and the ability to produce build-ready drawings
- Solid understanding of common manufacturing methods (machining, welding, sheet metal, composites, rapid prototyping)
- Comfort getting hands-on with hardware, tools, and test equipment
- Able to work independently, take ownership, and move forward with incomplete information
- Willingness to spend time in the shop and at a remote test site when needed
- Experience level is flexible; we care more about what you’ve built than how many years you’ve worked
Qualifications
- US citizen/visa only
- Direct mentorship from founders & engineers with rich flight heritage
- Fast upward mobility as the company grows
Benefits
- Competitive salary and meaningful stock options
- Healthcare, office meals & snacks
Pay
$90K - $150K
Schedule
Full-time