I applied online.
It was a take-home test that asked to build something from end to end. It takes like 8 to 12 hours. Not only do they seek an MVP, but a scalable API with public hosting! In other words, they want you to build something ready for market! It is one day of entirely unpaid work, which I felt is disrespectful of our time. I have got it done, but I do not want to submit it.
Choose a Problem
Pick the one that excites you most. These are deliberately open-ended — we want to see what directions you take and what decisions you make.
Reverse-Engineer an Undocumented API Pick any website that doesn't have a public API. Reverse-engineer how it works under the hood, then build a useful tool on top of it. Figure out the API, then build something real with it.
Fix Something Annoying Pick a website you use daily. Identify something that genuinely annoys you about it. Build a browser extension that fixes it. Find the annoyance, ship the fix.
Clone and Improve Pick one specific feature or interaction from an app you admire. Rebuild it, then make it better — faster, cleaner, more thoughtful, whatever "better" means to you. Rebuild it, improve it, and explain what you changed and why.
The following metrics were computed from 1 interview experience for the Luma AI Senior AI Engineer role in Palo Alto, California.
Luma AI's interview process for their Senior AI Engineer roles in Palo Alto, California is extremely selective, failing the vast majority of engineers.
Candidates reported having very negative feelings for Luma AI's Senior AI Engineer interview process in Palo Alto, California.