I applied online and was contacted by a technical recruiter. After an initial phone screen, I was set up to talk with the hiring manager. They then wanted to move forward with the process and gave me an iOS project challenge to complete within 10 days. I implemented the challenge, delivered great code with comments, wrote test cases, and even had time to design the UX.

This was two months ago.

I haven't received any feedback or response on the project, despite requesting a status from the recruiter several times within those two months. I don't mind if the project wasn't a good fit for them. I do care when they don't even let the candidate know. They just disappeared.

That's very unprofessional and truly incompetent! I wouldn't recommend applying for an engineering position at Uber in the Netherlands.

Implement project challenge within 10 days.