I started applying for jobs. As I have over 150 repos on GitHub and 10 years of relevant work experience, the company obviously had trouble validating if I had some basic coding skills. That's why they decided to send me a coding "homework" task to build an app in React Native.

Basically, the task was building an app with 2 screens and one bonus where they indicated "doesn't need a UI". I spent half a day spinning up their project, installing XCode, their specific versions of Ruby, and around half a day building the thing.

Obviously, I wanted to demonstrate my technical skills, so I added a few tests, proper typing, comments, and so on. The project was in a good state, and on the "bonus" screen I quickly added a few components. Since I have a lot of things going on, I capped the amount of time to one day of work. I felt it was good enough to demonstrate I can build something like this.

A few days later, I received a response from the recruiter telling me they wouldn't move forward. She in depth explained that this was because of a missing key property. I did indeed miss one key property on the "bonus" screen, in the part that was not even part of the core task. This was a list of very few static elements, and the entire list only got rerendered when changing routes. Basically in this case, there would not be any visible performance impact.

The recruiter explained in the email that I was missing the eye for detail they need, and that I should "educate" myself more about lists in React. I made one tiny silly mistake in a one-day project, that a linter would've taken out (if this project had one). I've contributed to React Native myself and worked with React for almost 7 years now? Yeah, it's a stupid thing, but what is the point of these types of tasks? I thought this was to demonstrate my skillset, not to be called out on.

Either way, my question here is this: at which point does it become appropriate to send an invoice for the time I wasted on this?