I didn’t mean to make your own plugin, but to work as a developer for an already-existing company. There are thousands of small WordPress firms that have 5-10 employees and they always seem to be hiring.
As I said, WordPress is a huge economy and there are many jobs because it’s not “cool”, the tech isn’t super exciting, and yes, the pay is definitely lower than top companies. But that also means the workload is usually lighter and it’s easier to get a job, which is what the OP was looking for.
Which probably means either 1) they're not paying enough or 2) there aren't any qualified candidates around - and as for why that is, see 1).