Well, I had N3 when I applied for the job in 2018. It was tough. I’ve always been really inconsistent with studying, and I was terrible at speaking (still am relatively, but I’ve gotten significantly better since then).
I had to report to my boss every day in Japanese though, and talk to most of my other coworkers in Japanese, and so I slowly got better. The office is majority Japanese with four foreign hires.
My weakest area has always been kanji. I’m doing WaniKani now as a kind of, “Okay, let’s finally get kanji settled” sort of thing. I feel like I’ve known more than 80% of all the vocabulary I’ve seen so far on WaniKani… but I barely know any of the kanji.
I actually started WaniKani back in 2013. I wish I would’ve stuck with it.
I took N2 this month. I don’t feel confident that I passed (largely due to the kanji problem), but I don’t feel sure that I failed either.