Well, can you understand the job posting? [1] It’s written in Japanese, so if you can’t read it, you’re probably not qualified to work in Japan. Some companies do hire non-Japanese speakers if your main goal is visa sponsorship to move here, but that’s not a great idea. You really need enough Japanese to get by, handle taxes, see a doctor, manage your bank account, and read emergency instructions in case of an earthquake or tsunami. It’s better to learn the language before you make the move.