Some Japanese companies who have already hired many global talents don't require a high level of Japanese because they are looking mostly for translators to localise their products to their target countries. However, except in positions such as English language instructors, most positions require a level where you can communicate in basic Japanese. We encourage you to research what level of Japanese skill is required for each position.
You will often be asked if you have taken The JLPT Test (Japanese Language Proficiency Test). There are five different levels, N1 to N5. N1 is the most difficult test and only 30 % of the examinees pass the test. To pass The N1 test, you need "to have the ability to understand Japanese used in a variety of circumstances, and are able to read writings with logical complexity and/or abstract writings on a variety of topics, such as newspaper editorials and critiques, and comprehend both their structures and contents.(*)".
Many companies still require N1 and N2 levels when applying so it's a good idea that you take the test if you have confidence in your Japanese level.
※For the courtesy of JLPT (https://www.jlpt.jp/）

Some positions may require you to have equivalent skills to those that Japanese applicants are required, but that is not always the case.
For example,in positions such as programming which is said to be difficult to find young and possible talents, specific skills are highly valued more than your Japanese skill.
However, there're companies who want their staff to be able to communicate in Japanese, even if the requirement doesn't say it clearly. To avoid the gaps, it is very important to show what you can do and what level of language skills you have during the interview process. Our "Interview Recording" feature will help you to show employers who you are and what you can do and we hope you can make the most of it.

To work in Japan, you need to have a certificate of eligibility. There're 36 visa categories in Japan, and not every visa allows you to work. The visa that allows you to work is generally called a "working visa". When you try to stay in Japan for a certain period of time, you have a certain visa such as a "student" or "designated activities" visa. Before searching for a job, please make sure that your visa allows you to work, and also that it allows you to work full-time. If you need to change your visa status, there's paperwork that you or your employer has to prepare.At FUJIYAMA JOBS, most of the advertisers have already hired global talents and they can be your visa sponsor. Please read through the job descriptions carefully or ask during the interview if they can sponsor you or not before applying.
For more details of visa status in Japan (Immigration Bureau of Japan http://www.immi-moj.go.jp/tetuduki/kanri/qaq5.html)

To learn manners and "KEIGO"

There are some unique manners in Japanese business settings. We encourage you to learn the basic Japanese buiness manners before starting work in Japan. Knowing those manners will help you to communicate with your Japanese boss and colleagues. They are very important to know and could affect your assessment. Also, it is very important to use "KEIGO - polite expressions" when speaking with customers and your superiors. It might be hard to learn KEIGO if you just started to learn Japanese, but it will help you if you know the popular phrases or common greetings used in a business setting.