Three High Intern (manufacturing division)

Why don't you participate in an internship where you can experience Japanese manufacturing?

ThreeHigh Co., Ltd manufactures heaters that can be used anywhere and for any purpose. Its applications are diverse and are used in rails, adhesives, security cameras, etc. to prevent freezing.

ThreeHigh Co., Ltd is currently trying to expand overseas based on the technology cultivated in Japan.

At this stage, We are researching what products and marketing are needed while having contact with various countries.

Therefore, we would like to accept international students from various countries. This internship will allow you to experience our manufacturing at the Manufacturing Division so that you can understand our products.

Work will be carried out in a mixture of English and Japanese.

Job summary

Students will learn and practice making heaters, which is the basis of three-high.

・Study the market in your home country while understanding the technology of Three High.

・After that, At the Manufacturing Division, you will receive a lecture on how to make a heater.

・Once you get used to it to a certain extent, you can actually create a product that meets the needs of your customers.

Steps of work


Have them work for one week, twice a week, to gain an understanding of the technology.

※ In the meantime, we will input about the application scene of Three High technology


Join the Manufacturing Division and create products while learning at OJT

 Especially acquired skills

・ Understanding of Japanese manufacturing

 Future outlook

・ If you like our craftsmanship, you can get involved for a long time.

・ If you have a mind that can be a partner in the future, such as opening a local subsidiary in your home country, it is welcome!

 Application Guidelines

・ Eligible persons: International students studying at Japanese universities and vocational schools

・ Hourly wage: 1,050 yen 
※Transportation expenses are also included separately.

・ Weekdays 2 days a week or more 
  4 to 7 hours per day
  Working hours 10:00 〜 17:00
※We will respond flexibly according to the class schedule.
※Free clothing and hairstyle
※8: 30-17: 15 free shift, almost no overtime

・Work location
Nearest station Higashiyamada Station (16 minute walk)

〒224-0023  4-42-16 Higashiyamada, Tsuzuki-ku, Yokohama-shi, Kanagawa

・Training and education system
When understanding Three High's technology, you can receive input from OJT from senior employees while engaging in work

・ Period: about 1 month

・ Application conditions
  ・ Speaking English, a little Japanese
  ・ Those who are considering doing business in your home country in the future
Click here to apply for hiring and contact us
Company name ThreeHigh Co., Ltd
〒224-0023  4-42-16 Higashiyamada, Tsuzuki-ku, Yokohama-shi, Kanagawa
〒224-0023  4-42-16 Higashiyamada, Tsuzuki-ku, Yokohama-shi, Kanagawa