Open for Professionals

Companies Interested in Highly-Skilled Foreign ProfessionalsThe Hiraga Corporation

Unique tech revitalizing/extending concrete water tank life

We repair concrete water tanks. Every factory has a concrete water tank, and when they become old and need repairs, they are often torn down and rebuilt from scratch. However, by using our proprietary technology, we are able to conduct repairs so the tanks can be used for a long time without having to demolish them.

In addition, one feature our company is that we have a culture of looking to the future and always sharing wisdom and moving forward while conducting independent research, which allows sales staff and those on-site to get involved. We want you can be an executive candidate just like Japanese people, and if you return to your home country, we expect you to use the skills you have acquired at our company.

In addition, we already employ several foreign employees, and our Japanese employees actively support them. There are strong ties throughout the company, and the atmosphere is very family-like.

If you are interested, feel free to apply!


to Hire Yes


Use of

Role Expected of Highly-Skilled Foreign Professionals

  • Bridge Builder with Foreign Enterprises, such as in Expanding Overseas (Bridging Resource)
  • Management or Research & Development for Domestic Business Using Specific Professional Knowledge
  • Promoting Globalization of Japanese Staff
  • Management of Overseas Bases

Required Persons

  • Sciences (Technical Sales)
  • Sciences (Engineering)
  • Sciences (Research & Development)
  • construction


  • Construction

Business Content

We are in the business of repairing drainage equipment tanks installed in factories to extend their service life.
Drainage systems do not generate any money, so repairs are kept to a minimum. Deteriorated water tanks are often demolished and rebuilt, but they are often neglected due to costs and restrictions on space. Since that was the norm, factories were unable to consult anyone on issues. To solve this problem, we ask factories about their situation and plan and implement plans to extend the service life.
The flow of work is as follows:
*Building frame survey (compression via core collection, neutralization tests, etc.)
Preparation and submission of repair plan
*Approval and budget
*Construction planning and execution
Since the situation is the same in all factories, close to 100% of the factories where we conduct frame surveys have commissioned us for construction work.
If you live overseas, we will support you with all the travel expenses incurred when joining us.

Countries/Areas of Interest

  • Vietnam

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Our Logo


Honcho, 3-24 Yokohama, Naka-ku Kanagawa 231-0005
Tel : 045-640-0801

Company Info

Number of employees:13 people
Year of establishment:May 1974 site: a new window will open.