Need a Japanese freelancer

For a project involving finances and cryptocurrencies we are looking for a Japanese freelancer. We looking for a person who knows their way around a computer well and who can communicate in English and Japanese. It is required that the freelancer lives in Japan and is willing to work on an innovating project involving cryptocurrencies. The freelancer will be needed for about 5 hours per week, about 10 hours in the first week to get familiar with the system and set up operation. Please inform us about your English skills and if you have any experience with cryptocurrencies. The project will provide a good income for as long as there is good communication and cooperation over the course of several years.