These are positions at Joetsu University of Education, for specialists in English language education. There are no requirements related to nationality or native-speakership, but fluency and literacy in BOTH English and Japanese are essential.
For details, please visit the website through the link below, read the general guidance there, find the links to the two relevant positions, and download the PDF for each position. No English translations of the documents can be provided. The PDFs contain contact details for submission as well as inquiries about each position. You can apply for both positions simultaneously. You need to be able to live in the local area.
Please refer to the PDFs downloadable from the institution's website.