A tattooed college professor in Japan?

I am going to be finished with graduate school in about two years and wanted to apply to work at some international schools (K-12) and international universities in Japan. I know that tattoos are generally considered taboo in Japan and I am afraid that having a visible tattoo will make finding and keeping a job difficult. I already have a cherry blossom on my foot (which is not visible when I wear shoes) but I am planning on getting another tattoo on my wrist. I used to live in Japan, so I am aware of the social stigma--would this also exist at an international school/university?