Babysitter - Full-time / Part-time

Looking for a nanny who ideally can speak Japanese as first language. We would be looking for help for 2-3 times a week, 5-6 hours per session. Care would be for a 6-month-old baby. To give a little background on the schedule: Mother works full time in office so will be gone from the house from 9 a.m. to 7 p.m. on weekdays. Father works remotely and will need care help from 1-6 p.m. or 1-7 p.m. on weekdays.