Online Math Lessons for Boy 16, IB programme

We are looking for a qualified Math teacher to give Online Math lessons to Boy 16 following IB programme. The boy is fluent in English. Schedule is 3 days a week (can be more if needed) 90 minutes a day. Available times in the evening Moscow time on weekdays, and on weekends any time. Salary is from $60 per hour negotiable. We are looking for a native English speaker, qualified Math teacher with experience teaching IB and online teaching experience.