Before School or After School Work

I have three children 2,7-year-olds and a 10-year-old that need assistance getting ready for school at 630 in the morning being brought to and put on the bus at 805. The children will need to be picked up from the bus around 3 p.m. and supervised until I get home around 7:30. Nighttime duties would include preparing a simple dinner assisting with homework if needed and helping to pick up after the children. One of the children is autistic so experience with autism is a plus.