after-school pickup (+ babysitting)

We are looking for someone to pick up our son (first grader) after school, from Nixon elementary (on Stanford campus) and take him (by car or bike with him; using our car/bike is an option) to an after-school program (Cornerstone), 2.5 miles away (8 min by car).
Ideal Nixon pick-up times are M, Tu, Th ~2:30pm (or by 3pm) and W,F ~1:15 (or by 3pm).
We especially need M, Tu, Th, but M-F would be fantastic.
Starting August 19 ideally.

Secondarily, it'd be wonderful if, on some weekdays, someone could pick-up our first-grader and/or our pre-schooler BY 5:30-6p (by car, or possibly bike), and return to our south Stanford campus home (all within a 3 mile radius).
We are also open to having a regular schedule for babysitting, if of mutual interest.
Thanks!