Caroline, looking for a childcarer - EC1V London

We are looking for an evening babysitter for our 7 year old daughter in Angel.
Some after school childcare will also be required, which will involve collecting from school, supervising homework, taking to clubs, and sometimes preparing dinner. This would be from 3.30pm, except on the days where she has after school clubs as this would be later. At the moment, this requirement is a bit irregular as we work from home, and could be anything from 1-4 times per week, but it will become more regular over the coming months.
A few extra hours could also be available for chores such as ironing and dog walking if desired.
We are looking for someone who is prepared to be flexible and work at short notice, so someone that lives close by would be preferred.