Live-in or live-out nanny needed ASAP

Family based in NW1 is looking for a part time nanny to look after their two children (4 and 6). The position can be live in or live out. The ideal candidate will be native French with fluent English.
Days and hours: Mon to Fri 4pm til 7pm Wed 12-7pm. 20 to 25 h per week. Additional hours in the morning( if live in) and some babysitting or housekeeping if nanny would be interested.
Duties: general nanny duties, pick up from school, help with homework, proposing activities and games, preparing the dinner.
Requirements: ideal candidate will be experienced, confident driver and able to manage daily routine of the children, help with homework of the boy, able to help him with focusing on his work.
To start ASAP.