Nanny position in SW18

Looking for a nanny to start in August or September. The nanny will have sole charge of my 3 year old and in the afternoon's also pick up my eldest (4.5 years old) from school. Responsibilities include preparing light meals and taking the kids to activities. Ideally the nanny will be speaking Greek as both parents are GReek and would like the kids to learn the language.

It will be 25-30 hrs a week (Wendesday 12pm-7pm and Thursday/Friday 8am-6/7pm) with potential for additional babysitting in the evenings and/or weekend if interested.