Looking for a nanny for 12 month old twin boys in N16 from September

[Rups2011]

Hi

We are looking for a nanny to help look after our 12 month old twin boys for 4 days a week (Tuesday to Friday) from mid September when I return to work.
We live in N16, close to Newington Green.
Requirements:
Fluent English (spoken and written)
Minimum 3 years experience and 2 references
CRB check and first aid certificate essential
Twin experience a plus, although not essential
Ideally Ofsted registered (or willing to register)
Someone local preferred
Flexibility to work overtime (for additional payment) on occasion important

If you know of someone who may be interested or have any suggestions about where to look, I would love to hear from you.

Thanks