Regular evening help needed

We are looking for regular after kinder & evening help initially starting 2 days per week for 3 hours each evening (exact time and days flexible but approx 4-7 or 4.30-7.30 and ideally Wed and Thurs, or otherwise Monday).

Mostly we would like an extra pair of hands while Mum is home with newborn (3 week old), 2 and 5 year old. No housework required and job may involve for example playing with or bathing two older kids while Mum feeds baby or holding baby while Mum spends time with the older two & puts them to bed.

Potential in a few months for more hours/days (regular) if person is seeking them as well as casual babysitting.

Our home is in Caulfield North, our closest station is Armadale.