Part Time Nanny experienced with babies

We are looking for someone to look after our 5month old two mornings a week, for 4 hrs, ideally 10:30am till 2:30pm but can be flexible for the right person. We run our own business so will be around but likely in the office out the back. Need someone experienced and confident with young babies who are confident with putting down for naps and starting solids in a few months. Would be great if some light housework could be done while baby naps.