Housekeepers roles and responsibilities will vary considerably depending on the requirements of employers. Some households may employ several housekeeping staff to share duties, whilst others may have one housekeeper to carry out all daily tasks. This will inevitably depend on size of the property and workload.
Overall the housekeeper will be responsible for the domestic services of the property. This includes cleaning and maintaining standards in an organized and routine fashion, including laundry, dry cleaning.
Errands for the family, a driving licence may be useful in certain locations.
Maybe some involvement in table service, preparation of light meals usually for children but maybe principles too. Personal shopping, maintaining stock levels, & ordering household supplies.
Opening and closing the house, dealing with security companies & primary key holding or first point of contact in an emergency or alarm activation.