Lina looking for a babysitter or nanny in Waterloo

We are a family of five, 2 girls (9 years and 6 months old) and one boy ( 5 years old). My husband works in the tech industry and I am a PhD candidate at the University of Waterloo. I am currently on Maternity leave, but I still do some research work occasionally. I need a sitter for my 6 months old during the day on weekdays.