Babysitter Needed - Full-time / Part-time

We're hoping to have a nanny join the family for 2 years when our son will start preschool at 3yrs old. He's currently 1 and his sister is 3yrs old. She will be in preschool starting in September, but we may want occasional care for her as well. We live in south Kirkland. The kids love going on walks in nature around our neighborhood. He's a good eater and sleeper, no health issues, no learning issues. I usually prepare his foods the day before. We're looking for someone with a lot of energy who truly loves working with kids.