Babysitter Needed for my Children

Looking for a warm, playful English-speaking babysitter/nanny for our 5-year-old son in San Mateo. We are looking for someone who genuinely enjoys playing with children pretend play, LEGO, crafts, books, playground time, etc. The main goal is for him to have fun and naturally communicate in English, not formal tutoring. Experience with children around age 5, references, and a background check are important. Native English speaker or fully fluent English preferred. The schedule is flexible. We are looking for occasional/regular service for about 6-8 hours per week: 1-2 days on weekends, with occasional weekend hours as needed