Reliable And Dependable Sitter Needed For Occasional Evening And Weekends

I'm looking for a dependable for my 18-month-old son. My husband and I have very demanding schedules, which require us to work in the city or travel a few times a week. I am looking for someone to assist with daycare pick-ups. This would require picking him up from daycare, which is about 5 minutes from our home, getting him dinner and to bed, or hanging out with him until we come home. This will typically be about 3-4 hours at a time. Additionally, I want this person to be someone we can hire to occasionally watch J. on weekend nights when we have plans.