Need occasional babysitting for two children after school

Hello, I’m looking for a reliable babysitter to cover occasional after-school care for my two kids aged 6 and 9. The job would involve collecting them from school, helping with a light snack, supervise homework for about an hour, and ensure they're safe until I get home. Ideally, the sitter has recent childcare experience, basic first aid knowledge, and a friendly, calm approach. Flexible start times are appreciated, but mornings are not needed. A brief evening or weekend drop-in could be useful occasionally. Comfortable with pets and a smoker-free home. Please share references and any relevant certifications when you apply.