Job Description. Extended Day Aide – Elementary (Part Time). St. Johns County School District. St Johns County, FL. $15.00 - $16.28 per hour. Hiring for the 2023 – 2024 school year. Extended Day Aide – Elementary (Part Time). St. Johns County School District is looking for compassionate and dedicated Extended Day Aides to work with elementary students in our Extended Day Programs. Candidates will serve as a group leader to provide a safe, positiv...