Jobs are usually advertised for one or two weeks. Check each announcement for the closing date.The following non-merit social services job opportunities are now available. Please note that these positions generally do not have fringe benefits. In my calendar application I want to send notifications X minutes before events. I used the notification API with service worker as follow. Click on the job title that you are interested in, review the job description, employment standards and supplemental questions (located on the tab). All of this can be done in a single alerting form. New applicants can apply online to be a substitute teacher or substitute instructional assistant through the FCPS Instructional Talent Gateway. I am trying to use service worker with Firebase to implement push notifications on chrome.