A job is a way of running a notebook either immediately or on a scheduled basis. Here's a quick video (4:04) on how to schedule a job and automate a workflow for Databricks on AWS.
To follow along with the video, import this notebook into your workspace.
https://files.training.databricks.com/lms/aws-onboarding-incremental-etl/incremental-etl.dbc
For more on Jobs, visit the docs. Question and ideas? Leave a comment below!