A job advertisement is created to showcase an available position at a company. It describes the role in an engaging way to explain it to the readers. A job advertisement should include the position details as well as some information about your company, the benefits of working for you, and the application process.
It is generally shorter than the job description, as it is just an overview of the role designed to get people to apply. It will often link to the job description for those who want more detailed information. A job advertisement should end with a call to action, asking candidates to apply and letting them know how to do so.