What is the main purpose of a job description?

The main purpose of a job description is to clearly outline the responsibilities and qualifications required for a specific position. It serves as a foundational document that informs potential candidates about what is expected in the role, including the tasks they would be responsible for, the skills and experience necessary to perform those tasks, and any educational or certification requirements relevant to the job. This clarity helps both the employer and job seekers—employers can ensure they attract candidates who are suitable for the position, while applicants can assess whether they meet the qualifications and are interested in the role.

While aspects like promoting company culture, providing salary information, or describing the work environment can be important when communicating about a job, they are not the primary function of a job description. These other elements may supplement the job description but do not define its main purpose.