The job description of a lead varies depending on the industry and the organization, but generally includes the following:

1. Supervision: A lead is responsible for supervising a team of employees or workers, ensuring that they are performing their duties effectively and efficiently, and providing guidance and support when needed.

2. Training: A lead is responsible for training new employees or workers and providing ongoing training to existing staff to ensure that they have the skills and knowledge necessary to perform their duties.

3. Communication: A lead is responsible for communicating with team members, management, and other departments to ensure that everyone is informed of changes, updates, and any issues that arise.

4. Planning: A lead is responsible for planning and scheduling work assignments, setting goals, and establishing priorities to ensure that projects are completed on time and within budget.

5. Quality Control: A lead is responsible for ensuring that work is of high quality, meets standards, and is consistent with company policies and procedures.

6. Problem-solving: A lead is responsible for identifying problems and finding solutions, and for addressing any issues that may arise during the course of a project.

7. Leadership: A lead is responsible for setting a positive example for team members, fostering a positive work environment, and promoting teamwork and collaboration.

Overall, the role of a lead is to ensure that the team is working together effectively and efficiently, meeting project goals and deadlines, and producing high-quality work. They are responsible for providing guidance, support, and training to team members, communicating effectively with others, and taking a leadership role in the organization.