The President's job is to execute the laws passed by Congress, represent the country in foreign affairs, commander in chief of the military, and appoint executive officers and members of the judiciary. For more on the president's power see the link below discussing Article II of the Constitution.
The job duties of the vice president are largely left up to the president. The vice-president actually has one official duty and that is president of the Senate.
The Vice President really doesn't have much of a job, but to be there if needed when/if the president dies.
Because - ultimately, the President is responsible for the actions of all government employees.
The president is the chief executive of the nation. His job is to carry out the laws passed by Congress. To do so, he is at the top of a huge bureaucracy of government workers.
The vice president's special duty is to be president of the Senate.
Job duty is defined as a task that an individual is responsible for carrying out within their job position. Examples of a job duty is cashiers that must suggestively sell to customers they serve.
One duty of the President is to sign a bill into a law. Another duty is to be Commander in Chief of the US military.
It is also the duty of the vice president to preside over the Senate.
job
It is the House of Representative's duty to charge the president with impeachment. It is also the Senate duty too, but mostly the House of Representative's duty ;)
To do the job of a president
If your primary employer does not have work for you and told you to stay out on workers comp until you can work full duty then you need to not work at another job while you are on workers comp.