Guess My Occupation

Clue No. 1: Some say I have a Dream job but in reality it takes a great deal of concentration and skill to perform, as I am responsible for the safety of 100's of peoples lives on a daily basis.

Clue No. 2: I work always seated in a very confined space.

Clue No. 3: I wear a uniform that comes with a cap and has lapels on each of my shoulders.

Clue No. 4: In order to perform my job I have to work closely with 2 other persons.

{ ANSWER ON MONDAY IF NOBODY CAN GUESS WHAT MY OCCUPATION IS }