senioroperator
nounUK /ˈsiːniər ˈɒpəreɪtə/
US /ˈsiːniər ˈɑːpəreɪtər/
A senior operator is a person who has done a job for a long time and helps run machines or systems.
The senior operator showed the new worker how to start the machine safely.
OTHER MEANINGS
2. A high-ranking person who controls a system or process.
The senior operator of the power plant checked all the controls.
3. A skilled worker in charge of a team of operators.
As senior operator, she trained three new employees.
4. A person with the most experience in running equipment.
The senior operator fixed the problem before anyone else could.