We are on shifts so my schedule changes every week.
Lots of effort is required. I'm skilled enough to train other people to operate a test cell. I trained my team leader. I still enjoy being a test cell operator weather working on my own or with someone else, and I enjoy working in a team. However the me and the people I trained will be on the same salary and I am the highest skilled employee in my department, and I've been loyal, (working for 5 years) and I'm not rewarded. A newly employed individual would be on the same salary as me.
Minimum reward for effort and loyalty.