I have worked for Bechtel on 2 Coal fired locations with multiple units in Arz over 20 years ago and it was a good company to work for back then.
Couldn't say about today tho.
I was union but had close friends in Eng. & Purchasing.
I know once you are in its pretty secure and with good benefits but as any work place it has its POLITICS and POLITIANS. But any thing worth having has its price or consequences now doesn't it?.