Sounds like they design/build/maintain stuff like factory assembly lines. They won't become an overnight millionaire doing it (like some software whiz) but they also won't go hungry when the economy is rough.

About 30% of my customers are governments. Sewage, garbage, traffic lights, recycling centers, incinerators etc. These are big contracts with complex requirements. Governments just go into debt when they have recessions. And the field as a whole moves at a glacial pace.

The other 70% is private sector. Big projects that can easily go on past the year mark just in construction alone. You can't be fickle with this stuff. Had a bad business quarter? Sorry, not my problem, here is the bill and your million dollar metal stamping process.

In the beginning of my career I was in more of a pure software setting. Constant turn over. Don't miss it at all.