Just wanted to understand more on what you want to achieve?what are you regressing with? Give bit of a context pls.
Its ideal to have continuous variables for the logistic regression than binary variable. If you create variables like is_JobSatisfactionLevelMedium, it will be boolean in nature but still can be treated. I prefer to have the continuous variables in nature.
For the salary option, have you considered binning? You can be bit scientific on your approach and plot a histogram to see how the salary looks like in your data set and then consider binning accordingly?
I am quite new to data science and the approach what I suggested may be quite naive.