I am trying to become one as well. From what i have seen its around 50k i would do it just for food and shelter i just got to get some luck and network more.
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I'm sure it's based more on the job itself as well as duration and such, but any information would be helpful. I might be studying the subject for a Bachelors Degree but I need an idea of what to expect financially once I start working. Thanks for your help.