Technically speaking, profession means the category of work you perform for pay. So, if you're working, then that becomesone of your professions, even if it's outside of your educational history, primary experience, or core competency.
Someone who works occasionally, on the side, or without a long-term contract is usually called a freelancer, consultant, or moonlighter, or hobbyist.
a slave
someone who works for a business
A businessman.
What do you mean by this. Please specify your question.
The person can be called either businessaholic or businessminded person in my opinion.
Someone do did not get a proper profession and has to clean up dog poo now? How about: Pound worker?
I call them Awesome!
A cryotherapist
Tech Person
a slave
Employee
A newbee, Trainee or an Apprentice are terms for someone new to a profession
someone who works for a business
An employee.
keelman
moofer
A mathematician