jobber vs middleman

jobber and middleman both are nouns.

Word	Noun	Adjective	Verb	Adverb
jobber	Yes	No	No	No
middleman	Yes	No	No	No

As nouns, jobber and middleman are synonyms defined as:

jobber and middleman: someone who buys large quantities of goods and resells to merchants rather than to the ultimate customers

Other synonyms of jobber include wholesaler.

jobber (noun)	middleman (noun)
someone who buys large quantities of goods and resells to merchants rather than to the ultimate customers	a person who is in a position to give you special assistance
	someone who buys large quantities of goods and resells to merchants rather than to the ultimate customers
	the performer in the middle of a minstrel line who engages the others in talk