[Grammar] ‘on the newspaper’ VS ‘with the newspaper’

[northpath]

I seem I’ve found these sentences in English dictionaries:
Julia works as a reporter on the local newspaper.
Tom is a news reporter with the local newspaper.
Lena has a job with the local newspaper.
Are these prepositions Ok and interchangeable in this context?

And here's another: why when it comes to people in manual occupations, prepositions ‘at’ or ‘in’ are used. For instance:
Dave works at the automobile factory.
Tracy works in the local supermarket.
But when it comes to people of intellectual professions, preposition ‘with’ or ‘on’ are common. For instance:
Stephanie found work with an engineering firm.
Lena has a job with the local newspaper.
Can I say:
Stephanie found work at an engineering firm.
Julia works as a reporter at the local newspaper.
Tom is a news reporter in the local newspaper.
Lena has a job at the local newspaper.

 

[Skrej]

I seem I’ve found these sentences in English dictionaries:
Julia works as a reporter on the local newspaper. :cross:
Tom is a news reporter with the local newspaper.:tick:
Lena has a job with the local newspaper.:tick:
Are these prepositions Ok and interchangeable in this context? No, see above.

And here's another: why when it comes to people in manual occupations, prepositions ‘at’ or ‘in’ are used. For instance:
Dave works at the automobile factory.:tick:
Tracy works in the local supermarket.:tick:
But when it comes to people of intellectual professions, preposition ‘with’ or ‘on’ are common. For instance:
Stephanie found work with an engineering firm.:tick:
Lena has a job with the local newspaper.:tick:
Can I say:
Stephanie found work at an engineering firm.:tick:
Julia works as a reporter at the local newspaper.:tick:
Tom is a news reporter in the local newspaper.:cross:
Lena has a job at the local newspaper.:tick:

See above.

 

[northpath]

Ok, but if I say Stephanie found work with the local supermarket. or Dave has a job with the automobile factory. it would sound unnatural, right?

 

[emsr2d2]

My first choice wouldn't be "with" but it's not wrong. I would probably use "with" if it were followed by a person's name or that person's job.

He found a job with the local carpenter.
I got a job with Bill Gates.

For your examples with "the local supermarket" and "the automobile factory", I would use "at".