[Duchbag69]

work experience can be gained through quitting your current job and applying for the career that offers the highest conversion rate for work experience which is Manufacturing, the conversion rate it 2 dev per 1 career point.

then once your work exp stat is equal to the level in which you want to promote to, you go back to the original career and promote it.

work experience level needs to be as high as the career level you want.