Depends on where you want to work. If you try to get into a top tier company (Microsoft, Mckinsey, Google, Goldman) they will run a full anal intrusion level background check that will reveal every job you've ever had, title, dates, etc. Plus educational credentials, criminal stuff, you name it. These checks can take weeks. I have a good friend that got a pretty senior job at MS and they found out he had bullshitted on completing an AA degree. It's pretty silly all around bc who bullshits an AA degree? And, at our age none of that make any different to our job capabilities, but he did it, they found it, and then they rescinded the offer. He had to walk back to his prior employer hat in hand. Worse happened to an MBA associate (a real dickhead, not a friend) who claimed to work AT a company when he was just a subcontractor TO a company. Goldman fired his ass 6 months after he started and was allegedly doing well. You fuck around with those guys and they will fuck you up as a matter of principle. Of course some small companies may not care and Linkedin doesn't give a shit. You can write whatever you want on a resume or linkedin.