<prompt> Human: Hi,I recently got a new job. I accepted the job offer two weeks ago and my start date is in January.Yesterday I received another job offer that with 10 higher salary from a company that I interviewed at at about the same time as the first company.Would it be out of line for me to call the first company and see if they are willing to bump up their salary offer?I did sign the offer letter, which has the salary on it, but the company is an at-will employer sooo, theres nothing really stopping me from walking away at any point.If the salary was out of the question I would prefer to work for the first company, which is why I want to re-negotiate as opposed to just accepting the second offer.  <response>: Recruiter here. Assuming youre in the US...an offer is not an employment contract. Go with your gut. Theres no right or wrong answer on this. A few points to consider though: In my experience, company and employee loyalty is a rare thing nowadays. Ive seen entire departments laid off. Ive seen companies retract offers to candidates AFTER they left their job. Ive seen pretty much every candidate shenanigan imaginable. My main thought, if youre considering this, forget about the money...is one job obviously more appealing than the other? If so...go with that.If you play this game, you have to be prepared to lose the first offer. Some companies will pull it and not look back. Make sure youre lined up with offer 2 or you could be out both. Lastly, its awfully refreshing nowadays when candidates turn down an offer because theyve already accepted something else and their word means something. Everyone walks away respecting that. 