<prompt> Human: I just got an offer for a pretty cool job, basically exactly what I want to do for now. However, I think I sold myself too cheaply. I found out latter, when I applied for other jobs, that more is possible. Any way I can change something about it? They basically offered me exactly what I asked for..  <response>: What you should do might depend on where you are in your career. If you are relatively early career, the job is really what you want to do, and something that would move you forward, and the sort of opportunity that probably isnt thick on the ground for you right now, take what youve negotiated, with the plan of working hard for a year or two, making it a win, and hitting the job market again well qualified to take the next step. And negotiate better next time. Agreeing to a salary and then coming back to ask for more makes you look inconstant and flaky and starts you out on the wrong foot. The opposite, frankly, of driving a hard bargain in the first place. I personally think most of the advice you are getting here is wrong. I think the productive choices are:- Accept that you didnt negotiate quite the way you wish you had, chalk it up to experience, reject the offer, and keep looking. Id only do this if I was pretty sure you can replicate the opportunity and if your personal circumstances make you risk-tolerant. Be graceful but non-specific when you decline, implying that you found a better opportunity but dont be outright dishonest about it. If you ever cycle back around to that employer in the future, youll get more respect. Then scramble like crazy to actually get that better offer. - Accept that you didnt negotiate quite the way you wish you had, chalk it up to experience, and accept the offer. If it looks pretty clear that this is going to trap you at a lower pay level that you wont be able to escape through raises, dont plan to stay long. Get the experience and go get a better job for which you will by then be well qualified. I dont know anything about what your field is, where you are in your career, what your personal circumstances are or what your risk tolerance is at this point, what the job market liquidity for your field is where you are, etc. Which of these you do depends on all of those things.I personally think what you dont do is indicate that a certain level of compensation would be acceptable, and then try to bid them up once they make the offer. Even if they feel stuck hiring you at that point, it will cause resentment, and you will look clumsy, inconsistent, out of touch, and perhaps even a bit scammy. Personally, with people who have done this with me, unless they actually have a competing offer that is higher at the time and its really better not to lie about something quite that specific, I think pretty hard about re-evaluating the offer and moving on to the next candidate. I just dont like the taste it leaves in my mouth. Its kind of a trust issue for me. I dont like working with the kind of people who cant be held to their word. You can negotiate further about stuff like benefits and perqs that you havent already discussed, if there is flexibility although at a large organization, your manager is probably bound by policy unless you are applying for a senior exec position, just be reasonable. And you have to have good sense about what the range of reasonable asks is, or you look like a prima donna, And nobody wants to work with a prima donna. 