What if you don't like the work
Understand yourself. It is important for you to understand whether you can state your dissatisfaction with the work of a permanent or a temporary phenomenon, which is a consequence of fatigue, health problems, troubles in personal life, deterioration of working conditions or increased workload associated with a specific period. If it is not in the work itself, changing it, you will not bring improvements in their lives, but only complicate it. Because the existing problems will be added the necessity of finding suitable jobs and the feeling of regret for wrongly committed step.
Think about what you are not satisfied. Be prepared for the fact that the first answer will not be correct. For example, you think that you are underpaid. But at the same time your salary seems to be adequate to the amount of work that you perform. You are browsing jobs and I see approximately the same picture in terms of material incentives. It turns out that it is not in salary and not bonuses, and that you don't grow in a professional sense. You need to understand yourself if you do not show initiative, head of hard not to notice your accomplishments, or your company has no growth prospects. This will be the answer to the question, what is your concern.
Will solve the problem. If the case is in the post, think about how you can take another. Think wider. The other post does not necessarily imply a promotion. Sometimes a lateral move of an employee within one company also brings satisfaction and joy. Think about whether you are attracted by some of the adjacent area, and are you ready to retrain. If it is really salary or the rejection of corporate culture, you may want to look for another job.
Talk to the chief. If the problem can be solved with it, try to do it. Choose a good time for negotiations, show your value to the company, explain your requirements and extend the offer. Don't blackmail the employer with dismissal and refer to the fact that you have been invited to a couple of better firms for interviews. May you have an offer from another company in reserve, but talking about it is not necessary. Just tell what you want to improve conditions and tell us why you deserve them.