Improving your career? Changing of Work when you has been working in a company for some years with certain stability is a big decision that not always is easy due the uncertainty of the new job. First of all, although of be taking the decision to improve your life and to have professional development, there is not security of this could occur because there are hundreds of factors which determine it and are not specified in the contract as are the work conditions, responsibilities, freedom to create, to give your opinion, and to work in the best possible way. Secondly, there is not security to be in the new job for a long time, in fact you are in a test period in which you have to prove your skills, and if the expectations of your company are not meeting you could be fired. On the other hand there are many advantages, as the possibility of improve significantly your work, as you are looking a work with specific characteristics better than the last one, due you have acquired experience in your previous work there is the possibility to apply for a better position, and of course you will choose the best option you could have. In conclusion although there are many uncertainty when you take the decision of change of work, there are possibilities which are attractive and has high probability of success due the fact that you are looking for the best option, if you have decided to change of work only you have to look the options, analyze in depth the decision, and do the best for yourself.