I am just adding to the existing crescendo but here is my take: * If it is not written down, it is meaningless. Never believe anyone's verbal assurance, especi

I am just adding to the existing crescendo but here is my take: * If it is not written down, it is meaningless. Never believe anyone's verbal assurance, especially if it is someone whose compensation is tied to your assent (such as the interviewer, it seems.) This is true generally for many areas of life but is particularly true of transactional interactions such as buying a car, signing up for a job, buying a house, etc. Pretty much if the person dealing with you will suffer no consequences of lying to you once you have agreed, you should insist on seeing the concern addressed in writing. * Better late than never re. departure. If your next potential employer quizzes you about the short duration, present the departure in positive terms ('misunderstanding in the details of the role', etc.) I will also roll out a platitude by saying that you get one shot at life and it is not worth it to be miserable. You have the fortune (depending on your country of residence, true for the US and Canada certainly) of being in a good job market so anyone with half a sense will snap you up pronto. * The longer you stay in this job doing phone support and looking at code, the more time you will lose building up your future skills. Effectively, the longer you stay, the more you are dulling your ability to move to a non-technical-support job in the future. * Stackexchange has a job-advice board and you should consider posting there to get additional opinions if you are still concerned. EDIT: Added one more point re. career.