Hey man, as long as you have concrete reasons, and the move seems to be to better things (e.g., better and more reputable company, better position, more aligned with your career goals, etc) I do not think it will be a blot in your CV. I would be careful about stating the reason of leaving as higher salary though, because if you get a counter offer, you will be trapped i.e. if you still move, then you are being dishonest. Plus, leaving for higher salary and not accompanied by any of the solid reasons above are generally viewed negatively by potential employers. THey generally want to be satisfied that the employee if forward looking, has a career plan and principles and would not be lured by a marginal increase in salary. But if your new offer is like 50 to 80% more, nothing they can say-lah :-) coz hard to imagine anyone passing on such offer. You can agree or disagree, but just putting my view and for you to be able to place yourself in the mind of the employer or HR. All the best.