From my experience - a very clear no. When I was working at an equity derivatives trading desk, I heard from many people in operations that they eventually would like to transfer to trading / sales but I rarely saw that somebody succeeded in it. In general the competition about entry level positions in investment banking is the highest amongst all departments. So a graduate that joins operations although he actually wants to get into investment banking has a rather low chance to succeed in the future. The main reason is, that there is little overlap between the hard skills that you require - i.e. you in general not acquire knowledge relevant to the job in investment banking that you'd like to get. Plus, there will always be new competition from recent university graduates for IB positions in the future. So if you like operations, then go for it but do not do it just because you think it makes it easier to move on to an IB job after some time. I think even within the company, you will find little support for a move. No matter where you start, you will be a trainee for the first year or so. I.e. the bank will have to train you for the particular job they hired you for. Thus, they have little incentive to let you go just after one or two years.

LocalVolatility is right, there are many stories out there of people joining the back-office of IB's to try a get a position within another division but not making it.