The computer science engineering course modules and specializations are generally fixed in the universities. What you should do in addition is to learn languages and courses that are in demand and hone yourself with additional skill sets. This is only possible once you start studying computer science engineering. Most of the software companies do train their employees in the initial orientation programmes. To know what kind of skill sets are preferred, check the career sections of most software companies, connect on social media like linkedin and figure it out. The field is one where constant updation is required to keep abreast of new technologies and software.All the best!