B.Sc graduates have a wide variety of options available in terms of topics, subjects, & field .
You have an option to pursue a post graduation degree in their respective field.
Students can also join non-science master degree courses such as animation, management, journalism, computer technology, etc after the completion of B.Sc degree.

After the completion of the B.Sc course, one can work in various areas which include both science & non-science fields.

In research field, in some colleges the students are recruited directly by the big organizations at a very good salary package, some professional B.Sc. courses like animation and IT open the door of animation and IT industry for the graduates, the other professional B.Sc. field also have vast career opportunities.

Some of the job profiles are:
Research Analyst
Chemist
Consultant
Lecturers
Researcher

and many more..
It depends on you and your area of interest.

Good luck.