hey,

yes, you are eligible to pursue MSC in computer science after your BCA and yes it is a good choice if you want to  pursue your further studies in the field of computer science or information technology.

there are many job profile you may after your MSC in computer science

1. software engineer

2. human- machine interaction specialist

3. information system consultant

4. embedded system engineer

5. R&D engineer in computer science

all the best!