The best way is talk to a counselor and talk about your interest. Software engineering is a specialty area from computer science (Masters). When you start at a University you start with computer science and engineering and from there pick your specialty as the following (and not limited to) are extensions from Com Sci field:
- Computer Engineering BS
- Electrical Engineering BS
- Software Engineering MS
- Radar Technology MS
- Game Development BS
- Electronic and Communication BS/MS
- IT and Networking AS/BS
- IT Manager MS/MBA
You can't be a good software engineer without mastering the "science" behind computer systems, just my 2 cents.