Hey

Programming is similar to Mathematics, no one can master it fully but yes you can do Software Engineering and Full Stack developing simultaneously. In fact both are very similar domains. For that you need to master some necessary skill in each domain.

For Front end:

• Javascript
• CSS/HTML
• JQuery
• Python with Django or Flask
• Github and Git
• Cloud services and Storage domain

For Software Engineering:

• Data Structures and Algorithms
• Office suites
• Operating System framework
• Databases (MongoDB/Redis)
• Networking (HTTP)
• Git and Github

And to increase your efficiency, both the professionals need to have a good communication skills and moral ethics. Good technical learning aspects as well.