They are pretty the same, the difference is that computer science is more about dealing with algorithms like creating them and a lot of math you have to code a lot here. But as a software engineer you be dealing with designing the software architecture, gathering requirements, choosing the best methodology, tools and even peoples to build particular software and ... , you may also need programming skills to pick. The right tools to build the software, then leave it to the computer scientists or in Ethiopia case do it by ur self. In Ethiopia we use them as interchangeable field. So computer science is about programming and soft eng is about designing. Sallary is the pretty same at junior level but soft eng can go as far as $600k per year in USA🇺🇸. 💻Programming languages I recommended is javascript(search about MERN stack), python, java / and databases like postgresql, mysql, and Mongodb(becoming popular this days).