Greetings!

B.Sc in any subject and B.Tech in any subject have a major difference that is B.sc is a educational course and B.Tech is technical course. Now coming to your question B.Sc computer science is a 3 year graduation program while B.Tech computer science is a 4 year graduation program. In B.Sc computer science you will majorly learn about computer applications but in B.Tech you focus more on coding and algorithms. For job, it depends on person to person but B.Sc in computer science will mostly offer you job into educational field such as teachers and professors but B.Tech in computer science will get you into technical field such as IT firms. Now, keeping all of this in mind you decide what's best for you

I hope this was helpful. Thank you!