What does bachelor's & master's level mean in the project description?

Aalto, and much of Europe, has a 3 year bachelor's degree and 2 year masters's degree. So if you are a 4th or 5th year student you are eligible for projects listed for master's students. It does not matter what your study programme is actually called.   

For summer 2025 there are appoximately 50 available positions for bachelor's and master's students in 7 departments.

Full list of the projects with descriptions are linked to above 

Summary of the projects