I was contacted by a recruiter for the first round, the tech stack of the position was Java, Python, and React/Node.js. The first round was with the project director. I was told that the interview was going to be a system design and algorithm question and no specific langauge. I was asked to "build out a REST client in Java in Notepad", which I have never done before in Java. I asked to use Node.js/Javascript as I am more familiar with the protocols of the language, he asked if I knew Python's protocol, but I said no. He then concluded the interview within the first 10 minutes asking if I had any questions for him. I asked him if there was going to be a system design or algorithms type of question, and he said that was supposed to come after I've built the REST client (which I have no clue how that was supposed to be a follow-up). I offered to complete those questions in Java or Python and pretended I had mock data or user input, but he said that any engineer can do algorithms and data structure. It honestly didn't seem like a technical interview, but a memorization interview instead as he expected you to remember all the libraries and their function calls.

During Interview process if you are making a switch rather campus placement it would be not much difficult and easy leetcode questions, Basic and foundations of OOPS, system design will suffice.