I might have recommended you to switch if you were in 2nd year or before. Since you have already completed 3 years, I would recommend you to just wait for one more year and complete your Masters Program. Just before the employee conversion next year(December), start looking for jobs and resign with a one month notice period.
Meanwhile, work on improving your skills and get the confidence to switch companies. In this one year, apply for jobs and observe what companies are looking for exactly and try learning those technologies in your desired area.