Which one should I choose, IISc Bangalore CSA for an MTech (TA) or Amazon SDET (with CTC around 45+ LPA)?

The choice between IISc Bangalore CSA and MTech TA or a job at Amazon depends on your preferences and future prospects. If you have a passion for software/application development, then the SDET role at Amazon will give you an edge overcome who chooses to do MTech first. If you are worried about acquiring CS knowledge, trust me MTech is not the only way. 

Nowadays big companies offer amazing courses that keep you at par with industry trends. Moreover, as an Amazon SDET, you will get the opportunity to work with some of the most talented engineers from top universities around the world which will be an enriching experience.

However, if your interest lies in core computer science, then an M.Tech at IISc Bangalore will give you a better understanding of core CS subjects.  An MTech will help you to secure jobs at FAANG, such as Amazon AWS or Google’s Core Search team. An MTech will also be beneficial if you are looking for specialized jobs like CPU Performance Architect at AMD or AI Compiler Engineer at Facebook. The major criterion for such kind of job is to have a research experience in relevant fields. An M.Tech from IISc will also open your doors to other opportunities like Applied Scientist/Machine Learning roles at FAANG. You can also get pursue Ph.D. from a top foreign university. after completing your MTech. Both options are very good and have their own sets of pros and cons.