It is depends ob your ability to pursue either of paths later in life. If you choose Amazon you would be earning money while at Cambridge you would be spending money. BUT on the long term after Cambridge you would earn more money.

So, if you see yourself starting at amazon, working a couple years, going to Cambridge later - you will join it with a much better background and experience, you will get more from the education. If you cant do that, go for Cambridge. Amazon wont get you enough experience to sustain on a long term