Hello Student.

Talking about various carrer fields there almost all of them open for engineers because of the mindset they posses and most of them end up doing different jobs then what they are/were expected to do .You being the first kind ,kudos to you!!. But considering your masters degree you should can get ahigher package then the other, anyway there are no such professions like web development valuer but for sure you can create one . Realestate valuation and web development can be combined to develop certain website which can predict values of the real estates considering the conditions you manually apply while doing so , you can help create a value predicting app or any kind software which acurately do so.This are some examples you can think about them or develop your own sky is the limit..