It is interesting that you state QA has fewer expectations. This is true technologically but the expectation are high. Test an ever growing product in less time then the dev took to implement one of the features.
And from what I've seen, you want someone technically inclined. They should be familiar with the technology used, how it is setup, how to dive into debugging to get better representation steps. They should be sniffing traffic and injecting their own pathways.
But I may not have traditional views. I think of myself as a developer and I avoid the idea that test scripts provide good testing.
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