That is debatable and depends largely on a definition. My viewpoint is that a large portion of the companies in the current VC-inspired "tech" world are merely applying tech and not really developing it. For every company like Datastax there's a dozen of companies which are just applying tech solutions (packaged and sold by other companies) to a specific business/consumer problem.

Or, to put it in other terms, if the job offer does not say "Msc/PhD in X preferred" (where X is the job, like distributed systems, deep learning etc.), then it's likely not quite a "real tech" job.