My experience, real work is what a junior dev does, without an exception. Senior developer creates over-engineered version of what junior dev made.
Senior devs gibber about database systems, sql, nosql, clustering, etc. The real work storing the input in text file, querying with a simple loop.
Plus there is an additional huge misconception in industry, if something is realtime, it is a senior dev thing. It is something like a plague.
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