What exactly does a Data Scientist do as a job?

Got an interesting query on LinkedIn

What exactly does a Data Scientist do as a job
what are roles of a data scientist

Now since I have been for almost 14 years doing something related to data science even before data science became a term on Wikipedia https://en.wikipedia.org/wiki/Data_science – here are my views

a data scientist is simply a person who can

  write code = in R,Python,Java, SQL, Hadoop (Pig,HQL,MR)   etc

                     = for data storage, querying, summarization, visualization

                     = how efficiently, and in time (fast results?)

                                                 = where on databases, on cloud, servers

   and understand enough statistics

         to                              derive insights from data

    so            business can make decisions

It involves coding, it involves presenting insights, it involves gathering requirements like a consultant. So you need the following

ability to write complex SQL queries

ability to move ,create,delete files on command prompt in Linux

code in Python and in R and in SAS

do machine learning (in R caret/party/e1071 packages and in Python scikit learn and in Spark MLLIB) and SAS Enterprise Miner

ability to learn new languages quickly (Hadoop, Hive , Pyspark)

do analysis on small data using statistics (R/Python/SAS) and on big data

make presentations on insights to senior management

> Lots of roles for a single term -data scientist