ALL through Python3:

1. You shall be required to fetch data from data sources (databases, APIs, flat files, filesystems etc)
2. You shall be required to create Pandas dataframes and/or Numpy arrays
3. You shall be required to code complex data analysis and data manipulation logic
4. You shall be required to work deep on SQL, slice & dice and data transformations on dataframes and/or arrays
5. You shall be required to upsert data to data sources (databases, APIs, flat files, filesystems etc)
6. You shall be required to build data pipelines
 

MUST HAVE
Python 3 DataFrame
Python 3 Numpy
Connectivity with varied data sources
Functions for advanced SQL, data manipulation and complex transformations

GOOD TO HAVE
Functional Programming [map-reduce lamda]
Python 3 Scikit Learn
Distributed computing
Django Web Framework