Skills

• 
  Analytical
• 
  Data Analysis
• 
  Statistical Analysis
• 
  Language R
• 
  Python
• 
  Java
• 
  C++
• 
  Hadoop
• 
  Hive
• 
  SQL

What should I know?

• In-depth knowledge of SAS and/or R. For Data Science, R is generally preferred.
• Python coding: Python is the most common coding language that is used in data science along with Java, Perl, C/C++.
• Hadoop platform: Although not always a requirement, knowing the Hadoop platform is still preferred for the field. Experience in Hive or Pig is a huge plus.
• SQL database/coding: Though NoSQL and Hadoop are the major focus for data scientists, preferred candidates can write and execute complex queries in SQL.
• Working with unstructured data: It is extremely  important that a Data Scientist is able to work with unstructured data—whether from social media, video feeds, audio, or other sources.

Source : Simplilearn

Additional Notes

Downloads

• Ultimate Skills Checklist for Your First Data Analyst Job

Blog

• 8 Skills You Need to Be a Data Scientist
• If you want to learn Data Science, take a few of these statistics classes