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Data Science

Find out how to become a Data Scientist, get skills you need for popular Data Science jobs, & learn from the best Data Science resources.

What is Data Science?

Data science is a field that combines computer programming, statistics, and critical thinking. Data science is about making data useful by pulling insights and information from data sets.

Data science usually starts with a question, and produces answers which drive business value. Once a Data Scientist identifies the right data to look at, they have to choose analysis methods, find answers, and effectively communicate those answers to business partners and stakeholders.

The data science process:

  1. Create a hypothesis
  2. Collect and clean data
  3. Explore and analyze data
  4. Visualize and communicate answers

What can I do with Data Science?

What can't you do with data science? Data science allows us to make deep, personalized, and efficient experiences across any industry. Some examples include:

  • Energy, Utilities, and Government
  • Finance, Retail, and Insurance
  • Medicine, Health Care, and Pharmaceuticals
  • Entertainment, Transporation, and Travel
  • Social Good

What Data Science jobs are available?

Data Analyst

A Data Analyst is usually at the heart of daily business operations. They are detail oriented, technically advanced, and skilled at data visualization and communication. Data Analysts query databases for business requests, triage data issues, and keep stakeholders informed. A Data Analyst pulls, analyzes, and presents data insights, while ensuring data hygiene and quality.

Skills

Statistics, Programming, Spreadsheet Tools, Database Systems (SQL and NoSQL), Data Wrangling, Data Visualization and Communication, Stakeholder Management

Tools

R, Python, SQL, JavaScript, HTML

Data Scientist

Data Scientists are usually comfortable with analyzing large, often messy sets of data. They are responsible for undirected research, and open ended problems & questions. A Data Scientist uses data from multiple sources to uncover new business opportunities, solve business problems, and increase efficiency by finding hidden patterns in data.

Skills

Calculus and Linear Algebra, Distributed Computing, Predictive Modeling, Storytelling, Data Visualization and Communication, Machine Learning

Tools

R, SAS, Python, MATLAB, SQL, MongoDB, Hive, Pig, Spark

Data Engineer

A Data Engineer is usually a software engineer by trade. Data Engineers build data pipelines that clean, transform, and aggregate raw data into easy to query tables. Data Engineers are responsible for compiling and installing database systems, writing complex queries, scaling to multiple machines, and putting disaster recovery systems into place. A Data Engineer ensures that data flows smoothly from source to destination so that Data Scientists and Analysts can process it.

Additional Skills

Database Systems (SQL and NoSQL), Data Modeling, ETL (Extract, Transform, and Load) Pipelines, Data APIs, Data Warehousing

Tools

R, Python, SQL, JavaScript, HTML

How Do I Get Started?

Learn Data Science Skills

Take a free, online course or read an E-book.

Icon courses expanded b0e6d114b08b8890601c45ebd01aaf1d88f6192920043c616d13d4f8cb644e43 Learn R Free Course: Data Analysis with R Icon plus copy 72b0d4eef1619c1783f47b0d542cd92497a0a19ff5066562bd6467c0f50814e2 Learn Python E-book: Learn Python The Hard Way Icon plus copy 72b0d4eef1619c1783f47b0d542cd92497a0a19ff5066562bd6467c0f50814e2 Learn SQL E-book: SQL School Icon courses expanded b0e6d114b08b8890601c45ebd01aaf1d88f6192920043c616d13d4f8cb644e43 Learn MongoDB Free Course: Data Wrangling with MongoDB Icon courses expanded b0e6d114b08b8890601c45ebd01aaf1d88f6192920043c616d13d4f8cb644e43 Learn Machine Learning Free Course: Introduction to Machine Learning Icon courses expanded b0e6d114b08b8890601c45ebd01aaf1d88f6192920043c616d13d4f8cb644e43 Learn Statistics Free Course: Introduction to Statistics
Free Public Data Sets

Experts in Data Science jobs recommend working with data sets that you feel passionate about. Learn by doing!

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Learn Data Science to Land a Job

Get started with a full curriculum program to take you from beginner to data expert.

Icon plus copy 72b0d4eef1619c1783f47b0d542cd92497a0a19ff5066562bd6467c0f50814e2 UC Berkeley MIDS Program $60K Icon plus copy 72b0d4eef1619c1783f47b0d542cd92497a0a19ff5066562bd6467c0f50814e2 General Assembly Bootcamp $4K/10 weeks Icon courses expanded b0e6d114b08b8890601c45ebd01aaf1d88f6192920043c616d13d4f8cb644e43 Udacity Data Analyst Nanodegree $100/month (including 50% back on Graduation)
Additional Resources
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