Book Image

Cracking the Data Science Interview

By : Leondra R. Gonzalez, Aaren Stubberfield
Book Image

Cracking the Data Science Interview

By: Leondra R. Gonzalez, Aaren Stubberfield

Overview of this book

The data science job market is saturated with professionals of all backgrounds, including academics, researchers, bootcampers, and Massive Open Online Course (MOOC) graduates. This poses a challenge for companies seeking the best person to fill their roles. At the heart of this selection process is the data science interview, a crucial juncture that determines the best fit for both the candidate and the company. Cracking the Data Science Interview provides expert guidance on approaching the interview process with full preparation and confidence. Starting with an introduction to the modern data science landscape, you’ll find tips on job hunting, resume writing, and creating a top-notch portfolio. You’ll then advance to topics such as Python, SQL databases, Git, and productivity with shell scripting and Bash. Building on this foundation, you'll delve into the fundamentals of statistics, laying the groundwork for pre-modeling concepts, machine learning, deep learning, and generative AI. The book concludes by offering insights into how best to prepare for the intensive data science interview. By the end of this interview guide, you’ll have gained the confidence, business acumen, and technical skills required to distinguish yourself within this competitive landscape and land your next data science job.
Table of Contents (21 chapters)
Free Chapter
1
Part 1: Breaking into the Data Science Field
4
Part 2: Manipulating and Managing Data
10
Part 3: Exploring Artificial Intelligence
16
Part 4: Getting the Job

Surveying tools of the trade

There is an array of visualization tools available that cater to a variety of needs, skill sets, and use cases. This section will discuss several popular data visualization tools, including Power BI, Tableau, R’s Shiny, and Python libraries such as Matplotlib and Seaborn, providing guidance on when to use one over another. However, the goal here is to help give you more general knowledge to prepare you for your technical interview on understanding when to choose a particular tool.

Power BI

Power BI is a business intelligence tool developed by Microsoft. It offers interactive visualizations with an interface simple enough for end users to create reports and dashboards.

When to use it: Power BI is very effective when dealing with large quantities of complex data sources, which requires considerable data wrangling or modeling. It’s an excellent choice for businesses seeking to create interactive, user-friendly dashboards or for integrating...