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

Summary

In this chapter, we covered a broad range of topics related to basic shell and Bash scripting and command-Line operations for data scientists.

We began with an overview of navigating within the file structure and directory on a local computer or a virtual machine from the command line, explaining the use of basic commands for directory navigation. Then, we moved on to file and directory manipulation. In the subsequent sections, we delved into Bash scripting topics, discussing control statements and the use of Bash functions to create reusable pieces of code. We highlighted data processing and pipelines, demonstrating how to chain commands together to process text data. We also covered cron jobs for scheduling tasks and provided an overview of its syntax.

Gaining fluency in Bash scripts and basic shell commands will prepare you to engage with a variety of other CLI technologies commonly used in data science such as interfacing with the cloud providers (i.e.: AWS, Azure...