Blog

The Data Science Career Path and Skills Progression (2025 Update)

The data science career path from junior to senior data scientist varies greatly in skill level, responsibilities, daily tasks, and everyone’s favorite topic– total compensation.

Hasn’t hiring always been broken?

We can drill this down all we want, but at the end of the day, I I think maybe the phrase the hiring process is broken is prevalent for a reason

23 Take-Home Data Science Challenges (with Examples + Solutions)

A curated list of 23 real-world data science take-home assignments with solution strategies to help you prepare for interviews in analytics, ML, and SQL.

PhD in Mathematics Salary (2025 Update)

Explore the latest private-sector salary trends for Mathematics PhDs in 2025—from data science and ML engineering to research scientist roles. Get detailed pay estimates and career insights.

7 Customer Analytics Case Studies (Updated for 2025)

Interviews for customer analyst roles typically include one or more customer analytics case studies.

35 Basic SQL Interview Questions for 2025

Don't know the difference between GROUP BY and WHERE? Here is Interview Query's one-all-end-all guide to Basic SQL Questions, designed to make your interview practice so much easier.

How to Present a Data Science Project (With Examples)

Learn how to present data science projects in interviews, classes or on-the-job, including tips for aligning to your audience and what information to include.

September 2023 Data Science Job Market Update

From July to August of this year, almost all data science positions saw month-over-month increases. Data scientist positions saw the highest gains, with a 25% increase in job openings.

Onboarding & Community Guidelines

Interview Query Onboarding & Community Guidelines

Introducing Performance Scores on Interview Query

Learn more about the new feature Performance Score and our data science skills test, Challenges.

Land your Data Science job with our AI, ML and NLP Expert!

Meet our AI and neuroscience expert coach with professional experience in natural language processing working previously on Alexa AI at Amazon.

Frequently Asked Questions

Here's an updated Interview Query FAQ and common issues.

1
...
1314
15
1617
...
36