Skip to content Skip to footer

NEW! Turn TED talks into leadership skills with Cosmo

Get Started
Get Started
Close

Latest posts

View all posts
TED partnership blog cover
CodeSignal Updates
CodeSignal and TED partner to turn big ideas into real-world skills
Trivia question: What does TED stand for?  Answer: TED, the world-renowned conferences held across the globe, is an acronym for Technology, Entertainment, and Design. But really, TED stands for inspiration and the…
Tech skills screening blog cover
Tech Recruiting
A quick and practical guide to technical skills screening software
Blog cover for cheating detection and prevention blog
Tech Recruiting
Prevent and detect cheating in recruiting

Interview prep

View more posts
Mastering CodeSignal Assessments webinar cover
Interview Prep
Advice from CodeSignal CEO, Tigran Sloyan, on prepping for tech interviews & assessments
28 SQL interview questions and answers
Interview Prep
28 SQL interview questions and answers from beginner to senior level
Senior software engineer questions blog cover image
Interview Prep
22 senior software engineer interview questions (and answers)

Tech recruiting

View more posts
Tech skills screening blog cover
Tech Recruiting
A quick and practical guide to technical skills screening software
Blog cover for cheating detection and prevention blog
Tech Recruiting
Prevent and detect cheating in recruiting
Best coding interview tools of 2025 blog cover
Tech Recruiting
Best coding interview tools in 2025: Your ultimate guide for technical interviews

Engineering

View more posts
Matplotlib blog cover
Engineering
A beginner’s guide to mastering data visualization with Matplotlib
Engineering
How to analyze large datasets with Python: Key principles & tips
How to learn C++ guide cover image
Engineering
How to learn C++: An upskilling guide for beginners

CodeSignal updates

View more posts
TED partnership blog cover
CodeSignal Updates
CodeSignal and TED partner to turn big ideas into real-world skills
TIME top EdTech companies 2025 award blog cover
CodeSignal Updates
CodeSignal recognized as a global EdTech leader by TIME
AWS skills to jobs developer challenges blog cover
CodeSignal Updates
CodeSignal joins forces with AWS to bridge the tech skills gap

All posts

Senior software engineer questions blog cover image

22 senior software engineer interview questions (and answers)

Introducing conversation practice: AI-powered simulations to build soft skills

25 javascript interview questions cover image

25 JavaScript interview questions (and answers) from basic to senior level

AI revolution in tech webinar cover image

What business leaders need to know about AI

how to become a cloud engineer

How to become a cloud engineer: Skills & career guide

30 Data Science Interview Questions: Basic to Senior Level cover image

30 data science interview questions (and answers) from basic to senior level

How to learn JavaScript blog cover image

How to learn JavaScript: A step-by-step starter guide

How to learn data visualization blog cover image

How to learn data visualization to accelerate your career

Faith Yim learner story cover image

How a Java developer levels up her skills with CodeSignal Learn

Getting ready for a pre-hire assessment: 6 tips blog cover image

Getting ready for a pre-hire assessment: 6 tips

Cosmo AI tutor cover image for SIOP recap blog

What we learned when we gave developers access to an AI-powered tutor

How to become a prompt engineer blog cover image

How to become a prompt engineer: Skills & career path guide