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Latest posts

62% of managers make people decisions without reliable skills data

How to Choose the Right AI Interviewing Software for Recruiting Teams

7 Steps to Building an Engineering Competency Matrix (+ Tools)

Interview prep

Advice from CodeSignal CEO, Tigran Sloyan, on prepping for tech interviews & assessments

28 SQL interview questions and answers from beginner to senior level

22 senior software engineer interview questions (and answers)

Tech recruiting

How to Choose the Right AI Interviewing Software for Recruiting Teams

7 Steps to Building an Engineering Competency Matrix (+ Tools)

Best Skills Assessment Software 2026

Engineering

A beginner’s guide to mastering data visualization with Matplotlib

How to analyze large datasets with Python: Key principles & tips

How to learn C++: An upskilling guide for beginners

CodeSignal updates

62% of managers make people decisions without reliable skills data

What 50 million job postings tell us about the 2026 skills economy

The CodeSignal MCP: Skills Intelligence, Connected to Any AI Tool

All posts

How to avoid issues with your HTML email formatting

Exploring the CodeSignal IDE, Part 2: The terminal

3 numbers you need to know when designing a technical assessment

Everything you wanted to know about MongoDB but were too afraid to ask

Exploring the CodeSignal IDE, Part 1: User experience

Why spamming is not an effective tech recruiting strategy, and other tips for smarter sourcing

How we support mobile developer interviews in our back-end and IDE

To reduce bias in assessment, use job-relevant examples in your coding tasks

Creating SQL questions in CodeSignal

Why your hiring processes need to consider candidates’ potential and purpose

How to use source maps for essential debugging

Creating filesystem questions in CodeSignal