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Skill Validation
Looking to invest in AI skills validation? Mistakes to avoid (that hinder your success)
As AI adoption accelerates across industries, many organizations are turning to AI tools to streamline hiring, training, and workforce development. One of the most promising applications is AI skills validation: using advanced…
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Skill Validation
AI skills validation compliance: 5 ways to protect integrity in the age of automation
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Skill Validation
AI skills validation: Help where your hiring process needs it most

Interview prep

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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
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Interview Prep
22 senior software engineer interview questions (and answers)

Tech recruiting

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Tech Recruiting
Enterprise product manager assessment platform: Hiring the best PMs at scale
Tech Recruiting
SQL assessment tools for developers: Build stronger teams with confidence
Tech Recruiting
Finding an engineering candidate screening platform for smarter tech hiring

Engineering

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

CodeSignal updates

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CodeSignal Updates
What hiring really looks like with AI: Key takeaways from RecOps Con 2025
CodeSignal Updates
Redefining hiring for finance and business roles with CodeSignal
CodeSignal Updates
Making learning addictive is only half the job

All posts

Prompt like a pro: Prompt engineering portfolio ideas that show off your skills and lead to success

Prompt engineering vs coding: How effective prompt writing is reshaping the AI revolution

Novice newbies: How to become a prompt engineer in 6 easy and effective steps

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Go-to guide: Top Qualified.io alternatives for technical assessments

Prompt engineering for ChatGPT: From curiosity to mastery in 5 easy steps

What is prompt engineering? (And 5 questions you should be asking now)

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Best HackerEarth alternatives for tech hiring this year

Prompt engineering courses: Questions to ask before you begin

LLM prompt engineering: What it is and how it can help with your AI success

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Unlock your potential with our latest additions to the Experts Series

Show don’t tell: 4 prompt engineering examples that will make you a writing maven

From input to impact: The top real-world strategies used in prompt engineering today