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CodeSignal Updates
A Conversation with Dr. Mary Papazian on the Future of Education
Dr. Mary Papazian has spent more than 35 years in higher education, serving as a professor, university president, and national leader in advancing student success and innovation. Now, as CodeSignal’s Senior Advisor…
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Skill Validation
AI skills verification tools: 5 questions to ask before you choose yours
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Skill Validation
AI skills verification software: The innovative newcomer to your hiring needs

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
Get better hiring results with a full stack engineer testing platform
Tech Recruiting
What is a coding assessment platform? A practical guide for hiring teams
Tech Recruiting
Enterprise product manager assessment platform: Hiring the best PMs at scale

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
A Conversation with Dr. Mary Papazian on the Future of Education
CodeSignal Updates
CodeSignal & RippleMatch: Expanding Access Through Verified Skills
CodeSignal Updates
What hiring really looks like with AI: Key takeaways from RecOps Con 2025

All posts

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The ultimate guide to hiring 10X engineers

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What we learned at SIOP ’23 about the future of tech hiring

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Top-paying tech roles in 2023—and other key findings from our State of Engineer Hiring Survey

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4 red flags to watch out for when choosing a tech hiring platform

Assessment validation—and why it’s a game changer for your tech hiring

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Can ChatGPT pass a CodeSignal assessment?

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Tackling the top 4 challenges of creating coding questions for engineer hiring

4 ways your tech hiring process works against you

Experts agree: Demand for software engineers remains high in 2023

Stop losing top candidates: How to improve candidate experience in software engineer hiring

An IO psychologist’s guide to maintaining an effective technical assessment

Answers to your questions about NYC’s new law on automated employment decision tools