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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

Candidate Experience and Skills Validation: The Advantages of Focusing on Both

The 4 benefits of skills validation: ROI, better retention and more

Pre-hiring skills validation: Methods that top HR leaders trust

Hire smarter: 5 tips for using skills validation training in your hiring process

The use of skills validation in HR: 5 frequently asked questions to get started

What hiring really looks like with AI: Key takeaways from RecOps Con 2025

Enterprise product manager assessment platform: Hiring the best PMs at scale

Good resumes versus great candidates: How using skills validation can determine the difference

Redefining hiring for finance and business roles with CodeSignal

SQL assessment tools for developers: Build stronger teams with confidence

Finding an engineering candidate screening platform for smarter tech hiring

Technical project manager skills tests cover image

Technical project manager skills tests: How to identify and hire the right candidates