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Master data analysis with Python to jumpstart your career.


Discover and develop the skills that will shape the future

Whether you want to level up your skills or build a great team, CodeSignal’s skills assessments and AI-powered learning tools get you where you need to go.

Where great teams come to level up

Discover and develop the skills that will shape the future with the CodeSignal skills platform


Level up and advance your career with practice-based learning that meets you where you are and adapts to your unique skills journey.
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Ditch the resume screens and hone in on skilled candidates early with our top-of-funnel evaluations for high-volume pipelines. 
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Deliver the best candidate experience in a realistic coding environment, while accurately evaluating skill and fit.
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Improve team performance with personalized, practice-based, technical learning that delivers real, measurable results.
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Meet Cosmo: The smartest AI guide in the universe

Our built-in AI guide and tutor, Cosmo, prompts you with challenges that are built just for you and unblocks you when you get stuck.


All of your favorite tools, connected

Our ecosystem of deep integrations makes it easy to streamline your technical hiring processes.


You’re in good company

Tim Johnson

CodeSignal has been received very well by the product engineering team. We’ve tried multiple different solutions in this space, and [CodeSignal’s] interactivity, reliability, and language support has really helped us.

Tim Johnson

Engineering Manager at Greenhouse
Michael Leggett

By incorporating CodeSignal into our process and having a large number of folks opt into it, either passive candidates or applicants, we’re able to free up roughly 40 to 60 percent of our engineers’ time.

Michael Leggett

Tech Recruiter at Outreach
Nadia Abouzaid

Partnering with CodeSignal has helped us to manage a very high volume of interest from candidates in our process and quickly assess their technical acumen, without using a ton of engineering hours.

Nadia Abouzaid

Head of Diversity Talent Programs at Asana

Results our
customers have seen

Hours saved annually
Candidates evaluated