CodePair v2 is here - Live coding built for the AI ageLearn more

CodeSubmit Library

GraphQL API Assessment

Evaluate GraphQL developers with API assessments covering schema design, query optimization, and resolver implementation. Our GraphQL tests focus on type systems, subscription handling, and performance considerations.


Perfect for API development roles requiring flexible, efficient data fetching solutions.

Start Free TrialView Pricing
Trusted by leading organizations worldwide.
Logo Air Force on CodeSubmit
Logo Netflix on CodeSubmit
Logo Apple on CodeSubmit
Logo Audi on CodeSubmit
Logo 3M on CodeSubmit

Modern API Development

GraphQL revolutionizes API development with its flexible query language and strong type system. Our assessments evaluate candidates' ability to design efficient, scalable GraphQL APIs.


Test knowledge of schema design, resolvers, subscriptions, and GraphQL best practices.

The communication between hiring managers, recruiters and candidates has been incredibly improved since we started using CodeSubmit. There is no 'back and forth' anymore and the technical assessment is running smoothly!

Virginie Raucoules
Virginie Raucoules
P&C Manager @ KONUX
Virginie Raucoules

Authentic tasks, not algorithm puzzles.

Take-Home Coding Challenges

Our extensive library of practical coding challenges provides an accurate assessment of candidate programming abilities while delivering a respectful and engaging interview experience.

Try demo challengeLearn more
Authentic engineering challenges:
Coding assessments that mirror real development work, helping top engineering teams recruit more effectively, intelligently, and fairly.
Comprehensive challenge library:
Select from hundreds of programming challenges spanning junior to senior architect levels, supporting all major languages and frameworks -- or create your own custom challenges.
JavaScriptReactVueAngularTypeScriptDartFlutterAngularPythonDjangoFlaskPyramid
Developer-friendly workflow:
Our innovative Git-based approach enables candidates to code on their preferred machines, using familiar tools, and working at their own pace.
Seamless interview integration:
Transition directly from completed challenges to CodePair live coding sessions for deeper technical conversations and code reviews.
Discover CodePair →
Frontend Engineer
Tip Calculator
Example of a take-home coding challenge on CodeSubmit