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Solidity Smart Contract Assessment

Test Solidity developers with blockchain-focused assessments covering smart contract development, security best practices, and DeFi protocols. Our Solidity evaluations test understanding of Ethereum development and Web3 technologies.


Perfect for blockchain development roles requiring smart contract expertise and security awareness.

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Blockchain Development

Solidity is the primary language for Ethereum smart contract development. Our assessments evaluate candidates' understanding of blockchain concepts, smart contract security, and decentralized application development.


Test expertise in contract architecture, gas optimization, security patterns, and Web3 integration.

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.

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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.
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Example of a take-home coding challenge on CodeSubmit