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Solidity

Solidity online coding tests & interview questions

Solidity
JUNIOR
Tested skills
Duration
40 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Blockchain, Ether, Smart Contracts

Code gaps

assessing knowledge of Blockchain, Ethers

Programming task - Level: Easy

Blockchain | Simple Lottery - Implement the one time blockchain simple lottery.

Solidity
SENIOR
Tested skills
Duration
48 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Anonymity, Blockchain, Decentralization

Code gaps

assessing knowledge of Blockchain, Web3

Programming task - Level: Hard

Blockchain | Solidity | Price Calculator - Implement price calculator for incoming manufactory product data with time reset functionality.

Solidity
MIDDLE
Tested skills
Duration
102 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Accounts, Blockchain, Ethereum

Code gaps

assessing knowledge of Blockchain, Ethers

Programming task - Level: Medium

Blockchain | OpenZeppelin Contracts - FT with OpenZeppelin contracts functionalities.

Solidity
SENIOR
Tested skills
Duration
105 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Anonymity, Blockchain, Decentralization, DLT, Leger

Programming task - Level: Hard

Blockchain | Solidity | Staking - A smart contract with a staking functionality.

Solidity
MIDDLE
Tested skills
Duration
70 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Anonymity, Blockchain, Decentralization, DLT, Leger, Ether, Accounts, Ethereum

Programming task - Level: Medium

Blockchain | Solidity | Lottery - Implement the one time raffle based on blockchain technology.

JUNIOR
Tested skills
Duration
55 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Bitcoin, Blockchain, Cryptocurrency, Ethereum, Smart Contracts

Programming task - Level: Easy

Blockchain | Solidity, Ethereum, Hardhat | Car Dealership Registry - Car Dealership Repair Shop Registry which tracks work done on cars

Solidity
JUNIOR
Tested skills
Duration
39 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Blockchain, Ether, Smart Contracts, Anonymity, Decentralization, DLT, Leger, Accounts, Ethereum

Programming task - Level: Easy

Blockchain | Solidity | Auctions - Implement a basic auction using a smart contract which grants its creator the ability to initiate and manage a public auction.

Blockchain
JUNIOR
Tested skills
Duration
70 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Blockchain, Smart Contracts, Ethereum

Programming task - Level: Easy

Blockchain | Solidity, Ethereum | Auctions - Implement a basic Auction using a smart contract which grants its creator the ability to initiate and manage a public auction.

Solidity
JUNIOR
Tested skills
Duration
55 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Blockchain, Ethereum, Smart Contracts

Programming task - Level: Easy

Blockchain | Solidity, Ethereum | Car Dealership Registry - Implement a simple Car Dealership Repair Shop Registry application.