Solidity
If you like applying Solidity, every challenge here gives you a chance to practice it on a real industry brief.
- DesignSeniorNew
Design a Cross-Chain Bridge Protocol with Honest Threat Model
Read the Vitalik 'cross-chain interoperability' essay and survey 3 existing bridge designs (lock-and-mint, atomic-swap, optimistic-rollup-native). Design your protocol around a …
- Blockchain Protocols
- Smart Contracts
- Solidity
Open coursework - AnalysisSeniorNew
Audit a Decentralized Lending Protocol for Smart Contract Vulnerabilities
Working only from the provided lending protocol contract module — which contains LendFlow's core deposit-and-borrow pool together with a simplified price oracle it depends on — …
- Solidity
- Smart Contract Auditing
- Decentralized Finance
Open coursework
How it works
From brief to credential, in six steps.
Step 01
Browse challenges aligned to your studies.
Step 02
Accept the one that fits your goals.
Step 03
Work through it with AI Copilot guidance.
Step 04
Submit for structured evaluation.
Step 05
Earn a verified credential.
Step 06
Add it to LinkedIn with one click.
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