What a Blockchain & Smart Contracts intern does

The Blockchain & Smart Contracts role, what you build at each level and what you need before you start.

Build blockchain apps on test networks: Solidity contracts in Remix, Hardhat or Foundry, testing, ERC-20 and ERC-721 tokens, wallet-connected frontends with ethers.js, safety patterns, static analysis and permissioned chains.

What you build, level by level

Level 1: Foundations: Blockchain basics, Hashing in code, Wallet on a test network and more.
Level 2: Building real features: Hardhat or Foundry project, Unit tests, ERC-20 token and more.
Level 3: Professional work and capstone: Static analysis, Gas optimisation, Certificate verification system and more.

Where this work is used

Training Trains, W3AppDevelopers and DomainHostly use these skills in real projects: Full Stack Web Application Development. Interns who pass the readiness check can take paid-company work from the Company Work board in the portal.

Before you start

Basic JavaScript helps. Everything uses free test networks and test coins; no real money is ever used.

Tools and first-week setup →