๐ Cryptocurrency & DeFi Hands-On Course
Blockchain and Decentralized Finance (DeFi) are reshaping the future of the internet. From the 2020 DeFi Summer to the 2024 Bitcoin ETF approvals, blockchain has evolved from a niche hobbyist technology into a strategic priority for Wall Street and mainstream financial institutions.
Why Learn This?
1. High-paying Web3 career Solidity smart contract developers are among the highest-paid programmers in the market. In the US, average salaries range from $120,000 to $400,000 annually. Remote Web3 positions pay global rates regardless of your location.
2. Launch your own token or NFT project Once you master smart contract development, you can create your own cryptocurrency or NFT collection. Every mint event generates revenue through minting fees and ongoing royalties from secondary sales.
3. DeFi protocol development and auditing Smart contract auditing is a high-margin niche market. Audits typically cost between $5,000 and $50,000 per engagement. The demand far exceeds the supply of qualified auditors.
๐ ๏ธ Technologies We Will Use
| Technology | Purpose | |:-----------|:--------| | ๐ Solidity | Ethereum smart contract language | | ๐ ๏ธ Hardhat | Smart contract development framework | | ๐ Ethers.js | Blockchain interaction JavaScript library | | ๐งช OpenZeppelin | Audited standard contract library | | ๐ฐ MetaMask | Cryptocurrency wallet | | โ๏ธ Sepolia | Test network (free ETH from faucets) | | ๐ฆ IPFS | Decentralized storage for NFT metadata |
๐ฅ Vibe Coding Prompt Preview
๐ฅ Prompt: ERC-20 Token Contract "Write an ERC-20 token smart contract using OpenZeppelin with these features:
- Token name: VibeToken, symbol: VIBE
- Total supply: 1,000,000 tokens
- Mint all tokens to the deployer (msg.sender) on construction
- Add burn functionality
- Add 3% transaction tax that goes to a treasury address
- Owner can pause all transfers (emergency stop)
- Use Solidity ^0.8.20"
Ready to enter the Web3 world? Let us begin!
Course Structure
| Chapter | Topic | What You Will Build | |:--------|:------|:--------------------| | 1 | Blockchain Basics & Setup | Install Hardhat, create your first project, understand wallets and gas | | 2 | Solidity Language | Variables, functions, modifiers, inheritance, events, error handling | | 3 | ERC-20 Token | Launch your own cryptocurrency with mint, burn, tax, and pause | | 4 | ERC-721 NFT | Create an NFT collection with reveals, royalties, and IPFS metadata | | 5 | DEX & AMM | Build a decentralized exchange using the x * y = k formula | | 6 | Lending Protocol | Implement collateralized lending with liquidation and dynamic interest | | 7 | DApp Frontend | Build a React dashboard with MetaMask, token transfer, and network switching |
Prerequisites
- Basic JavaScript knowledge (variables, functions, async/await)
- Node.js installed on your machine
- MetaMask browser extension
- No prior blockchain experience required โ we start from zero