Masterclass: Blockchain Architecture, Solidity & Web3 Engineering

Architect decentralized protocols, write gas-optimized Solidity 0.8.x smart contracts, and build Web3 DApps.

16 Weeks

Classroom Lab & Hybrid

English & Tamil

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Course Overview

Blockchain Architecture, Solidity and Web3 Engineering is the frontier of decentralized software development. This masterclass transforms programmers into elite protocol engineers and smart contract auditors. Operating directly on terminal-driven toolchains like Foundry (Forge, Cast, Anvil) and Hardhat, you will master EVM storage slots, write secure Solidity 0.8.x code, implement ERC token standards (ERC-20, ERC-721, ERC-1155, ERC-4626), audit decentralized finance primitives (AMM pools, lending routers), prevent reentrancy and oracle manipulation hacks, optimize gas consumption down to single opcodes, and construct full-stack DApps with Viem, Wagmi, and Next.js.

Skills You Will Master

Solidity 0.8.x Foundry & Forge Testing Hardhat & Anvil EVM Bytecode & Gas Optimization DeFi AMM Protocols ERC-20, ERC-721, ERC-1155 Smart Contract Security Audits Slither & Mythril Layer-2 Rollups & Bridges Full Stack Web3 (Viem/Wagmi)

Course Curriculum

1. Cryptographic Foundations & Blockchain Internals

Cryptographic primitives: SHA-256, Keccak-256, Merkle Trees, and digital signatures (ECDSA, secp256k1)
Distributed ledger mechanics: Consensus algorithms (Proof of Work vs Proof of Stake), state transitions, and forks
Ethereum architecture: Accounts (EOA vs Smart Contracts), Nonces, Gas, Transactions, and the global world state trie
Setting up local Web3 developer environments: VS Code, Git, Foundry toolchain (Forge, Cast, Anvil), and RPC nodes

2. Solidity 0.8.x Deep Dive & Language Semantics

Solidity fundamentals: Data types, storage layouts, memory vs calldata, mappings, arrays, structs, and enums
Object-oriented Solidity: Inheritance, interfaces, abstract contracts, libraries, and custom function modifiers
Error handling & reverts: Require, Assert, Revert, and custom gas-efficient custom errors (`error InsufficientBalance()`)
Events and logging: Indexing topics, emitted bytecode logs, and off-chain event listening with Viem

3. EVM Internals, Bytecode & Advanced Gas Optimization

EVM memory model: 32-byte storage slots packing, pointer arithmetic, stack execution, and call frames
Advanced gas optimization: Caching array lengths, avoiding SSTORE writes, packing uint128 variables, and immutable storage
Yul inline assembly: Reading and writing directly to EVM storage and memory using assembly blocks
Contract deployment mechanics: `CREATE` vs `CREATE2` deterministic deployment and counterfactual smart contracts

4. Enterprise Toolchains: Foundry & Hardhat Testing

Foundry mastery: Blazingly fast unit testing in Solidity using Forge standard library (`forge test`, `console2.log`)
Foundry Cheatcodes: `vm.prank`, `vm.warp`, `vm.deal`, and simulating multi-user decentralized interactions
Fuzzing and Invariant Testing: Property-based testing to automatically discover breaking edge cases in smart contracts
Mainnet Forking: Testing decentralized contracts against live Ethereum mainnet liquidity states without spending real funds

5. Token Standards & Decentralized Finance (DeFi) Protocols

ERC-20 Fungible Tokens: Implementing safe transfers, approval front-running defenses, and EIP-712 permit signatures
ERC-721 and ERC-1155 NFTs: Dynamic metadata, on-chain SVG rendering, and gas-efficient batch minting (ERC-721A)
ERC-4626 Tokenized Vaults: Standardized yield-bearing vaults and decentralized asset management protocols
Automated Market Makers (AMM): Constant-Product formula (x*y=k), liquidity provision, swap routing, and fee accrual

6. Smart Contract Security, Exploits & Auditing

Reentrancy attacks: The DAO hack dissection, Checks-Effects-Interactions pattern, and OpenZeppelin ReentrancyGuard
Flash loan and Oracle manipulation attacks: Time-Weighted Average Price (TWAP) oracles and Chainlink Data Feeds
Access control vulnerabilities: `tx.origin` phishing, uninitialized owner state, and role-based access control (RBAC)
Automated security auditing: Static analysis with Slither, symbolic execution with Mythril, and manual code review checklists

7. Layer-2 Rollups, Cross-Chain Bridges & Zero-Knowledge Concepts

Layer-2 scaling: Optimistic Rollups (Arbitrum, Optimism) fraud proofs vs Zero-Knowledge Rollups (zkSync, Polygon zkEVM)
Cross-chain communication: Message passing bridges, lock-and-mint mechanisms, and Wormhole/Chainlink CCIP protocols
Upgradable smart contracts: Transparent vs Universal Upgradeable Proxy Standard (UUPS) and storage collision hazards
Introduction to Zero-Knowledge (ZK) Proofs: zk-SNARKs, privacy-preserving transactions, and off-chain computation verification

8. Full-Stack Web3 DApp Engineering & Capstone Defense

Frontend integration: Connecting Next.js/React applications to smart contracts using Viem, Wagmi, and RainbowKit
Handling blockchain asynchronous states: Pending transactions, gas estimations, replacement transactions, and error decoding
Decentralized storage: Pinning immutable NFT assets and protocol metadata on IPFS and Filecoin using Pinata
Capstone Project: Full-Scale Decentralized Lending & Borrowing Protocol with Automated Liquidations, Foundry Test Suite & Etherscan Verification