Build decentralized applications and smart contracts
Blockchain Development is an emerging field focused on building decentralized applications (dApps), smart contracts, and blockchain solutions. As a blockchain developer, you will write smart contracts in Solidity, develop dApps using Web3 libraries, work with blockchain platforms like Ethereum, understand consensus mechanisms, and build decentralized finance (DeFi) applications. This comprehensive roadmap covers blockchain fundamentals, cryptography, Ethereum and Solidity, Web3.js/Ethers.js, smart contract security, testing and deployment, and emerging technologies like Layer 2 solutions and NFTs. Blockchain developers are in high demand as the industry grows, working on cryptocurrency exchanges, DeFi platforms, NFT marketplaces, and enterprise blockchain solutions. The role requires strong programming skills, understanding of distributed systems, security mindset, and keeping up with rapidly evolving blockchain technology.
6-8 weeks
Blocks, chains, hashing, distributed ledger
Public-key crypto, digital signatures, hashing
PoW, PoS, Byzantine Fault Tolerance
Bitcoin protocol, transactions, mining
10-12 weeks
EVM, gas, accounts, transactions
Variables, functions, modifiers, inheritance
ERC-20, ERC-721, contract patterns
Hardhat, Truffle, Remix IDE
8-10 weeks
Connecting to blockchain, transactions, events
Wallet integration, user authentication
React, Next.js for dApps
Decentralized storage, file uploads
8-10 weeks
Reentrancy, overflow, access control
Slither, MythX, security audits
Unit tests, integration tests, test coverage
Checks-Effects-Interactions, upgradeable contracts
8-10 weeks
DEX, lending, yield farming, liquidity pools
Chainlink, price feeds, off-chain data
ERC-721, ERC-1155, NFT marketplaces
Governance, voting, treasury management
6-8 weeks
Mainnet, testnets, gas optimization
Polygon, Optimism, Arbitrum, scaling solutions
Cross-chain bridges, multi-chain dApps
Event monitoring, analytics, maintenance