Web3 and Blockchain Career Guide: Roles, Skills and Roadmap
An interactive guide to building a career in blockchain and Web3 development. It covers the main engineering roles and the skills each expects, a self-scored Web3 readiness assessment, tiered learning roadmaps with named study resources, a portfolio project generator, side-by-side comparisons of the major chains, a smart contract security checklist, a role-and-experience salary estimator, and a 90-day plan for moving from fundamentals to applying. The interactive tools run in the browser and save your progress locally.
Web3 roles and the skills they expect
The guide maps six engineering roles — smart contract developer, blockchain engineer, DeFi developer, Web3 frontend developer, protocol architect and security auditor — and the skills that recur across them, including Solidity, Rust, Ethers.js and Web3.js, and DeFi protocol knowledge. A six-question self-assessment scores your readiness across Solidity, multi-chain experience, DeFi, open-source contributions, tooling and cryptography.
Learning roadmap and portfolio projects
Three tiered paths — fundamentals, DeFi developer and protocol architect — list their topics and typical study duration, alongside named public resources such as CryptoZombies, Alchemy University, OpenZeppelin documentation, Chainlink Academy and Flashbots MEV research. A project generator suggests portfolio builds matched to your assessed level, on a Solidity, Hardhat, React and Ethers.js stack, deployed to a testnet before mainnet.
Comparing blockchain ecosystems
Tabs compare Ethereum, Solana, Polygon and Avalanche on ecosystem maturity, trade-offs and learning curve — Solana requires Rust, while Polygon is EVM-compatible. An interactive simulator shows how transaction cost scales with gas price for a simple transfer, a token swap and an NFT mint, illustrating why Layer 2 networks are the cheaper place to deploy.
Smart contract security and compensation
A pre-deployment checklist covers reentrancy, integer overflow, access control, gas limits, front-running, oracle manipulation, flash-loan attacks and signature replay, with a reminder to have contracts professionally audited before mainnet. A salary estimator varies by role and experience level, and notes that Web3 offers often combine base pay with token allocations, so total compensation depends on how the project performs.