As you explore the possibilities of a career in Web3 space, you might notice that different job postings often have varying requirements for the same "Web3 Developer" title. In this article, we'll break down the three main types of Web3 programming roles to help you navigate the Web3 development world and find the right path for you. 1. Protocol Developers Protocol developers are responsible for creating and maintaining the core protocols of blockchain platforms. They focus on improving aspects such as security, scalability, and performance. These developers often have a strong background in programming languages like , Go, or , as well as a deep understanding of blockchain fundamentals, cryptography, and distributed systems. Rust C++ Common requirements for Blockchain Protocol Developers: Rust/Go/C++ Programming languages: OpenSSL/Libsodium Cryptography libraries: libp2p/gRPC Networking libraries: Proof of Work/Proof of Stake/Delegated Proof of Stake Consensus algorithms: 2. Smart Contract Developers Smart contract developers create self-executing contracts with the code embedded directly on a blockchain. They ensure that transactions between parties follow specific rules and conditions. These developers should be proficient in languages like or Vyper and have a strong understanding of blockchain platforms such as Ethereum. Solidity Common requirements for Smart Contract Developers: Solidity/Vyper/Rust Smart contract languages: Ethereum/Polygon/Solana/ Blockchain platforms: Binance Smart Chain Truffle/Hardhat/Remix Development tools: Mocha/Chai Testing frameworks: 3. Blockchain Application Developers Blockchain application developers build decentralized applications ( ) that interact with blockchain platforms and smart contracts. They can specialize in either backend or frontend development, or both. dApps 4.1. Backend Developers Backend developers focus on the server-side logic of dApps, handling data storage, smart contract integration, and API development. They should be skilled in languages such as Node.js, Python, or Ruby and have experience with database management and server architecture. Common requirements for Web3 Backend Developers: Node.js/Python/Ruby/Go Server-side languages: PostgreSQL/MongoDB/MySQL Database management: REST/GraphQL API development: Web3.js/Ethers.js Blockchain libraries: 4.2. Frontend Developers Frontend developers work on the user interface and user experience (UI/UX) of dApps. They ensure that users can interact seamlessly with the underlying blockchain and smart contracts. Frontend developers should be proficient in technologies like JavaScript, HTML, and CSS and have experience with frameworks like React, Vue or Angular. Common requirements for Web3 Frontend Developers: JavaScript/TypeScript/HTML/CSS Web development technologies: React/Angular/Vue Frontend libraries/frameworks: Material-UI/Ant Design/Bootstrap UI component libraries: Redux/MobX/Vuex State management: Web3.js/Ethers.js Blockchain libraries: Conclusion In summary, if you're interested in pursuing a career in Web3 development, it's important to understand the three main job types: Protocol developers Smart contract developers Blockchain application developers Take the time to identify your strengths and interests and choose a path that aligns with them. Then, focus on developing the necessary skills and knowledge, such as programming languages and blockchain fundamentals, to succeed in your chosen role. This article is made by the . Join us if you want to find support and resources to develop your Web3 skills and professional network. Contribute3 community Also published here.

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3 Key Web3 Careers for Developers: Protocols, Smart Contracts, Apps

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