Full Stack Developer (Web2 + Web3)

Overview

About the Role

Key Responsibilities

• Design, develop, and maintain full-stack applications (frontend + backend)
• Build and integrate **Web3 features** into existing and new platforms
• Develop and maintain **SDKs for product integrations**
• Work with **blockchain nodes, RPC endpoints, and indexing services**
• Integrate and manage **crypto wallets** (MetaMask, WalletConnect, etc.)
• Develop and deploy **smart contracts using Solidity**
• Work with **EVM-compatible Layer 1 networks**
• Implement secure and scalable backend architectures for blockchain interactions
• Collaborate with product and engineering teams to design decentralized solutions
• Optimize performance, security, and scalability of distributed applications
• Work with **OpenZeppelin libraries** (smart contract standards, security modules)
• Build APIs and services that connect Web2 systems with Web3 infrastructure

Core Engineering

• Strong experience as a Full Stack Developer (3+ years preferred)
• Proficiency in modern frontend frameworks (React.js / Next.js or similar)
• Strong backend development experience (Node.js, NestJS, or similar)
• Experience with REST APIs and GraphQL
• Database experience (PostgreSQL, MongoDB, Redis)

Web3 / Blockchain Expertise

• Strong hands-on experience with **Solidity smart contracts**
• Experience working with **EVM-compatible chains (Ethereum, Polygon, BSC, Arbitrum, etc.)**
• Deep understanding of **wallet integration and authentication**
• Experience with **blockchain nodes, RPCs, indexing, and event listeners**
• Familiarity with **Web3 libraries (ethers.js, web3.js, viem, wagmi, etc.)**
• Experience using **OpenZeppelin contracts and security standards**
• Understanding of gas optimization and smart contract security best practices

Integration & SDK Development

• Experience designing and building **developer SDKs or APIs**
• Ability to integrate multiple products into unified developer tools
• Strong understanding of modular architecture and reusable libraries
• Experience with CI/CD for SDK publishing and versioning

Nice to Have (Bonus Skills)

• Experience in **Flutter (mobile app development)** or React Native
• Experience building **mobile wallets or crypto apps**
• Knowledge of **Layer 2 scaling solutions**
• Experience with **zero-knowledge proofs (ZK), rollups, or DeFi protocols**
• DevOps experience (Docker, Kubernetes, AWS/GCP)
• Experience with **cross-chain bridges or interoperability protocols**
• Familiarity with **crypto security audits**
• Experience in **high-performance backend systems**

Benefits

• Competitive salary [based on experience]
• Opportunity to work on cutting-edge **blockchain + AI + Web3 systems**
• Direct impact on product architecture and technical decisions
• Fast-paced startup environment with global exposure
• Learning and growth in advanced blockchain engineering
• Conference, hackathon, and research participation support
• Access to early-stage Web3 infrastructure projects