o1 exchange is currently hiring a Senior Web3 Full-Stack Engineer, responsible for full-stack development and architecture design of Web3 products, including DApps, smart contracts, and the blockchain interaction layer. You will be deeply involved in the entire product lifecycle from underlying architecture and smart contracts to front-end interactions, collaborating closely with product, design, and AI engineering teams to build the next generation of Web3 infrastructure and applications.

Responsibilities

• Lead full-stack development and system architecture design for Web3 products (DApps, smart contracts, interaction layer, etc.).
• Design and implement underlying architecture, protocol layers, and APIs, building the overall framework for front-end, back-end, and contracts.
• Implement core logic such as wallet integration, on‐chain interactions, signing, gas optimization, data retrieval, and visualization.
• Continuously optimize system performance and security to enhance user experience and on‐chain interaction efficiency.
• Collaborate closely with product, design, and AI engineering teams to drive full product iterations from concept to launch.
• Stay up to date with cutting‐edge technologies such as ZK, Account Abstraction, Intent, Layer 2, and DeFi, and drive their practical implementation.

Requirements

• Bachelor’s degree or higher in Computer Science or a related field.
• At least 5 years of full-stack development experience in Internet or blockchain, including a minimum of 2 years in hands-on Web3 roles.
• Proficient in the following tech stacks:
• Back-end: Node.js / TypeScript / Nest.js / Go
• Smart Contracts: Solidity / Hardhat / Foundry / Ethers.js / Web3.js
• Front-end: React / Next.js / Vue / Tailwind / Web3Modal / wagmi
• Familiar with major public blockchains (Ethereum, BSC, Polygon, Arbitrum, Base, Solana, etc.) and core mechanisms such as Layer 2, DeFi, NFTs, and DAOs.
• Strong computer science fundamentals with excellent architectural design and abstraction skills.
• Knowledgeable in smart contract security standards and common vulnerabilities.
• Ability to read English documentation fluently and quickly master new technologies and open-source frameworks.
• Open-source contributions, GitHub projects, or experience with well-known Web3 initiatives are a plus.

Preferred Qualifications

• Experience with ZK (Zero-Knowledge Proofs), Account Abstraction, Intent, and Layer 2 Rollup architectures.
• Background in Trading platforms, LaunchPads, DEXs, NFT Marketplaces, or AI‐powered Web3 projects.
• DevOps skills including Docker, Kubernetes, and CI/CD.
• Deep passion for the Web3 ecosystem, with an entrepreneurial mindset and sense of ownership.
• Top-tier engineers have no salary cap; compensation is negotiable.