Position Overview

We are seeking a highly skilled Blockchain and Smart Contract Engineer to join our innovative and rapidly growing team. The ideal candidate will possess deep expertise in developing, deploying, and maintaining decentralized solutions with a passion for blockchain technology, DeFi, and Web3. You will be responsible for designing and implementing secure smart contracts, contributing to the architecture of decentralized applications (dApps), and collaborating with cross-functional teams to deliver high-impact blockchain products.

Key Responsibilities

• Design, develop, test, and deploy smart contracts on blockchains such as Ethereum, Solana, or other EVM-compatible chains.

• Build and maintain decentralized applications (dApps) and related backend services.

• Audit, optimize, and document smart contracts to ensure security, gas efficiency, and maintainability.

• Stay up to date with blockchain trends, best practices, and emerging technologies.

• Collaborate with product managers, UI/UX designers, and other developers to define, design, and deliver new features.

• Participate in code reviews, security assessments, and troubleshooting of blockchain-related issues.

• Integrate smart contracts with web frontends and off-chain systems using APIs and oracles.

• Contribute to open-source projects and engage with the broader crypto community as required.

• Bachelor’s degree in Computer Science, Engineering, Information Technology, or related field (advanced degrees are a plus).

• 3+ years of experience in blockchain development, including hands-on smart contract programming.

• Proficiency in Solidity and/or Rust; familiarity with Vyper, Go, or other blockchain-oriented languages is a strong plus.

• Deep understanding of blockchain protocols, standards, and consensus mechanisms.

• Experience with web3 libraries (ethers.js, web3.js) and frameworks (Hardhat, Truffle, Brownie, Anchor, etc.).

• Strong knowledge of cryptographic principles, security best practices, and smart contract vulnerabilities.

• Familiarity with DeFi, NFTs, Layer 2 solutions, and DAO infrastructures.

• Experience in using version control (Git) and agile development methodologies.

• Excellent analytical, problem-solving, and communication skills.

• Ability to work independently in distributed and multicultural teams.

We offer an attractive remuneration package and fringe benefits to the right candidate. Interested applicants please send detailed resume stating present and expected salaries, as well as date of availability, by clicking "Apply" or by sending it to recruitment@gtjas.com.hk.

(Data collected will be kept strictly confidential and used for recruitment purpose only.)