Position: Backend Engineer
Our client a rapidly growing eCommerce company is seeking a Backend Engineer with expertise in Golang and Solidity. This role focuses on building and maintaining robust backend systems for issuance clearing settlement and risk control while designing and supporting on-chain smart contracts. The ideal candidate has strong Golang experience and hands-on knowledge of Solidity.
Primary Responsibilities
Build and maintain interfaces for on-chain and off-chain interactions (RPC event listening cross-chain bridges)
Develop financial-grade backend services using Golang including modules for authentication clearing risk control and payment instruction processing
Design develop and maintain Solidity smart contracts for stablecoin operations (ERC20 standard minting/burning escrow mechanisms)
Write unit and security tests for smart contracts and assist with security audits
Develop high-concurrency highly available backend architectures to handle on/off-chain data synchronization
Prepare API documentation and deployment scripts and contribute to CI/CD pipeline development
Troubleshoot production issues such as performance bottlenecks on-chain confirmation delays and node synchronization
Undertake ad hoc projects to support platform growth
Core Qualifications
3 years of hands-on experience in Golang with experience in frameworks such as Echo Fiber or Gin
Proficiency in Solidity and understanding of EVM fundamentals Gas optimization and smart contract security patterns (e.g. reentrancy overflow protection)
Experience with Ethereum development tools like OpenZeppelin Hardhat or Foundry
Strong knowledge of MySQL including database design and performance optimization
Experience with Kafka and Redis
Knowledge of Docker Kubernetes and microservices-based architectures
Nice-to-Have Qualifications
Previous experience building backend systems for stablecoins DeFi platforms or cryptocurrency exchanges
Understanding of cross-chain technologies such as Wormhole LayerZero or CCIP
Required Experience:
IC
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