Sailvan Times · 1 month ago
Backend Engineer (Golang + Solidity) Part-Time
US
Full-time, Part-time
Hybrid
Mid Level
$150K/yr - $210K/yr
3+ years expSailvan Times is seeking a Part-Time Backend Engineer with expertise in Golang and Solidity to support the development of their stablecoin ecosystem. The role involves building robust backend systems and designing on-chain smart contracts, with a focus on financial-grade services and high-concurrency architectures.
E-CommerceInformation TechnologySupply Chain Management
Responsibilities
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)
Build and maintain interfaces for on-chain and off-chain interactions (RPC, event listening, cross-chain bridges)
Write unit tests and security tests for smart contracts and assist in security audits
Develop high-concurrency, highly available backend architectures to handle on/off-chain data synchronization
Create 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 as we continue to grow
Qualification
Required
3+ years of hands-on experience in Golang, with familiarity in frameworks such as Gin, Echo, or Fiber
Proficiency in Solidity and understanding of EVM fundamentals, Gas optimization, and security patterns (e.g., reentrancy, overflow protection)
Experience with Ethereum development tools like Hardhat, Foundry, or OpenZeppelin
Strong knowledge of MySQL, including database design and performance optimization
Experience with Redis and Kafka
Familiarity with Docker, Kubernetes, and microservices architecture
Preferred
Previous experience in stablecoin, DeFi, or cryptocurrency exchange backend development
Knowledge of cross-chain technologies such as LayerZero, Wormhole, or CCIP
Company
Sailvan Times
Sailvan Times operates as a technology-driven export cross-border brand e-commerce company.
1001-5000 employees
Funding
Current Stage
Late StageRecent News
2025-06-03
2025-03-13
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