James Wang

Designed and implemented event-driven backend systems for real-time NFT reward distribution on Substrate-based chains. Developed secure APIs and indexing pipelines to track blockchain events and expose data to internal and external consumers. Integrated smart contract logic into backend workflows to support both wallet-based and custodial user experiences. Built admin dashboards and internal data services using TypeScript and Rust. Provided mentorship and documentation for onboarding engineers to the NFT protocol architecture and tooling.

Built and maintained on-chain bonding and staking smart contracts integrated with real-time APIs to reflect DeFi asset movements. Designed scalable API services to expose treasury metrics and yield calculations for dApp frontends. Implemented backend services using TypeScript and viem to interact with EVM chains, fetch events, and serve computed data. Created detailed internal documentation for smart contract deployment, usage, and backend interaction. Collaborated with frontend and design teams to streamline user flows and reduce backend latency.

Developed EVM-based smart contracts supporting liquidity pooling, limit orders, staking, and reward distribution with safety checks. Built high-throughput backend systems for swap routing and order book aggregation using Node.js and Redis. Integrated backend monitoring and alerting for smart contract failures, gas anomalies, and frontend sync delays. Reduced backend error rates by over 40% through improved rate limiting, retry strategies, and failover handling. Authored technical documentation and API references to support partners and frontend integrators.