iainhuang

•Led end-to-end design of deposit and withdrawal flows, covering address allocation, on-chain scanning, confirmation policy, idempotent crediting, fund sweeping, withdrawal review and signing•Abstracted Chain, Asset, Address, Deposit and Withdrawal into a traceable fund state model, cutting deposit crediting from 15 to 12 minutes and withdrawal processing from 25 to 20 minutes•Defined on-chain event identity rules on chainId, txHash and logIndex with an append-only ledger, reducing reconciliation variance from 0.5% to 0.2% across 3M+ custodial addresses•Standardised Maker-Checker approval, freezing, risk tiering and 10+ exception playbooks for Reorg, RPC timeout and nonce conflict, cutting case handling from 6 to 4 hours•Led 6 teams across Wallet Engineering, Risk, Security and Finance through 20+ releases at 88% on-time delivery, and cut Indexer latency from 30 to 24 seconds through RPC node tuning

•Designed the campaign lifecycle from configuration and wallet connection to on-chain verification and reward fulfilment, launching 15+ task templates across Transfer, Swap, Mint and NFT holding•Defined verification rules on chainId, contract, event, confirmation threshold and unique event keys, raising verification accuracy from 85% to 92% and cutting false positives by 40%•Built a tiered labelling model across wallet address, device, funding source and interaction history with four disposition paths, lifting sybil detection from 70% to 80% and cutting reward cost by 15%