At 得物, I redesigned a long-running message-push pipeline and introduced end-to-end measurement and A/B testing. User segmentation and contact-frequency controls helped generate average growth of over 200,000 UV across multiple quarters.
At 二点七二科技, I designed a payment platform for Web3 products including a decentralized wallet, DeFi, and NFT services. The platform shortened payment-channel integration from two to three weeks to three to five days.
At 方便电, I designed a common payment gateway and helped create H5 and POS rental flows for its overseas shared power-bank business. The new-channel integration cycle fell to three to five working days, while payment-related online defects decreased by over 60%.
Earlier, I worked on community commerce, SaaS, apparel supply-chain, and IoT monitoring platforms. Across these projects, I contributed to backend development, architecture and database design, and performance optimization using Java and technologies including Spring Boot, MySQL, and Redis.

