matsuri243

- Designed and developed a high-performance microservices backend for a central limit order book (CLOB) in Rust, achieving 10,000+ TPS. Components included API server, matching engine, DB/on-chain indexers, WebSocket server, and cron jobs, integrated with Kafka, PostgreSQL, and Kubernetes. - Built and optimized decentralized exchange (DEX) protocols, supporting $71B+ in total traded volume (TTV) and $1.5M+ in total value locked (TVL). - Developed and audited Solidity smart contracts, improving security and reliability of on-chain operations. - Implemented blockchain indexing using GraphQL (subgraph) to optimize on-chain data queries. - Led implementation of complex business logic: lending/borrowing fee calculation, funding rate & funding fee models, on-chain transaction settlement, and codebase refactoring to improve performance and reduce memory usage.

- Implemented cross-chain message relayers and data oracles, enabling seamless interoperability between multiple blockchains. - Developed and deployed Solidity smart contracts for cross-chain token swaps and secure data feeds. - Built supporting backend services and integrated Web3 front-end features, improving system usability for cross-chain users.

- Developed microservice-based backend applications in Java (Spring Boot) with REST APIs. - Wrote and maintained unit tests using Mockito, ensuring code quality and stability.