My Recent Projects

ShopWise: Amazon-like E-commerce Site

Designed and implemented a microservice architecture with Spring Cloud. Used Consul for service discovery, Hystrix for resilience and Feign & Nginx for load balancing.
Reduced latency with read-through cache in Redis and MySQL query optimization in pagination and predicates. Utilized static site generation via Thymeleaf to boost loading speed of popular pages.
Improved scalability with horizontal scaling by sharding with ShardingSphere to handle large datasets expectedly of GB-level. Implemented read-write splitting to perform query-based load balancing.
Implemented real-time product search by Elasticsearch, reached second-level new data indexing (< 1s).
Handled bursts of requests with asynchronous processing using RabbitMQ. By decoupling the order service and payment service, the system supports high currency of 1000 TPS.

Not on github yet. I will find some time to clean up and upload the code.

Designed a photo-video-sharing hub with MVC RESTful architecture and built the system with the combination of MongoDB, Express, React, Node and deployed it to Amazon EC2.
Worked as the leader of an engineering team under supervision of a PM and followed Agile practices.
Implemented customized UI components designed by the UI engineer using Material UI and PropTypes.
Integrated live updates by polling in Effect Hooks and State to trigger re-renders. Featured infinite scroll based on react-infinite-scroll and enabled pull-to-refresh. Achieved 7 minutes average session time.
Implemented content recommendations with tailored PageRank on users’ social network and history. Cached results in MongoDB with 3-hour TTL to minimize the impact on responsiveness.