• Led a team to design and develop a high-performance and scalable advertisement auditing system for Pangolin using Golang, ElasticSearch, which improved revenue of ads which are required to be pre-audited by 10%.

• Designed and developed the full stack Ad aggregator web services which shows multiple ads in a webpage based on Golang, integrated with frontend React application, resulting in $150000 ad revenue increase.

• Implemented a configurable framework to block specific ads for specific traffic based on Golang, which reduces the development workload for engineers and the time needed to implement new business requirements.

• Created internal tools like ad request/response encryption/decryption tool and ad request fetching tool through Django and React.

• Construct unit tests to cover 90% of the major modules to ensure the service reliability and robustness through Goconvey, CppUnit and Junit.

• Refactored the entrance module of the advertising system based on Golang to enhance the readability and maintainability of the code.

• Implemented specific ad preview through adding configurations on web pages, based on Django, React, Redis and Go.

• Designed and implemented the restaurant ordering system integrated in Tiktok supporting third-party payment, based on Spring Boot, Spring Cloud, Mybatis.

• Designed and implemented the e-commerce backend system for mall site and management system, including user, goods, cart, transaction, payment modules, using Spring, Mybatis, Nginx, Redis.

• Participated in the implementation of front-end web pages of mall site and management system, using React, Javascript, Webpack.

• Designed a distributed seckill system with high availability for time-limited promotion activities on Globalegrow, based on Spring Boot, Redis, Kafka and Nginx.

• Participated in the development of the internal dashboard management system from scratch to track profits and revenue for store owners, based on Java, SpringBoot, ReactJS.

• Collaborated with the team focusing on ETL, Data Cleaning, and offline Computing features.

Provided support in multiple local services AWS migration based on Cloudfront, EC2, AutoScaling, ELB and SES.