Backend system development. Server management. Using Java, Play framework, Spring framework, Mongodb, Mysql, Redis.

【Job description】 Backend APIs development using Java for MyRewards App - Major services developed by me: E-Invoice service and push notification service. - Tech stack: Spring Framework, Spring Boot, Spring Cloud, Hibernate, Oracle, Redis, Maven, Git, Azure. Internal system(CMS) development for MyRewards App using Python. - Features including app content management, marketing event promotion, customer service issue tracking, database routine maintenance job, marketing report and scheduling system. - Tech stack: Flask, Celery, Jinja2, Bootstrap, Gunicorn, Sqlalchemy, Git, Oracle, Redis, Azure. Requirement Analysis, System Design, Code Review, Online troubleshooting. 【CMS contributions】 ・New CMS makes team members work more smoothly and efficiently. ・Solve the problem of inefficiency and inconsistency on dumping data from the database. ・ Flexible resources usage using a distributed message queue system.

【Job description】 ・In charge of development, maintenance, and testing on an e-commerce platform named uDesign. ・Web page development for exhibition events. ・Exchange data using API with AWS warehousing system ・Make system documentation, establish development specifications, and let new colleagues get started quickly.

【Job description】 ・Develop, maintain and test the APIs for the warehouse systems' distribution, inbound and outbound, replenishment, and return modules. ・Exchange data with domestic and foreign logistics providers using APIs. ・Develop and maintain a supplier administration platform. 【Contributions】 ・Established an automated test program for the warehouse system.

【Job description】 ・Develop, maintain and test the Evergreen Logistics and Trade System Platform. ・Support other teams to develop systems. ・Static website maintenance. ・Make system documentation. 【Contributions】 ・Due to the old system, there were many security issues that needed to be corrected. I wrote a tool using the Regular Expression to speed up the tedious work. ・Did some compatibility research for system upgrade such as JFreeChart and POI.