Dennis Xu

Enhancing user engagement system by Implement ELK to backend. Troubleshooting existing bugs and promptly addressing customer complaints to resolve their issues within 1-2 days. Implementing peer code review for other developers. Propose backlog for the flaws in existing merchandising plan system. Learning 3 main parts of new data clustering systems by React, Springboot and PostgresSQL.

Maintaining sample analysis system by JQuery, PHP, MYSQL. Independently finished developing all purchase order system and user management system by the technology stack of Vue.js and Laravel, MYSQL. Promptly collaborated with stakeholders in daily stand up meeting, with agile/scrum working methologies

Used React to write frontend code, Node.js and MYSQL as backend. Took part in 5 Shopify application projects, and successfully published in Shopify App Marketplace. Maintained the exiting application, and created new features for the company.

Implemented a P2P library mobile application using purified HTML, CSS and JavaScript with Cordova. Developed building management web application and tax-refund web application in Laravel framework using PHP, Node.js and MYSQL. Worked with release team to publish mobile applications to Apple App Store and Google Play Store.

● Leaded a team to design and develop the company's new website with plain HTML, CSS, and JavaScript
● Set up performance monitoring on the web server to track CPU/memory usage and website traffic using Linux shell script
● Created monthly performance report of the company's website and reviewed with senior management
● Communicated with stakeholders to gather requirements for the company website