A website for developers facing performance problems in their website or apps. By using data report SDK, users can view performance metrics like load time, network latency and FPS on web browser or devices.
There are competing products industry like OneAPM and New Relic.

• I program the website full stack using Angular, Express and Node. I use D3.jd and EChart for data visualization.
• I designed the project architecture which was build on microservice based on Node. I use Elastic Search and OpenTSDB for store data. I use Kafka for module decoupling and reducing load then traffic is heavy.
• I was also responsible for the OPS work.

A solution for analyzing iOS and Android crash report to find out when and why App crashed. Reports on the website or email generated from crash data group by eigenvalue help developers find out bugs in code. In addition, the data analyzing support iOS symbolicating and Android retrace.

• I program the website full stack using Angular, Express, Koa and Mongoose including crash report, symbol file management and eigenvalue rules.
• I design and program the core module of iOS symbolicating and Android retrace.
• I design a priority queue in MySQL for guaranteeing real-time data analyzing.

Allow users create 2048 game with their own words or images.

• I use HTML5, CSS3, PHP and MySQL building the website. I use FileReader to preview and upload and use Newton's law of cooling to make a top list.
• I develop and maintain the website by myself and the website has 44 million page visits, 220 thousands games and 1 million images.