I am Lei Zhao, a freelance software developer from Shanghai. I provide full-stack web development, data management, and many other software development related services. These services can be charged either on a hourly basis or on task-by-task basis. I am familiar with Python, JavasScript, SQL, C, Clojure, Angular, Vue, Java, Scala, OLAP, ETL. I have intensive experience with both MySQL and PostgreSQL.
My contact info can be found at here.