Private tutoring is learning outside the time of formal education to improve students' understanding of the lessons learned at school. However, in the implementation of private learning, problems often occur, including students cannot find suitable private tutors quickly, in addition to material management, exercises / quizzes and payments are still recorded manually and often the data is lost. This problem will be handled by creating a system that can help private learning to be carried out better and more efficiently. This study aims to create a Backend application that will provide services for client applications in the form of tutor search services, class booking management, material and quiz management, private class permits, and others. In addition, a web-based admin page has also been developed to monitor data from the application system that has been used. There are 4 groups of users with different access rights on the system, namely, Tutors, Students, Parents and Admin. This research starts from the needs analysis stage, design, development to testing using the Scrum development method, Backend web service and admin web pages developed using the Flask framework and also used several cloud computing services from Google Cloud Platform, namely Google App Engine, Google Datastore and Google Storage. Backend system testing is carried out using unit and integration testing to ensure every system logic, from these tests produce 155 Test Cases with a status of 100% successfully tested without errors, then for the admin web page a test will be carried out using Blackbox Testing and get the appropriate results, which stated that the system was feasible and running well.