This article describes implementation and functionality of work record system. It is a three-tier system that includes the implementation of the client and server side, as well as the creation and use of a database used for storage. The project represents an approach to developing web applications using technologies such as Node.js and React, using the JavaScript programming language. The database used is MongoDB, which is a non-relational database. Supported functionalities include administrator and worker login, adding new workers, tasks, viewing active and completed tasks, paying workers according to the calendar, removing workers and tasks, entering worked hours during the selected date, completing tasks and insight into personal information.