Task management system

A task management system is not just a backend project but the project that my abilities as a real software engineer with backend focus started to grow and to be seen and formed I started this project as a software engineer who takes the raw problems and business needs of a project then turned those into documents that the system were implemented upon. in addition this system was implemented to target a flexible subsystem that has inside it a lot of functions, optimization and aggressive security that makes each user to only access their resources and no more than that after. Also in this project and to have the combination of a solid system with strong validation and integrity with a flexible dynamic fast database that can receive the info in nearly O(1) in practice a combination of SQL and NoSQL was used using the MongoDB and MySQL database management systems.