Full-stack developer must introduce with the following:
Programming Languages : A full-stack developer must have proficient in more than one programming language like Java, Python, Ruby, C++, etc. One must familiar with different ways to structure design, implement and test the project based on the programming language.
Front End : One must familiar with the front-end technologies like HTML5, CSS3, BootStrap, AngularJS, VueJS, ReactJS, JavaScript, Angular, etc. The understanding of third-party libraries like jQuery, Ajax, SASS, adds more advantages.
Frameworks : Proficiency in words that are accompanied by development frameworks like Spring, Spring Boot, MyBatis, Django, PHP, Hibernate, js, yin, and more.
Databases : One must be familiar with at least one database. If you are familiar with MySQL, Oracle, SQLite, Postgres, MongoDB, Cassandra, Apache storm, Sphinx, etc,.
Design Ability :The knowledge of prototype design like UI and UX design is also necessary.
Server : Experience with Apache or NGINX would be beneficial. Good knowledge of Linux helps enormously when administering servers.
