Strong knowledge of PHP web frameworks (such as Laravel, Yii, CodeIgniter) Understanding of MVC design patterns Basic understanding of front-end technologies, such as JavaScript, HTML5, and CSS3 Knowledge of object oriented PHP programming Understanding accessibility and security compliance User authentication and authorization between multiple systems, servers, and environments Integration of multiple data sources and databases into one system Creating database schemas that represent and support business processes Familiarity with SQL databases and their declarative query languages Proficient understanding of code versioning tools, such as Git