Android, Android Applications, Apache, Apache Cassandra, Application Programming Interface (API), CSS (Cascading Style Sheet), Cross-Functional, HTML5, IBM WebSphere Application Server, Internet Application, Java, Java Platform Enterprise Edition (Java EE/J2EE), JavaScript, Microservices, NoSQL, Oracle Database, Performance Management, Telecommunications Industry, Tomcat, Unit Test, Unix Shell Programming, Usability Engineering, Web Services, jQuery