Backend

Java, Java EE, Spring, Spring Boot,

Hibernate, PHP, Siebel Tools

Frontend

Vue.JS, Angular, React, Bootstrap, CSS3, HTML5

Database

PostgreSQL, MySql, Oracle DB, MSSQL Server

DataExchange

JSON, SSL, XML, WebSocket

Mobile

Objective-c, Android Design, Android SDK

Testing

Spectron, JUnit5, Jest

Build Tools

Webpack, Maven, Siebel Tools

Business Tools

YouTrack, Jira, Swagger, SoapUI, Siebel

OS,

Servers&Virtualization

Linux, MS Windows, Oracle, HP, IBM,

Oracle VM, Apache Tomcat, IIS, NGINX, Siebel