2GIS World is an offline map and a business directory of the entire world* Backend: Java, PostgreSQL, Python, GO, Gradle, Rapidoid, Vert.x, Hazelcast, Guice, Dagger2, Spring, HikariCP, Tarantool, PostGIS, QGIS, Imposm3, JUnit, Mockito, Ansible

ModulPOS - Software provides following operations:- control sales on retail points- control relationships between providers and customers- manage both prices and sales items* Frontend: Android SDK, Dagger2, Crashlytics, Errbit, ACRA, SQLite, Gradle* Backend: Java, Spring Core, Spring Boot, Spring Security, MongoDB, Gradle

License Automation (Management and inventory of all keys for products produced by Parallels)* Frontend - Servlets, Turbine * Backend: Java, PostgreSQL, Gradle, Nginx, Quartz, Tomcat, Hibernate, JDBC, RESTlet, XML-RPC, JMX, Londiste replication, TestNG, Mockito, Zabbix* Ecommerce: CleverbridgePartner Central (perspective portal for customers integrated with License Automation service)* Fontend - Javascript (Dojo), AJAX, Grunt, Errbit, Highcharts* Feedback Service: Uservoice (integrated with Partner Central)

- License Automation (Management and inventory of all keys for products produced by Parallels)Technologies: Java, Tomcat, Turbine, TestNG, XML-RPC, Jackson, Gradle, Ant, PostgreSQL- Inner projectLiferay, Dojo, Spring Core, Spring Security, Spring WebMVC, Spring Roo, Apache Tiles, Grails

- "Platezh" (the system of reception and registration payments. It's brings togetherservice providers and agents to receive payments from individuals)Technologies: Java, Tomcat, JSF(ICEfaces), Spring IoC, Spring Security, Spring MVC, Web Service(SOAP), Groovy, Maven, TestNG+EasyMock, Oracle

- "Platezh" (the system of reception and registration payments. It's brings togetherservice providers and agents to receive payments from individuals)Technologies: Java, Tomcat, Spring IoC, Spring Security, Spring MVC, Maven, Oracle