Fullstack developing of site builder in microservices architecture. Design and implementation of frauders detection mechanism and automatic erasing of forbidden site content.Design and implementation of multilingual functionality.Technologies: - Backend: Kotlin (and Java 17 a little bit), Postgres, DynamoDB, Spring (IoC, Web), Redis, GRPC, JetBains Exposed, Gradle, JUnit, Mockk, Git.- Frontend: Vue.js, TypeScript, SSR, NodeJS, Jest.

Development of Service Orchestration framework in microservices architecture.Participating in several PoCs, some of them in joint development teams with customer (European telecommunications provider).Implementation of choreography microservices interaction approach instead of orchestration.Technologies: Microservices architecture, Java 8, MongoDB, Spring (Boot, Web, Cloud, Data, AOP, Security), Kafka, Camunda, Hazelcast, Undertow, Docker, OpenShift, Cucumber, JUnit, Mockito, Git.On a voluntary basis:- Mentorship in Netcracker education center;- Internal Netcracker frameworks trainings conducting.

Maintenance of existing Netcracker's Order Management product modules: - bug fixing; - implementing small changes in product functionality; - supporting implementation project with product best practices; - leading support team of 5 developers.Internal framework relating to 3GPP mobile services activation: - participating in architectural decisions; - several brand new product modules implementation; - leading team of 3 developers.Development of business analysts design tool which provides an ability to simplify configuration and documentation of Netcracker's Order Management catalog. Design and implementation of Netcracker's TMF641 REST API.Technologies: - Backend: Java 7, Oracle DB, Spring (AOP, IoC, Data, Web), JBoss Weblogic, JUnit, Mockito, Ant/Maven, Subversion. - Frontend: JavaScript, mxGraph, w2ui.