RTK Soft Labs, a subsidiary of Rostelecom, is one of the largest European digital services providers.Developing and maintaining message exchange infrastructure for the banks and insurance companies. Our products help clients interact with governmental services such as the Ministry of Internal Affairs, The Federal Tax Service, Traffic police services, and others throughout the Interdepartmental interaction system. We ensure that messages are sent in compliance with the exchange rules, provide an audit, ensure request limits, solve scalability issues, ensure the authenticity of participants and provide data integrity of the messages using digital signatures.Technology stack:Spring Boot · REST APIs · PostgreSQL · Redis · AWS S3 · Flyway · Liquidbase · TypeScript · Lombok · Elasticsearch · ActiveMQ · RabbitMQ · Git · Java · Spring Framework · SOAP · Hibernate · JUnit · Maven · Mockito

Development of the business activity monitoring system that allows clients to collect, store and visualize data about their process execution workflow described in the BPMN 2.0 notation. This project was a part of the master's program under which student teams worked on cases proposed by the industry.Technology stack:Spring Boot · Hibernate · Git · Java 11 · Camunda BPM · Gitlab · SonarCube · Jira · PostgreSQL · Selenium · JUnit · Maven · MockitoResponsibilities:• As an architect: selection of the optimal architecture for the future system following the Attribute Driven Design principle, which consists of iterative architecture design, taking into account significant quality attributes and functional requirements of the future system• As a developer: development of the data exchange modules between our system and the BPM engine - Camunda using REST. Defining the domain area using Hibernate entities and developing service and persistence layers using the Spring Boot framework.• As a tester: development of a wide variety of automated tests - unit, integration, system, and acceptance using frameworks such as Junit, Mockito, and Selenium.

1) Development of an automated testing system for web applications in Java with Selenium and Cucumber frameworks. My task was to create a tool with which analysts could write test scripts in natural language using keywords and execute them automatically without the help of a dedicated tester.The task was completed, and the tool turned out to be promising and went for further development.2) Development of a search system for tenders on various tender platforms for given attributes. My task was to develop an application from scratch for the internal purposes of the company for the search and management of tenders. The project was developed using the CUBA framework, which included Spring, Vaadin, and PostgreSQL.The finished product has been accepted by the customer and is used for efficient tendering.3) Support and optimization of the system of banking operations.My responsibilities included fixing vulnerabilities in the legacy data exchange system between the components of the banking system, as well as optimizing these operations. Our team has optimized several system modules in accordance with modern requirements for the security of banking systems.

Development of the client part of the access control system for sports events for "WorldSkills Kazan 2019" and "Soccer World Cup 2018" events.My responsibilities included developing a database, an application user interface, a Windows installer, and writing client-side code to interact with the server via the SOAP protocol. There are was such business constraints such as the ability to work in the standalone mode, perform data synchronization, and process, incoming guests, in a multithread manner.The project was completed, and the worldwide events were passed successfully.