Dates: August 2022 – NowDescription: Participation in team development of telegram bot for information exchange between providers and consumers of services using Spring Boot, Hibernate, PostgreSQL, Flyway, Git, Maven. Project management is organized according to the SCRUM methodology. CI/CD is implemented using Jenkins deployed on AWS. The H2 in-memory database is used for testing.Dates: April 2022 – August 2022Description: Working with Spring Boot, Spring MVC, Spring Core, Hibernate, REST API, PostgreSQL. Developed from scratch API for the postal service: customer registration, authorization by phone number, creation of branches, deliveries, processing of deliveries and sending messages about the status of deliveries. REST API requests were tested using Postman and Swagger. To cover business logic, Unit and Integration tests were written using the Mockito library.Dates: January 2022 – April 2022Description: A web project where Spring Boot, Spring MVC, Spring Core, Hibernate were used. The MySQL was used as a database and on a service level of the application, the transactions were implemented. The code was covered by unit and integration tests using the Mockito library.Dates: September 2021 – January 2022Description: A project where pure JDBC was used to work with the database with its own connection pool, java.util.concurrent for multithreading, its own logger. The PostgreSQL was used as a database and BlockingQueue as a connection pool. The code was covered with unit tests using the Mockito library.Dates: December 2020 – September 2021Description: Multiple Java tasks using Java 8 features, usage of the java.util.concurrent package, specifically ThreadFactory, Semaphore, BlockingQueue, ExecutorService, javax.swing for graphic applications and animations. Code review.Dates: January 2020 – December 2020Description: Multiple tasks using Java 8 features. Implementing tasks using different types of collections, String parcing, implementation of various algorithms, e.g. Huffman code for data compression, breadth-first and depth-first search.Dates: August 2009 – January 2020 (Information security specialist)Description: development of a documentation package for licensing activities in the area of cryptographic information protection. Development of technical tasks, technical conditions, software and design documentation, registration with executive authorities. Organization of obtaining expert opinions on software and hardware products in the State Service of Special Communication and information Protection of Ukraine.