Working on a backend in Accounting Experience team. Implemented customisable CSV export builder. Working on matching logic for receipt inbox (a feature allowing users to submit their receipts to a special e-mail address and get them attached to relevant transaction automatically). Done a number of performance optimisations as well. Onboarding/training new-joiners about the product and services our team is responsible for.

Development of Multilogin product. Working with a Java team on both the client application and backend services. Implementing features, fixing bugs, solving technical debt and scalability problems, designing service APIs, making DB migration scripts, unit and integration tests, code reviews, service deployments. Mentoring Junior Developers, collaborating with frontend team on UI integration and with C++ team on making JNI services. Doing technical interviews for potential employees.Spring Framework, Spring Data Reactive, WebFlux, Micronaut Framework, Cassandra, MySQL, GraalVM native-image, Proguard, Maven, JUnit 5, Docker Swarm.

Working with a Java team on two projects, one is existing message based system, another one is designed from the ground up dictionary service. Providing bug fixes, solving technical debt, implementing features, unit and integration tests, database migration scripts, configuring static code analysis tools, doing code reviews and technical interviews for potential employees, mentoring junior developers.JPA/Hibernate, Oracle DB, Liquibase, Flyway, Spring Framework, JMS, WebMethods, JUnit, Maven.

Development of JRebel. Working on all aspects of the product, core libraries, test framework and tests, container and framework integrations and IDE plugins.

Worked on multiple projects for banks and mobile operators, maintaining some existing ones and designing others from the ground up. Oracle DB, Spring Framework, XML/XSLT.Also worked on the RefactorIT project - core plugins and IDE integrations.

Development of booking system (both offline and online) for Estonian theatres.