• Fast growing startup built on the idea of universal digital insurance platform for sourcing, advising and managing clients by enhancing prospect & client data and presenting it for action. Stack: Java, Kotlin, TypeScript, AWS. - Took part in the full cycle of software creation from architecture to full implementation of services.

• Admission to the university online - high-load services based on Java 11, Spring Boot, Oracle, Postgres, Kafka, Docker and Kubernetes: - Developed the entire backend application as part of a team, from architecture planning and coding to test coverage and documentation. - Created Docker images, helms and pipelines on Jenkins CI.• Population Census 2021 - service with more than 30 millions of users per month. Stack: Java 11, Spring Boot, Oracle, Apache Cassandra, Kafka, Docker and Kubernetes - Developed a storage layer and application status model. - Optimized database queries. - Wrote a toolkit for working with Apache Kafka. • Electronic Patent Generation System (FIPS) – an application based on Spring 5, Postgres, ArtemisMQ and various document generation libraries. - Developed generation algorithms and integrated the system with subcontractors.

• Development of an integration bus for document management services on the stack Arenadata, Apache Nifi, Clickhouse, Kafka, ElasticSearch.- Deployed a streaming data processing cluster using Arenadata.- Created a data provenance monitoring system based on ElasticSearch.