● Refinement and development of a large, high-load multi-module monolith for the needs of clients in the banking sector and insurance companies. ● Development of a subsystem for checking client personal data in government services. ● Creation of an architecture and development of a new company product: a system for masking clients' personal data (hundreds of millions of records) with complex business logic. ● Refinement of a test framework (LowCode) for testing business scenarios and monitoring system load indicators. ● Bug fixes, performance improvements and profiling of a high-load application. ● Writing complex SQL queries and scripts, their optimization and refinement - PostgeSQL and Oracle.

● Fixing various errors and developing a monolithic high-load management system for critical corporate business processes. ● Refining and supporting a pluggable application that is part of the microservice backend of a mobile application for servicing and configuring POS terminals. ● Developing a microservice for working with the online banking system of the TranzWare Online functionality. ● Developing microservices for working with geo-API (Yandex.API), for generating reports in various formats, for sending push notifications to a mobile application via Firebase and APNS. ● Writing complex SQL queries and scripts, optimizing and refining them - PostgeSQL and Oracle.● Fixing various errors and developing a monolithic high-load management system for critical corporate business processes. ● Refinement and support of a pluggable application, which is part of the microservice backend of a mobile application for servicing and configuring POS terminals. ● Development of a microservice for working with the online banking system of the TranzWare Online functionality. ● Development of microservices for working with geo-API (Yandex.API), for building reports in various formats, for sending push notifications to a mobile application via Firebase and APNS. ● Writing complex SQL queries and scripts, their optimization and refinement - PostgeSQL and Oracle.