● Development and improving backend of Online Banking application. ● Implemented automatic push notification mechanism.

● Developed a robust reference information management system, focusing on the manual information maintenance module for bank users. ● Utilized Java, Kotlin, Vert.x, and Spring-Boot to build the backend infrastructure, implementing REST API endpoints. ● Employed the Vert.x Reactive approach and Kotlin coroutines to enhance system performance and responsiveness. ● Implemented user access control functionality using Spring-Boot. ● Successfully led the migration process from SAS MDM and Oracle products to Kotlin and Java, ensuring smooth transitions and minimal disruptions. ● Designed and implemented asynchronous processes to handle batch changes effectively. ● Developed features for data importation and exportation from/to files of various formats. ● Developed a reporting system based on JasperReports. ● Leveraged Hazelcast to optimize application performance through clustering and distributed caching. ● Implemented metric collection and visualization using Grafana, as well as log collection using Grafana Loki. ● Resolved frontend issues by fixing bugs and developing tasks in TypeScript, Angular, DevExtreme, and RxJs. ● Actively participated in CI/CD processes using Jenkins, Ansible, Docker, and Docker Swarm, successfully implementing zero-downtime deployment strategies. ● Prepared pod configurations for deployment in Kubernetes. ● Mentored and monitored the work of fellow developers, providing guidance and support. ● Continuously studied and suggested the adoption of new technologies to enhance the project's capabilities.

● Participation in the development of a BI system for analyzing bank statements (creating a model and reports in Cognos BI). ● Development of an operating system for receiving and controlling bank reports (development of server logic in Oracle DBMS, ETL processes using PL/SQL).

● Development of a system in terms of automating the accounting of transactions with securities, operations in the futures market, depository operations. ● Successful system integration with other systems. Construction of bank reporting system. ● Technical tasks creation for other developers. ● Carried out the above works both in the company office and on the customer's side. Building a warehouse for an insurance company. ● Implementation of ETL procedures for loading data from the operating system into storage.

● Worked on a product for automating the back office of the bank's treasury. ● Bug fixing, improvement of existing functionality, report development, implementation of the functionality that unloads the credit history.