I develop one of the back-end functionality of the largest Kadam advertising network for bidding on the RTB (Real-Time Bidding) system using the OpenRTB protocol. I'm developing back-end functionality for highload distributed systems (several hundred thousand rps). Management and responsibility for the operation of a network of a couple of dozen servers. The tasks of developing and releasing new functionality, optimizing performance (e.g. by Garbage Collection tuning) and ensuring system fault tolerance. Creation and provision of monitoring (Prometheus, Grafana, Sentry) and various profiling tools (JProfiler). Use of distributed message brokers, databases (MySQL, ClickHouse). Participation in creating a deployment process using GitLab CI/CD.

Back-end development of financial trading services for the banking platform, based on Spring technologies (core, Spring Boot, MVC, Security, Data, Hibernate) and microservice architecture. Full back-end stack - from controller to DB (mysql, postgres), creating unit and integration tests (JUnit, Mockito). In projects i was working for I`ve used Apache Kafka message broker. The BE technologies that we are also using in this project: Liquibase for DB migrations, Jacoco, SonarQube, Swagger and some more. Service oriented architecture (SOA) technologies (Spring Cloud). I work through VCS (Git, GitLab, GitHub), prefer Intelij Idea.

Design of hydraulic structures (HPP). Hydrotechnical calculations. Work with geographic information system, analysis and graphical visualization of spatial data, creation, management and analysis of databases.