Java Software EngineerMay 2023 — Jul 2024

System of payment and management services for public transportation and cashless operations

• Participation in project discussions, code review, planning and analyzing

• Researches for suitable technical solutions with further implementation

• Orchestration and deployment different services using Docker, Kubernetess and remote AWS-servers

• Implementation of efficient strategies to update huge volume of data in PostgreSQL• CI/CD with GitLab

• Numerous third-party API integrations

• Development of services that providing functionality for managing public transportation and payment related operations

Tech stack: Spring Boot, Apache Kafka, Rabbit MQ, Netflix Eureka, Spring Cloud, Hibernate ORM, JdbcTemplate, PostgreSQL, Redis, ELK, Docker, Java 17, Gradle, Kubernetess, Apache Camel, Apache Camel Karavan, AWS, GitLab, Jenkins, Flyway

Junior Java DeveloperOctober 2021 — May 2023

CRM-system for call-centers based in 6 different countries in Asia and America

• Improvement of a custom project logging system

• Development new features for call-center functionality expansion

• Refactoring of existing code

• Implementation of Elasticsearch for internal high loaded logging storage using Spring Data

• Communication with end user in order to obtain details for required functionality to be implemented

• Numerous third-party API integrations with post, tracking, message, communication services

• Improvement of performance of service-database interactions(optimizing SQL-queries, restructuring models, etc)

• Architecture migration from singleton to microservice type

• Dependency versions update, using Docker and Apache Kafka

• Migration from older 8th to newer 17th version of JDK

Tech stack: Spring 5 to Spring 6, Java 8 to Java 17, JdbcTemplate, PostgreSQL, Elasticserach, Spring Data, ELK, Apache Kafka, Docker, Maven, Flyway