Ilya Chernikov Email & Phone Number

Serbia

Responsibilities• Participated in development of CORE functionality of important permission service with high performance, availability, resiliency requirements• Created datasource router to separate read-only transactions (execute them on read-only replicas) and write transactions for load distribution• Implemented complex solution to store, manage and retry error messages using PostgreSQL and Spring Integration• Implemented multiple Kafka consumers using DLQ and retry… Show more Responsibilities• Participated in development of CORE functionality of important permission service with high performance, availability, resiliency requirements• Created datasource router to separate read-only transactions (execute them on read-only replicas) and write transactions for load distribution• Implemented complex solution to store, manage and retry error messages using PostgreSQL and Spring Integration• Implemented multiple Kafka consumers using DLQ and retry patterns• Set up CI / CD process using Gitlab CI + Openshift• Participated in writing of data quality tests and analysed their results• Ran and analysed performance tests to find bottlenecksTechnologies• Java 17, Spring Framework (Boot, MVC, Core, Security, Integration)• JDBC, Liquibase, Postgresql (including partitions, extensions like ltree and intarray)• gRPC, REST, Kafka• Maven, Junit 5, Test Containers Show less

Voronezh, Russia

Responsibilities• Participated in development of multiple microservices using Java 8• Performed authorization between frontend and several backend microservices using Single Sign-On methodology• Developed template processor using apache-freemarker library• Created database migration service using liquibase• Implemented analogue of spring data redis for using with custom redis clusterTechnologies• Java 8, Spring Framework• PostgreSQL, Liquibase, Redis•… Show more Responsibilities• Participated in development of multiple microservices using Java 8• Performed authorization between frontend and several backend microservices using Single Sign-On methodology• Developed template processor using apache-freemarker library• Created database migration service using liquibase• Implemented analogue of spring data redis for using with custom redis clusterTechnologies• Java 8, Spring Framework• PostgreSQL, Liquibase, Redis• REST, Kafka, TIBCO EMS• Maven, Junit 4 Show less

Voronezh, Russia

Responsibilities• Participated in development of RESTful monolithic service using Java 8 on backend and React, Redux, TypeScript on frontend• Set up CI / CD process using TeamCity• Created database migration service using Liquibase• Organized sprint planning, task prioritizing, estimation and deliveryTechnologies• Java 8, Spring Framework• PostgreSQL, Hibernate ORM, Liquibase• React, Redux, Typescript• Maven, Junit 4

Voronezh, Russia

Responsibilities• Participated in development of CRM services for telecom company• Improved performance of statistic service by replication from Oracle DB to ClickHouse• Increased selenium and unit tests coverageTechnologies• Java 8, Spring Framework• Oracle DB, Redis, ClickHouse• React, Redux, Typescript, JSP• Maven, Junit 4, Selenium