- Development of a server part of a microservices-based platform. - Working in a team of 5 developers, 2 QA automation, 1 UI/UX designer, 1 TPM- Refactoring existing services from reactive to servlet solution.- Migrated all servers from CentOS to Rocky Linux- Migrated configuration to consul- Fixed and adjusted Jenkins pipelines for apps- Participated in creation of new infrastructure using AWS cdk and terraform- Adjusting on-prem infrastructure. Fixing security issues.- Design, implementation, and testing new features and enhancements in accordance with project requirements and user stories.Stack: Java 17, Spring Boot, Spring Cloud, Spring WebFlux, Spring Data, Hibernate, Docker, Jenkins, AWS, K8s, ArgoCD, Oracle, MongoDB, Testcontainers, Maven, Github, Vault

- Development of a server part of a microservices-based platform. This platform is an aggregator for working with APIs of various telecom providers - Communication with 3rd part vendor to clarify API details.- Created asynchronous service to communicate with one of providers- Created distributed cache to search phone numbers. Redis at first then separate in-memory service using Caffeine- Design, implementation, and testing new features and enhancements in accordance with project requirements and user stories.- Code reviews and feedback to team members, to improve code quality.- Development of unit tests and integration tests to validate software functionality and ensure a robust and stable codebase.- Decomposition of any feature request onto specific estimate-able tasks.Stack: Java 11-17, Spring Boot, Spring Cloud, Spring Data, Hibernate, Apache Camel, AWS (SQS, SNS, ECS, EC2, S3, etc.), Terraform, Docker, Jenkins, MySQL, Redis, React, Gradle, Github, Vault, Consul

- Development of software applications using Java.- Database design and implementation, including schema development, query optimization, and data migration tasks.- Development of unit tests and integration tests to validate software functionality and ensure a robust and stable codebase.Stack: Java 11, Multithreading, Servlets, JSP, Maven, MySql, Lombok, JUnit.