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Requirements
Strong experience with Spring Core, MVC, Security, and Boot (3+ years).
Hands-on experience with Spring Data and Hibernate (3+ years).
Solid understanding of microservices architecture.
Familiarity with Event Sourcing, CQRS, and Domain-Driven Design (DDD).
Strong understanding and practical application of SOLID principles and design patterns.
Proven experience in developing RESTful services (3+ years).
Practical experience working with messaging systems such as ActiveMQ or JMS.
Excellent knowledge of relational databases (MySQL, PostgreSQL, Oracle).
Experience with non-relational databases (e.g., Cassandra).
Proficiency with Git and branch-based workflows.
Experience in setting up and maintaining Docker containers in production environments.
Understanding of continuous integration principles and tools.
Experience with unit testing frameworks such as JUnit and Mockito.
Responsibilities
Develop and maintain the back-end systems using Java programming language to ensure seamless functionality of Kyivstar's digital services.
Collaborate with front-end developers and other team members to integrate backend solutions effectively into larger projects.
Implement security measures within code, following best practices for data protection in line with Kyivstar’s privacy policies.
Monitor system performance using tools like JConsole or VisualVM; troubleshoot issues that may arise during operation of the back-end systems to maintain uptime and reliability.
Write unit tests and integration tests, ensuring code quality and functionality before deployment into production environments.
Stay updated with latest Java frameworks (e.g., Spring Boot) for efficient backend development practices; apply these in projects as needed.
Document system architecture and technical specifications to facilitate future maintenance or updates by other team members.
Benefits
Office or remote — it’s up to you. You can work from anywhere, and we will arrange your workplace