Java Developer

Quick Facts

• Role: Java backend developer

Description

You will develop and support backend services for a high-availability telecom platform, building microservices that can handle high traffic reliably. Responsibilities include designing microservice architecture, implementing asynchronous communication with Kafka or RabbitMQ, optimizing performance and scalability, working with SQL databases (PostgreSQL, Oracle), and maintaining production services with monitoring.

Responsibilities

• Develop backend services in Java and Spring Boot
• Design microservice architecture
• Implement asynchronous communication (Kafka/RabbitMQ)
• Optimize performance and scalability of services
• Work with SQL databases (PostgreSQL, Oracle)
• Write automated tests and perform code reviews
• Maintain and monitor services in production

Requirements

• Minimum 3 years of commercial experience in Java 17+
• Very good knowledge of Spring Boot, Spring Data, and REST API design
• Experience with microservices
• Practical experience with asynchronous communication (Kafka or RabbitMQ)
• Strong SQL knowledge and relational databases (PostgreSQL, Oracle)
• Ability to write unit and integration tests (JUnit, Mockito)
• Knowledge of Git and CI/CD tools
• Focus on code quality and openness to code review

Benefits

• Real impact on global projects
• Hybrid work model: 1 day per week in the Warsaw office
• Training budget and clear career progression path
• Private medical care and sports card