Senior Java Developer

26 days ago

Warsaw, PolandSenior

Responsibilities

Design, develop, and maintain backend services using Java and Spring Boot.
Ensure high availability, scalability, and performance of distributed systems.
Define technical requirements and deliver solutions end-to-end with cross-functional teams.
Implement integrations with internal and external systems.
Participate in architectural discussions and contribute to system evolution.
Monitor, troubleshoot, and optimize production services.
Maintain compliance with security, operational, and engineering standards.
Improve code quality, testing, and deployment practices.

5+ years of commercial experience with Java and Spring Boot.
Strong experience with MySQL and Kafka.
Proven experience with microservices architecture in high-traffic, high-load systems.
Experience developing high-performance backend solutions for transaction-heavy platforms.
Ability to own and deliver services end-to-end.
Excellent written and verbal English communication skills at C1 level.
Experience with Kotlin.

Hybrid work arrangement in Warsaw with 3 days per week in the office.
Opportunity to work on a large-scale platform serving millions of users.
Work with an international, multicultural engineering team across multiple countries.
Contribute to architectural decisions and mission-critical platform development.

1,001-5,000 employees