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November 4, 2026
Java Developer (Spring/Kafka)
Mid • On-site
Warsaw, Poland
Quick Facts
Role: Java Developer
Description
Design and implement IT solutions based on user requirements and architectural standards. Take responsibility for the assigned systems and applications, including controlling modifications and ensuring consistency with the overall architecture. You will also analyze technical architecture, develop and test software, monitor systems, automate infrastructure delivery, and ensure security, reliability, and proper documentation.
Responsibilities
Design IT solutions according to user requirements and architecture standards
Own and maintain systems/applications, ensuring modification control and architectural consistency
Analyze and provide technical consultation for new/modified systems; oversee design work
Develop and test software components; maintain quality per applicable standards
Support troubleshooting, analyze system behavior, and recommend improvements
Prepare system documentation (including incident handling and recovery) and user documentation
Maintain and monitor systems: manage logs, track metrics, diagnose issues
Ensure application and infrastructure security and compliance
Monitor performance and availability; ensure reliability
Create and maintain data backups; restore systems after failures
Build scripts/tools to automate configuration, deployment, and infrastructure management
Requirements
Solid experience with the Spring ecosystem (Spring Boot, Spring Data, Spring Cloud)
Experience with integrations and operations involving Apache Kafka
Database experience across document (MongoDB) and relational (Oracle, MS SQL, PostgreSQL)
Knowledge of BPMN or Camunda
Proficiency with Git and CI/CD principles
Experience with containerization/orchestration (Docker, Kubernetes, OpenShift)
Knowledge of Hibernate, Flyway/Liquibase, and SOAP/REST
Knowledge of Gradle and Maven
Ability to work in Unix/Linux environments
Benefits
Hybrid work model
Access to a training platform
Benefit package: Multisport card, LuxMed medical care, life insurance
Funding for activities organized by sports and thematic groups
Responsible role with friendly work environment and knowledge sharing
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