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November 4, 2026
Senior Java Software Engineer
Senior • On-site
Warsaw, Poland
Quick Facts
Role: Senior Java Software Engineer
Description
Join a technology team to design, develop, and maintain Cloud Native Java applications. You’ll build and maintain REST APIs, optimize code performance and quality, and deliver features in an Agile/Scrum environment with unit and integration testing. The role also includes asynchronous integrations and building microservices.
Responsibilities
Design, develop, and maintain Java applications in a Cloud Native architecture
Create and maintain REST APIs
Collaborate with the team in Agile/Scrum methodologies
Write unit and integration tests
Optimize code performance and ensure high code quality
Solve technical problems and implement new functionality
Requirements
Minimum 4/5 years of commercial programming experience
Java 8+ knowledge
Strong knowledge of Spring (Spring Boot, Spring Data, Spring Security)
Knowledge of SQL (e.g., PostgreSQL, Oracle) and NoSQL (e.g., MongoDB)
Experience with asynchronous integrations using queues (e.g., Kafka, Oracle AQ)
Experience with version control systems (Git)
Knowledge of Docker and Kubernetes
Knowledge of unit testing principles (JUnit, Mockito)
Experience building microservices
Teamwork and communication skills
English proficiency for comfortable communication (minimum B2)
Benefits
Hybrid work model (2 days in the office)
Employment contract based on an employment agreement
Opportunity for growth within internal organizational structures
Convenient office location near Młociny metro station
Access to non-salary benefits on preferential terms
Employee discount for part of the Inter Cars Group
Development trainings (soft and technical skills)
Funding for language lessons
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