Senior Java Back-End Developer

• 3+ years of Java development experience in back-end systems
• 3+ years of Spring Boot experience building production services
• Microservices experience with Apache Kafka and distributed systems (resiliency, scalability)
• Oracle SQL expertise writing queries, stored procedures, views, and joins using Oracle SQL Developer
• Strong software testing experience with automated tests in Java
• Proven teamwork skills in Scrum/Agile delivery environments
• Upper-Intermediate English (B2) proficiency, both written and spoken

Nice to have:

• JUnit
• Mockito
• Unit testing
• Test automation approaches
• Microsoft Azure (Azure Web Apps, Azure Functions)

• Build robust and scalable core Java server systems that deliver real business value
• Design high-level technical architecture for epics and key initiatives
• Develop high-quality Java code with automated tests and lead by example
• Review design proposals and ensure delivered solutions meet quality expectations
• Conduct thorough code reviews and provide actionable feedback to peers
• Refactor existing codebases to improve maintainability, performance, and usability
• Collaborate as a permanent member of a Scrum team with stakeholders and delivery teams in Krakow and globally