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November 3, 2026

Senior Java Backend Developer

Senior • On-site

Kraków, Poland

Quick Facts

  • Role: Senior Java Backend Developer

  • Location: Kraków, Poland (Hybrid: 3 days/week in office)

Description

Join an enterprise technology team building scalable backend solutions. You’ll design and develop REST APIs and microservices using Core Java and Spring Boot, working with PostgreSQL/Oracle databases and deploying containerized services with Docker and Kubernetes on Azure in Unix/Linux environments.

Responsibilities

  • Design, develop, and maintain backend applications with Core Java and Spring Boot

  • Build and enhance REST APIs and microservices

  • Work with relational databases including PostgreSQL and Oracle

  • Develop and deploy containerized applications using Docker and Kubernetes

  • Work with Azure cloud services and Unix-based environments

  • Participate in technical design discussions and architectural decisions

  • Troubleshoot issues and ensure performance, stability, and maintainability

  • Collaborate with cross-functional teams in an Agile environment

  • Participate in code reviews and follow software development best practices

Requirements

  • 10+ years of professional software development experience

  • Strong knowledge of Core Java

  • Hands-on experience with Spring Boot

  • Solid experience developing microservices

  • Experience with relational databases, particularly PostgreSQL and/or Oracle

  • Experience with Docker and Kubernetes

  • Practical experience with Microsoft Azure

  • Experience working in Unix/Linux environments

  • Strong problem-solving and analytical skills

  • Good communication skills in English

Benefits

  • Hybrid work model (3 days/week in the office)

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