Full Stack Developer (Java)

Quick Facts

• Role: Full Stack Developer (Java)

• Work mode: Hybrid

• Location: Kraków

• Focus: Backend in Java/Spring Boot with frontend collaboration

Description

You will design, develop, and maintain backend applications using Java and Spring Boot, building REST APIs and integrations between systems. You’ll also help implement end-to-end features across backend and frontend and collaborate with data, product, and system architecture teams. The role includes performance troubleshooting, ensuring code quality, and contributing to an international data-platform program.

Responsibilities

• Design, develop, and maintain Java/Spring Boot backend applications

• Build and evolve APIs and system-to-system integrations

• Collaborate with teams responsible for data, products, and system architecture

• Implement end-to-end functionality across backend and frontend layers

• Troubleshoot performance, integration issues, and production environment problems

• Maintain code quality with testing and engineering best practices

Requirements

• Commercial experience in Java development

• Very good knowledge of Spring Boot and backend application development

• Experience with REST API development and system integrations

• Knowledge of relational databases, especially PostgreSQL

• Frontend technology knowledge: TypeScript and React or Next.js

• Communicative English

Benefits

• Opportunity to work on a modern, globally developed data platform

• Collaboration with international technology teams

• Hybrid work model in Kraków

• Luxmed and Multisport