Java Developer

Kempuri; Województwo pomorskie; Hybrid; PLN 120,000 - 180,000; Full time

Benefits offered by this job

Remote work flexibility

Professional development

Comprehensive benefits package

Job summary

Kempuri in Poland is seeking an experienced Java Developer to join a project focused on backend and integration solutions for a large-scale retail environment. You will develop and maintain backend systems handling vouchers, RFID integrations, and external service connections.

You will work with Java 25 and Spring Boot, design REST APIs, write tests, and contribute to CI/CD pipelines. The role offers remote work flexibility, opportunities to work with cutting-edge tech in ecommerce, and a strong

Qualifications

• Strong commercial experience with Java 25
• Very good knowledge of Spring Boot 3.x
• Experience with Spring Web, Spring Security, Spring Data JPA and Spring JDBC
• Experience with REST API development and external system integrations
• Knowledge of PostgreSQL and relational databases
• Experience with JUnit 5, Mockito, Spring Test and Testcontainers
• Experience with Docker
• Knowledge of CI/CD tools such as GitLab CI or Jenkins
• Experience with Git
• Understanding of resilient and fault-tolerant backend systems
• Good understanding of AI solutions and hands-on experience using AI-powered tools in daily software development

Responsibilities

• Develop and maintain backend applications using Java 25 and Spring Boot
• Design and implement REST APIs and integrations with external systems
• Develop reliable message processing and delivery mechanisms
• Work with relational databases and caching solutions
• Develop integrations with RFID systems and readers
• Write and maintain unit, integration and architecture tests
• Monitor applications and troubleshoot technical issues
• Participate in CI/CD and application deployment processes
• Perform code reviews and maintain high code quality standards
• Collaborate with the team on designing and implementing new features

Skills

Java

REST API design

Spring Boot

External system integrations

PostgreSQL

JUnit 5

Mockito

Testcontainers

Docker

GitLab CI/Jenkins

Git

AI tools in development

Tools

Spring Boot 3.x

Spring Web

Spring Security

Spring Data JPA

Spring JDBC

Job description

We are looking for an experienced Java Developer to join a project focused on developing backend and integration solutions for a large-scale retail environment. The systems support voucher and benefit processing, RFID integrations, communication with external services, and applications used in retail stores.

Requirements

• Strong commercial experience with Java 25
• Very good knowledge ofSpring Boot 3.x
• Experience with Spring Web, Spring Security, Spring Data JPA and Spring JDBC
• Experience with REST API development and external system integrations
• Knowledge of PostgreSQL and relational databases
• Experience with JUnit 5, Mockito, Spring Test and Testcontainers
• Experience with Docker
• Knowledge of CI/CD tools such as GitLab CI or Jenkins
• Experience with Git
• Understanding of resilient and fault-tolerant backend systems
• Good understanding of AI solutions and hands-on experience using AI-powered tools in daily software development

Responsibilities

• Develop and maintain backend applications usingJava 25 and Spring Boot
• Design and implement REST APIs and integrations with external systems
• Develop reliable message processing and delivery mechanisms
• Work with relational databases and caching solutions
• Develop integrations with RFID systems and readers
• Write and maintain unit, integration and architecture tests
• Monitor applications and troubleshoot technical issues
• Participate in CI/CD and application deployment processes
• Perform code reviews and maintain high code quality standards
• Collaborate with the team on designing and implementing new features

Our offer

• Competitive salary package commensurate with experience.
• Remote work flexibility to support work-life balance.
• Opportunity to work on innovative e-commerce solutions with modern technologies.
• Professional development and continuous learning opportunities.
• Comprehensive benefits package tailored to employee needs.