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May 18, 2026

Java Developer

Mid • Remote

95 - 110 PLN

Warsaw, Poland

Who are we?

Lumicode Sp. z o.o. is part of the Pentacomp Group — a producer of IT solutions and provider of professional IT services for large enterprises and the public sector. For nearly 30 years, we have delivered technology projects that combine experience, a modern approach, and high-quality solutions.

We are currently looking for a Java Developer.

  • Remote work

  • Long-term cooperation

  • Access to a sports card and private medical care

About the project

The project is delivered for the public sector and involves the development and maintenance of systems responsible for processing financial and accounting data.

We are looking for a person with experience in building enterprise systems based on Java and Oracle technologies, as well as participation in projects related to generating accounting entries, including the implementation of the double-entry bookkeeping method.

The role includes both developing new functionalities and maintaining and optimizing existing system components.

Your main responsibilities

  • Development and maintenance of applications based on Java and Oracle

  • Implementation of new business functionalities

  • Introducing changes and modifications to the existing system

  • Analysis and fixing of application errors

  • Working with Hibernate and JPA frameworks

  • Creating and developing REST API integrations

  • Cooperation with the analytical and testing teams

  • Participation in CI/CD processes and deployments

  • Working according to code quality and testing best practices

Required skills

  • Minimum 2 years of commercial experience working with Java

  • Experience working with JPA and Hibernate

  • Practical knowledge of Spring Boot and Maven

  • Experience working with Oracle databases

  • Knowledge of database migration tools, e.g. Flyway

  • Experience writing unit and integration tests (JUnit 5, Spock, TestContainers)

  • Knowledge of CI/CD tools and processes (Jira, Bamboo, Bitbucket, Docker)

  • Familiarity with Swagger / OpenAPI

  • Attention to code quality and software development best practices

Nice to have

  • Knowledge of Angular

  • Experience in the development or maintenance of financial and accounting systems

  • Knowledge of accounting entries and financial business logic principles