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December 17, 2025

Senior Java Developer

Senior • Hybrid

$155 - $165/hr

Gdańsk, Poland

Industry: Banking

Location: hybrid model 3x/week (Gdańsk/Gdynia)

Remuneration: up to 165 zl/h net+vat

Type of contract: B2B

Duration: Long-term


Introduction & Summary

We are seeking a Senior Java Developer with a profound understanding of developing microservices applications tailored to the counterparty credit risk business domain. The successful candidate will possess expertise in Java 11 or higher, Spring Boot, RESTful APIs, and Hibernate, among other essential technologies.


Main Responsibilities

The role involves crafting efficient microservices while ensuring code quality and performance standards are met.

  • Designing and developing microservice applications.

  • Collaborating with business analysts to gather requirements.

  • Implementing RESTful APIs and integrating external services.

  • Ensuring adherence to coding standards and best practices.

  • Participating in code reviews and guiding junior developers.

  • Conducting unit tests using JUnit.

  • Utilizing code quality tools, such as Sonarqube.


Key Requirements

  • Proficiency in Java 11 or higher.

  • Experience with Spring Boot framework.

  • Knowledge of RESTful API development.

  • Familiarity with Hibernate.

  • Experience using JUnit for testing.

  • Understanding of microservices architecture.

  • Acquainted with code quality tools (Sonarqube).


Nice to Have

  • Knowledge of credit risk domain.

  • Experience with PostgreSQL.

  • Familiarity with Oracle databases.

  • Understanding of Kafka.