Senior Java Developer

Quick Facts

• Title: Senior Java Developer

• Location: Warsaw

• Work model: 1 day per week from the office

• Rate: 160 PLN/h net + VAT (B2B)

Description

You will develop and optimize Java applications using modern technologies. The role involves designing and implementing microservices, improving application security, building unit and integration tests, and collaborating on API development. You will also optimize SQL database queries, troubleshoot issues using logs, and integrate with external systems.

Responsibilities

• Develop Java-based applications

• Create and optimize database queries

• Design and implement microservices

• Implement application security measures

• Participate in code reviews

• Create and run unit and integration tests

• Collaborate with the team on API development

• Analyze logs and diagnose errors

• Integrate with external systems

Requirements

• 5+ years of experience as a Java developer

• Very good knowledge of Java 17/21

• Strong knowledge of OOP

• Experience with Spring Boot, Spring MVC, Spring Data JPA, and Spring Security

• SQL database experience: Oracle, PostgreSQL, or MS SQL Server

• Knowledge of REST APIs and OpenAPI/Swagger

• Experience with developer tools: Git, Maven or Gradle, Jenkins, GitLab CI/CD

• Basic knowledge of microservices architecture

• Ability to write unit tests using JUnit and Mockito

Benefits

Senior-level role with modern Java and microservices work.