JAVA Developer

Senior Java Developer - Microservices Migration

Location : Bucharest, Romania (Hybrid)

Start Date : ASAP

Contract Duration : Long-term

Working Language : English

Role Overview

We are seeking a skilled Senior Java Developer to join a strategic migration initiative focused on refactoring legacy systems into cloud-native microservices. You will play a critical role in developing and testing new software components, ensuring adherence to coding standards, and driving innovation through modern architectural practices.

Key Responsibilities

Migrate and refactor legacy services and applications into microservices on the cloud

Develop and unit test Java-based software components using Java 17+ and Spring Boot 3+

Ensure code quality by applying SonarQube standards and resolving security vulnerabilities with IQ Nexus

Participate in debugging, technical issue resolution, and root cause analysis

Contribute to peer reviews , engineering reviews , and collaborative development practices

Support higher-level testing activities including integration, verification, and validation when required

Required Skills & Experience

Strong experience with :

Java 17+

Spring Boot 3+

REST & SOAP APIs

Database and SQL

Good understanding and hands-on experience with :

Apache Kafka

ELK stack (Elasticsearch, Logstash, Kibana)

DDD (Domain-Driven Design) and CQRS patterns

Proficiency in software engineering principles :

Object-oriented programming

SOLID principles , design patterns

Unit testing , mocking frameworks

CI / CD pipelines

Git version control

Agile methodology

Familiarity with Clean Code principles and static code analysis using SonarQube

Nice-to-Have

Experience with Docker and Kubernetes for containerized deployments

If you're passionate about transforming legacy systems into cutting-edge cloud-based microservices and enjoy working in an autonomous and collaborative environment, we would love to hear from you.