Java Backend Engineer

Location & Working Model

Hybrid | 3 days onsite / 2 days remote in Warsaw

About the Team:

Join a global engineering organisation of approximately 75 professionals across 7 locations worldwide, including 21 colleagues across EMEA and 11 within WSW.

The team develops and supports modern backend services that underpin critical business functions. Engineering excellence, automation, cloud-native technologies, and effective collaboration across international teams are at the heart of the way we work.

The Role:

We are looking for an experienced Java Backend Engineer with a minimum of 3 years of commercial software engineering experience.

In this role, you will design, develop, and maintain scalable backend applications using Java and Spring Boot. You will work in a modern, agile engineering environment and contribute across the full software development lifecycle, collaborating with engineers across multiple regions.

The role offers the opportunity to work with a modern technology stack spanning event-driven architecture, Kubernetes, CI/CD, observability, and AI-assisted software development.

What Youll Do:

• Design, develop, and maintain scalable backend services using Java and Spring Boot.

• Build and support event-driven solutions using Kafka.

• Develop and deploy cloud-native applications on Kubernetes.

• Implement and maintain CI/CD pipelines with GitLab.

• Monitor and improve application performance using Prometheus, Grafana, and the Elastic Stack.

• Collaborate with distributed engineering teams throughout the software development lifecycle.

• Contribute to code quality, automation, engineering standards, and best practices.

• Leverage modern AI-assisted development tools to improve engineering productivity.

What Were Looking For:

Experience

• 3+ years of professional software engineering experience.

• Strong commercial experience in Java backend development.

• Experience working with modern SDLC practices and GitLab.

• Good understanding of containerisation and orchestration, particularly Docker and Kubernetes.

• Strong analytical and problem-solving capabilities.

• Experience working effectively in an international, distributed engineering environment.

Education

• Bachelors degree in Computer Science, Engineering, or a related discipline, or equivalent commercial experience.

Nice to Have:

Experience in any of the following would be advantageous:

• Securities settlements and post-trade processing within financial services.

• AWS.

• AI-assisted development tools beyond GitHub Copilot.

Why Join?

• Work as part of a globally distributed engineering organisation.

• Build and support modern, cloud-native backend solutions.

• Work with contemporary technologies including Kubernetes, GitLab CI/CD, Kafka, and modern observability tooling.

• Use AI-powered development assistants as part of the engineering workflow.

• Collaborate with experienced engineers across multiple international locations.

Technology Stack

Backend: Java, Spring Boot
Messaging: Kafka
Cloud & Platform: Kubernetes, Docker, AWS
GitOps / CI/CD: Argo CD, GitLab CI/CD, Git
Observability: Prometheus, Grafana, Elastic Stack
Development: IntelliJ IDEA / VS Code, GitHub Copilot
AI-assisted Development: GitHub Copilot, with additional tools such as Claude or Devin preferred