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September 1, 2026
Mid-Level Java Developer – Cloud-Native and Microservices
Mid • On-site
198,030 - 237,510 PLN/yr
Warsaw, MZ, Poland
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Description
As a Senior Java Developer, you will contribute to building a modern, cloud-native environment for securities settlements and post-trade processing systems. You will use advanced technologies and AI-assisted development tools to support innovation in financial services and operational excellence.
Your main responsibilities
- Design, develop, and maintain Java-based microservices using Spring Boot.
- Work with event-driven architectures using Kafka to enable scalable, real-time data processing.
- Deploy and manage applications on Kubernetes, using Argo CD for continuous delivery.
- Participate in CI/CD pipeline management with GitLab to streamline development workflows.
- Monitor and observe system performance using Prometheus, Grafana, and Elastic Stack.
- Collaborate in an agile, cross-functional team to deliver high-impact solutions.
- Use AI tools, including GitHub Copilot, Devin, and Claude, to improve productivity and code quality.
- Contribute to the evolution of security and post-trade processing infrastructure.
Requirements
- Minimum 3 years of Java development experience.
- Proficiency in Java and Spring Boot.
- Experience with SDLC tools such as GitLab.
- Solid understanding of containerization and orchestration with Docker and Kubernetes.
- Hands-on experience with Kafka or similar messaging systems.
- Strong problem-solving skills and attention to detail.
- Excellent communication and interpersonal skills.
- Bachelor’s degree in Computer Science, Engineering, or a related field.
- Communicative English.
- Existing legal right to work in the European Union.
Preferred qualifications
- Knowledge of cloud platforms such as AWS.
- Experience with securities settlements and post-trade processing systems.
- Familiarity with Argo CD, Prometheus, Grafana, or Elastic Stack.
- Experience with AI development tools such as Devin, Claude, or GitHub Copilot.
Please apply with your CV, preferably in English, and a statement confirming consent to the processing and storage of your personal data.
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