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August 8, 2026

Senior Java Developer

Senior • Hybrid

130 - 160 PLN/yr

Warsaw, Poland

Senior Java Developer

We are looking for a Senior Java Developer (7+ years of experience) to lead the development of resilient, highly available systems and event-driven microservices in a high-stakes financial environment.

Requirements:

  • Experience: 7+ years of commercial backend development with a proven track record of building complex, distributed, and scalable systems.

  • Tech Stack:

    • Backend: Java 21+, Spring Boot, PostgreSQL, Kafka, OpenAPI, Vault

    • DevOps & Cloud: Kubernetes , Docker, Terraform, GitLab CI/Jenkins, Maven

  • Core Skills: Microservices architecture, event-driven design, RESTful APIs, SCRUM, strong collaboration skills, and fluent English.

  • Nice to Have: Financial services/FinTech background, experience in distributed global teams, and exposure to AI/LLM integrations.

Responsibilities:

  • Architecture & Infrastructure: Lead the development of scalable, event-driven microservices engineered for high throughput and maximum uptime.

  • Data & Security: Design robust data models while ensuring strict data consistency and security in a financial ecosystem.

  • End-to-End Feature Ownership: Own complex backend features across their full lifecycle—from schema and API definition to deployment and production monitoring.

  • Cross-Functional Collaboration: Partner with global stakeholders and frontend engineers to translate complex financial workflows into high-performance technical specs.

  • Engineering Excellence: Elevate code quality through code reviews, modern CI/CD automation, and comprehensive testing (Unit, Integration, and Contract testing).

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