Senior Java Software Engineer (Core API Unit)
$77,760–$90,720 year
Hybrid · Vilnius, Vilnius, Lithuania
Job Summary
Senior Java Software Engineer in the Core API Unit focusing on designing and building robust, scalable systems using Java 21, Spring Boot, and Kafka. Own end-to-end solutions from design to production, develop event-driven architectures, and ensure high standards of quality, security, availability, and performance. Key responsibilities include building and evolving distributed systems, driving architecture discussions, delivering proofs of concepts, collaborating with engineers and stakeholders, troubleshooting production issues, and contributing to architectural decisions. Required skills include hands-on Java/Spring Boot, Kafka or similar event-driven tech, AWS and container orchestration (Kubernetes/Docker), CI/CD (Argo CD), modern microservices/API design, SQL (with NoSQL as a plus), and fluent English. The role offers hybrid work with flexibility to work from the Baltics and surrounding regions, and is based in Vilnius, Lithuania, within an international, Pan-Baltic team environment.
Required Qualifications
- Java 21
- Spring Boot
- Kafka or equivalent
- AWS
- Kubernetes or Docker
- CI/CD pipelines (Argo CD)
- Microservices architecture
- API design
- SQL databases; NoSQL a plus
- Strong ownership mindset
- English fluency (spoken and written)
- Experience with event-driven/distributed systems
- Production troubleshooting and reliability improvements
- Cross-functional collaboration in Agile environments
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