Senior Java Developer with Oracle Service Bus (OSB)

Our Client is an international organization from the insurance sector, delivering large-scale and complex IT projects with high quality standards.The project focuses on the development and maintenance of key business and integration systems supporting insurance processes and inter-system communication.

We are looking for an experienced Senior Java Developer who wants to work on a stable, long-term project and have a real impact on architecture and technical standards.

📍 WORK MODE: Remote – 1 day per month onsite in Warsaw

🧑‍💻 YOUR RESPONSIBILITIES

• Developing and maintaining software for insurance systems, with a strong focus on business needs, reliability, and code quality

• Designing and developing system integrations using Oracle Service Bus (OSB)

• Participating in the development of integration architecture and inter-system communication based on SOA and EDA (Event-Driven Architecture)

• Ensuring best software engineering practices: Clean Code, code reviews, automated testing

• Close collaboration with backend, frontend, integration, and architecture teams in an Agile (Scrum) environment

• Creating and maintaining technical and business documentation

🔍 WHAT WE EXPECT FROM YOU

Must-have:

• Minimum 5 years of experience in Java development (8/11/17/21)

• At least 3 years of experience with Spring / Spring Boot

• Hands-on experience in designing and maintaining integrations using Oracle Service Bus (OSB)

• Knowledge of architectural concepts: DDD, CQRS, Hexagonal Architecture, EDA

• Experience with microservices and basic knowledge of Kubernetes (K8s)

• Knowledge of GIT and relational databases (Oracle or PostgreSQL)

• Experience in writing automated tests (JUnit, Spock, Groovy, Testcontainers)

• Teamwork skills and experience working in Agile (Scrum)

Nice-to-have:

• Knowledge of messaging systems (Kafka, RabbitMQ, ActiveMQ)

• Experience with monitoring tools (Dynatrace, Splunk)

• Knowledge of NoSQL databases (MongoDB, Infinispan)

• Experience with Rancher

• Experience working with SOA architecture and ESB-class integration systems

🤝 WHY JOIN?

• Real influence on architecture and technical decisions

• Stable, long-term project in the insurance sector

• Mature work environment, clear processes, and a partner-based collaboration model

• Short and transparent recruitment process: 2 stages (technical interview + hiring manager)

Thank you for all applications! We will contact selected candidates.

TQLO Sp. z o.o. – Employment Agency, KRAZ No. 33580