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