Summary: Seeking a Senior Java Engineer to develop cutting-edge back-end web applications, architect solutions, enhance security and performance, and lead key projects. Highlights: 1. Develop cutting-edge applications and architect core business logic 2. Enhance security and performance of systems across multiple platforms 3. Lead projects from concept to completion and improve code quality Our client is a leading supplier of software products in the field of eCustoms internationally. The company supplies software products and IT services to European Union Institutions and Agencies, international organisations and national government administrations. The company employs over 1100 engineers, IT experts and consultants (around 3% PhD, 41% MSc and 54% BSc or equivalent). The group’s staff is multilingual and multinational with in\-depth experience in the delivery of services to the government sector worldwide. Currently we are looking for a **Senior Java Engineer** to join the team as a long\-term Contractor (B2B) / Freelancer. **Tasks** --------- * **Craft Cutting\-Edge Applications:** Develop powerful, efficient back\-end web applications that drive our business forward. * **Architect \& Build:** Design and implement core business logic, creating high\-performance servers and databases. * **Enhance Security \& Performance:** Ensure our systems are secure, reliable, and optimized across multiple platforms. * **API Development:** Design and develop APIs that enable seamless communication between systems. * **Collaborate on Scalable Solutions:** Work alongside other developers to create scalable software solutions. * **Lead Projects:** Take charge of key projects, guiding them from concept to completion. * **Maintain \& Improve Code Quality:** Keep our codebase organized and pristine while fixing bugs and enhancing functionality. * **Troubleshoot \& Optimize:** Analyze data, processes, and code to identify areas for improvement and troubleshoot issues. * **Write Documentation:** Contribute to creating clear technical documentation for current and future reference. **Requirements** ---------------- * A university degree in IT * **Expertise in IT:** min **9 years of professional experience** in development. * **Proven Back\-End Skills:** Mastery of back\-end languages and frameworks, including **Java 8\+**, **Spring**, **Spring Boot**, **Java EE**, and **Hibernate**. * **Database Proficiency:** Solid experience with **Oracle Service Bus**, **Oracle DB**, and RDBMS database technology. * **Integration Experience:** Deep understanding of **OpenID Connect**, **SSO**, and integration techniques. * **Cloud Enthusiast:** Hands\-on experience with **Amazon Web Services (AWS)** for cloud development. * **Message Queues \& APIs:** Expertise in **Kafka**, **ActiveMQ**, **JMS**, and working with **REST** \& **SOAP APIs**. * **Blockchain Knowledge:** Familiarity with **blockchain technologies** is a big plus! * **Identity \& Access Management:** Experience with tools like **Secunda** and **IOP IAM**. * **Domain Expertise:** Advanced knowledge of **Procurement** and **Grant Management** business domains. * **Server \& Web Configuration:** Strong understanding of **Oracle WebLogic Server**, **Apache**, **SSL/TLS**, and reverse proxy configuration. * **CI/CD \& DevOps:** Practical experience with **CI/CD pipelines** and tools like **Bamboo** and **Docker**. * **Version Control:** Knowledge of **Git** for code versioning. * **Bonus Skills:** Experience with **NoSQL databases**, **Angular**, **TypeScript**, and front\-end technologies is a plus. * **Language Proficiency:** Fluent in English, with proficiency in **French** being a great advantage. **Benefits** ------------ * Excellent remuneration * Fully remote * Long\-term possible