Senior Java Developer
On site
Brussels, Belgium
Full Time
27-03-2025
Job Specifications
Are you a seasoned Java Back-End Engineer looking for an exciting new opportunity? Our client, a leader in the aviation and transportation industry, is seeking a skilled professional to design and build modern, event-driven, API-based backend services. You'll work as part of an innovative DevOps team, collaborating with experts across development and operations to deliver cutting-edge solutions. This role offers a hybrid work environment, allowing for 40% remote work, with offices based in Belgium.
Your Role & Responsibilities
Develop & maintain scalable Microservices and backend applications using Java 17+, adhering to DDD principles.
Design & implement event-driven architectures, ensuring high performance and reliability.
Collaborate with front-end developers, domain experts, and IT teams to analyze functional and technical requirements.
Contribute to cloud-native development, leveraging Kubernetes/OpenShift and GitOps best practices.
Drive REST API development, including OpenAPI Specification (OAS) design and implementation.
Engage with the wider IT community to share domain and technology insights.
What We're Looking For
Expertise in Java 17+ with a strong grasp of Spring Boot & Java EE.
Proficiency in Object-Oriented Design, event-driven systems, and Microservices architecture.
Deep understanding of Domain-Driven Design (DDD), including Bounded Contexts, Aggregates, Event Sourcing, CQRS, and Sagas.
Hands-on experience with Kafka, Test-Driven Development (TDD), JSON, Avro, and SQL databases.
Solid knowledge of Persistence APIs (Hibernate, JPA) and integration technologies (JMS, Camel, etc.).
Familiarity with OWASP TOP 10 security practices and secure coding principles.
Experience in DevOps environments, using CI/CD pipelines, Git, Maven, Tekton, and ArgoCD.
Exposure to Atlassian tools (JIRA, Confluence, BitBucket) and a collaborative mindset for multi-cultural, cross-functional teamwork.
Bonus Skills That Make You Stand Out
Experience with authentication & authorization protocols (SAML, OpenID Connect).
Advanced cloud-native development skills, including ArgoCD, secret management, and distributed tracing (OpenTelemetry).
Hands-on expertise with Kafka Connect, Kafka Streams, KSQLDB, and Spring Cloud.
Knowledge of alternative persistence solutions, document generation tools (Jasper Reports, iText), and event stores.
Familiarity with Dynatrace for performance monitoring and ELK/EFK for log management.
Languages
English fluency required (Dutch is a plus).
About the Company
In4Matic is an IT-consulting company with two decades of experience that delivers IT services to several business sectors. By offering specialized IT consultants, In4Matic helps its clients reach their goals. In order to deliver the best quality, we choose to listen very carefully to our clients and co-workers. A good relationship with the client is an inviting added value to the completion of the client’s projects. Every client deserves a personal approach to fulfil their needs. In4Matic aims to deliver top quality work w... Know more
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