Back End Developer

Position Title: Back-end engineer

Location: Diegem, Belgium

Duration: 8 months

Languages: Dutch and English

Work mode: Hybrid (2/5)

Job Description:

• Design & build event-driven and api-based backend services in Java using a current technology stack and adhering to DDD principles.
• Work in a team with other back-end developers, frontend-developers and domain experts. We allow you to work at home for 40% a week. Our offices are located in Diegem.
• Analyze functional and technical requirements. Contribute, communicate and manage domain/technology-related information within Global Aviation IT and the Wider DPDHL IT Community.
• Excellent knowledge of Java 17 and subsequent releases (in general, we follow the LTS release of Java if technically possible).
• Excellent knowledge of Spring Boot & Java EE
• Excellent knowledge of Object Oriented design & development
• Excellent knowledge of event driven design and implementations.
• Excellent knowledge of Persistence API / Hibernate.
• Excellent knowledge on Cloud Native application development
• Kubernetes/OpenShift
• GitOps
• Good knowledge of Micro Services
• Excellent knowledge of REST API design & development. Having designed & implemented OAS contracts.
• Good knowledge of Ports & Adapters pattern / hexagonal architecture
• Good understanding of Domain Driven Design
• Ubiquitous language, Bounded Contexts, Context Maps
• Domain Model, Aggregates, Entities, Value Objects, Commands, Event Driven Architecture & Event Sourcing, CQRS, Sagas
• Good knowledge and practical experience with Kafka.
• Good knowledge of Test driven development
• Good knowledge of JSON and Avro
• Good knowledge of database techologies.
• Good knowledge of Plain JDBC & SQL
• Good knowledge of Integration Technologies (JMS, Camel, ...)
• Good understanding of OWASP TOP 10 and secure code implementation.
• Having knowledge of DevOps teams employing CI/CD pipelines. (GIT, Maven, Tekton, ArgoCd).
• Having worked with Atlassian Tools (JIRA, Confluence, BitBucket).
• Inquisitive and analytical mind.
• Proven ability to work in a multi-cultural multi-functional environment where consensus is critical for success.
• Customer and end-user focused.
• Excellent oral and written communications skills.
• Conceptual thinking: Understands the underlying issues in most situations and relates some similarities between situations that are not obviously connected through the use of concepts, models or previous experiences.
• Seeking Information: Frequently identifies information gaps that are not immediately apparent and selects appropriate sources of information.
• Forming Relationships: Develops good working relationships with internal contacts in immediate organization.
• Teamwork: Contributes actively, both in practical terms and by promoting shared values and mutual respect, to the achievement of goals by teams which sometimes include people with varying types & levels of skills.
• Is able to both work independent and in team context.

What are great skills to have

• Having worked with authentication/authorization protocols SAML, OpenID Connect
• More advanced experience with Cloud native
• ArgoCd
• Secret management (1Password Secret Automation)
• Distributed tracing (Opentelemetry)
• Experience with Kafka Connect, Kafka Streams and KSQLDB.
• Knowledge of Spring Cloud
• Good knowledge of different persistence solutions
• Good knowledge of document generation (Jasper Reports, iText).
• Having worked with Dynatrace to monitor application performance & remedy application issues
• Having worked with ELK/EFK
• Having worked with event stores