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# Java Developer Consultant

- **Company:** Keystone Solutions
- **Location:** Charleroi, Belgium
- **Contract:** Temporary contract
- **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Application Performance Management, Confluence, JIRA, Software Quality, Continuous Integration, Persistent Data Structure, Hibernate (Java), JavaServer Faces, Junit, PostgreSQL, Apache Maven, OpenShift, Oracle (Applications), Scrum Methodology, RabbitMQ, Prometheus, Selenium, SonarQube, Data Streaming, Extensible Markup Language (XML), Primefaces, Spring-boot, Backend, Gitlab, Vue.js, AngularJS, Integration Tests, Front End Software Development, Kibana, Restful APIs, Spring Batch, Jenkins
- **Published:** November 4, 2026
- **Apply:** https://www.adzuna.be/details/5952768824

## About the Role

* Angular - Level: Confirmed - Most recent: Any time
 * Hibernate - Level: Expert - Most recent: Any time
 * Java 21+ - Level: Expert - Most recent: Any time
 * Openshift - Level: Expert - Most recent: Any time
 * PrimeFaces - Level: Expert - Most recent: Any time
 * Scrum - Level: Confirmed - Most recent: Any time
 * Springboot - Level: Expert - Most recent: Any time

## Description

* Design and develop complex features using Java 21+ and Spring Boot.
 * Build modern and responsive interfaces using Angular while maintaining existing JSF assets.
 * Ensure software quality through unit/integration testing and peer code reviews.
 * Manage data persistence via Hibernate and optimize queries to ensure performance.
 * Participate in the design and exposure of secure and scalable REST APIs.
 * Engage in continuous integration and deployment within the OpenShift environment.
 * Collaborate closely with business analysts to translate legislative needs into elegant technical solutions.
 * Contribute to the automation of development processes using CI/CD tools (GitLab, Jenkins, Renovate).
 * Ensure code compliance through SonarQube.
 * Propose modernizations to the technical stack and optimize application performance.

Required Profile:

 * Technical Skills:
Backend: Java 21+, Spring/Spring Boot/Spring Batch, Hibernate, RabbitMq, Oracle/Postgres, XML, Junit/Selenium.
Frontend: Angular, Vue.js, JSF/Primefaces.
Environment: GitLab, Jenkins, OpenShift, JIRA/Confluence, Maven, SonarQube, Renovate, Kibana, Prometheus.
API: Real experience in consuming and creating REST services. Knowledge of networking and infrastructure is a plus.

 * Business Skills:
In-depth knowledge of family allocation funds (business processes, legislation, data flows) is a major asset for understanding the challenges of the Itinera application.

 * Soft Skills:
Autonomy: Ability to take ownership of a subject from start to finish.
Team Spirit: Enjoy sharing knowledge and learning from colleagues.
Precision: Place great importance on code cleanliness and documentation.

As a consultant at Keystone Solutions, you will experience dynamic projects across various client environments, turbo-charged learning opportunities, and a commitment to your career growth. Being a

If you are ready to tackle technical and strategic challenges in a dynamic consultancy environment, apply today at Keystone Solutions Career Portal.