Java Developer Consultant

Keystone Solutions; Henegouwen; Hybrid; EUR 60,000 - 90,000; Full time

Job summary

Keystone Solutions is seeking a Java Developer for a consultancy mission at a client site in Belgium. You will contribute to evolving a family allocation management platform, from design to production, focusing on backend robustness and user experience fluidity.

The role involves developing features with Java 21+ and Spring Boot, building Angular frontends while maintaining JSF assets, and ensuring quality through tests and reviews. 12-month consultancy start.

Qualifications

• Expert knowledge of Java 21+ and Spring ecosystem.
• Experience with Angular frontends and JSF/PrimeFaces.
• Solid Hibernate, Oracle/Postgres, REST APIs experience.

Responsibilities

• Design and develop features using Java 21+ and Spring Boot.
• Build responsive UIs with Angular while maintaining JSF assets.
• Ensure quality via unit/integration tests and code reviews.
• Develop REST APIs and secure, scalable services.
• Integrate CI/CD with GitLab/Jenkins in OpenShift.
• Collaborate with business analysts to translate requirements.
• Optimize queries with Hibernate for performance.
• Propose modernizations to the tech stack.

Skills

Angular

Hibernate

Java 21+

OpenShift

PrimeFaces

Scrum

Springboot

Tools

GitLab

Jenkins

Renovate

Kibana

Prometheus

SonarQube

Maven

JIRA

Job description

Mission Overview:

Keystone Solutions is seeking a Java Developer for a consultancy mission at a client site. As part of the team, you will actively contribute to the evolution of a family allocation management platform. You will be involved in the entire application lifecycle, from technical design to production deployment, with a particular focus on backend robustness and user experience fluidity.

Main Responsibilities:

• 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

Duration: 04/01/2027 - 31/12/2027 12 months (full time)

Skills required:

• 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

Language requirements:

English
Level Active knowledge
French
Level Native