Senior Jahia CMS Application Developer Job ID: JP053981, Liège

Job Title:

Senior Jahia CMS Application Developer Location:

Wallonia, Belgium (Hybrid) Role Overview

We are seeking a Senior Jahia CMS Application Developer to support the development, maintenance, and optimization of a large-scale shared web platform hosting multiple public sector websites. The role focuses on Jahia CMS customization, web application development, platform evolution, and technical support within a high-traffic environment.Key Responsibilities

Maintain and evolve the shared Jahia CMS platform and related services Design and implement technical and functional solutions aligned with business needs Develop and maintain templates, modules, and components within Jahia CMS Ensure coherent functional and technical architecture across the shared platformPerform corrective and evolutionary maintenance activities Validate and deploy developments on the shared Jahia environment Produce and maintain technical and functional documentation Provide technical recommendations and code quality guidance to developers Support and train CMS users and key stakeholdersMaintain a catalog of reusable web components and standards Required Skills&Experience

Strong expertise with Jahia CMS and Java development Experience with JSP/Servlet, OSGI, Spring Framework, and REST APIs Solid knowledge of HTML, CSS, Bootstrap, JavaScript, and JQuery Experience with Angular and/or React Knowledge of GraphQL API and JCR API Experience with PostgreSQL databases and Linux (Red Hat) environmentsFamiliarity with Apache, Tomcat, Docker/Podman, Maven, WebPack, Git, Jenkins, and Nexus Understanding of WCAG web accessibility standards Experience with analytics and SEO tools such as Matomo or Google tools Soft Skills

Strong communication and technical documentation skills Ability to explain technical concepts to non-technical users Proactive, analytical, and solution-oriented mindset Strong organizational and problem-solving abilities Ability to work autonomously and collaboratively in a team environment Comfortable working under pressure in production environmentsLanguages

French: Fluent/Native proficiency required Focus of the Role

Supporting the continuous improvement, industrialization, and maintenance of a large-scale shared Jahia CMS platform while ensuring high-quality web solutions, scalability, and operational reliability.

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